Acer Aspire X1935 Acer Aspire X1935 Desktop Service Guide
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- Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 1
Acer Aspire X1935 Service Guide PRINTED IN TAIWAN - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 2
Revision History Please refer to the table below for the updates made on this service guide. Date Chapter Updates ii - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 3
, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of Acer Incorporated. iii - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 4
of all necessary servicing, repair, and any incidental or consequential damages resulting from any defect in the software. Acer is a registered trademark of Acer Corporation. Intel is a registered trademark of Intel Corporation. Pentium Dual-Core, Celeron Dual-Core, Core 2 Duo, Core 2 Quad, Celeron - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 5
. WARNING CAUTION IMPORTANT Alerts you to any physical risk or system damage that might result from doing or not doing specific actions. Gives precautionary measures to avoid possible hardware or software problems. Reminds you to do specific actions relevant to the accomplishment of procedures. v - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 6
(e.g. add-on card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT be covered in this generic service guide. In such is made, it will not be noted in the printed Service Guide. For ACER-AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code to those - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 7
7 Hardware Specifications and Configurations 8 Power Management Function(ACPI support function) 12 Memory Modules 39 Removing the Power Supply 40 Removing the Front I/O and Optional Card Reader Troubleshooting 70 Hardware Diagnostic Procedure 70 System Check Procedures 71 Power - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 8
71 Beep Codes 72 Checkpoints 73 BIOS Recovery 76 Jumper and Connector Information 77 M/B Placement 77 Jumper Setting 79 Internal Header Pin Definition 80 Connector Pin Definition 83 FRU (Field Replaceable Unit) List 86 Aspire X19350 Exploded Diagram 87 Aspire X1935 FRU - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 9
power • Dual Output 4 (3+4) phase + 1 Phase PWM design. • 2 *High side MOS + 2 * Low side MOS. • Heatsink hole is reserved for MOS. Chipset • PCH: Intel B75 PCB • DTX, max 4 Layers Memory 2 same memory size DDRIII. memory module. • Max memory of 16 GB supported (using 4Gb tech). • Support DDR3 1. - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 10
Graphics • Intel® HD Graphics Support (supported by CPU). • Dual independent display on HDMI and VGA. • DVMT 5.0 technology support. • Enhanced 3D and Clear Video technology support. • Need to measure VGA follow Acer VGA SOP. • Monitor compatible is requested to the monitor AVL and DQM recommended - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 11
PS2 KB+MS • 1 * VGA connector • 1 * HDMI • 1 * RJ45 + Dual USB2.0 • 1 * Dual USB2.0 connector • 2 * USB 3.0 stack • 1 * 3 ports Audio jack On-board connectors • 1 * ILM(Independent Loading Mechanism) for LGA 1155 CPU (assign by Acer). • 1 * 24-pin ATX PWR connector. • 1 * H2X4 Power Supply Connector - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 12
• 1 * 3pin ME enable / disable connector(Jumper). System BIOS • Type: • Use SPI Flash. • ME Size: /5MBytes (For B75). • System BIOS: 8MBytes (For B75). • Kernel: • AMI Kernel with Acer skin. Power supply • Non PFC 220W / PFC 220W / Active PFC 220W. • Support models are listed on AVLC. 4 Chapter 1 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 13
Block Diagram Chapter 1 5 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 14
exterior components. Front Panel No. Component 1 Power button/indicator 2 Optical drive cover 3 Optical drive eject button 4 Headphone jack 5 Microphone-in jack 6 4-in-1 optional card reader supporting Memory Stick (MS), xD-Picture Card (xD), Secure Digital (SD), MultiMediaCard (MMC - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 15
Rear Panel No. Component 1 Line-in jack 2 RJ45 LAN connector 3 USB 3.0 ports 4 PS2 mouse port 5 Power connector 6 PS2 keyboard port 7 HDMI port 8 D-sub port 9 USB 2.0 ports 10 Line-out jack 11 Microphone jack 12 Expansion slot Chapter 1 7 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 16
Specification Processor Type Intel Ivy Bridge / Sandy Bridge Processor Socket Type LGA1155 Minimum operating speed 0 MHz (If Stop CPU Clock in Sleep State in BIOS Setup is set to Enabled.) BIOS Item Specification BIOS code programer AMI Kernel with Acer skin BIOS version P01-A0 BIOS - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 17
You can install memory modules in any combination as long as they match the above specifications. Audio Interface Item Specification Audio controller Intel PCH B75 Audio controller type ALC662-VD Audio channel codec 5.1 Audio function control Enable/disable by BIOS Setup Mono or - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 18
Intel B75 SATA X 3(2 * SATA 3Gb/s, 1 * SATA 6Gb/s) AHCI/IDE mode option Specification USB 2.0/1.1 or USB 3.0 Support legacy keyboard for legacy mode USB2.0: • Rear IO : * 4 ports • Internal Header: • *4 ports (2 * USB2.0 H5X2 Header) for B75 • All ports should meet USB IF spec and support - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 19
to 90% RH Vibration Operating (unpacked) 5 ~ 500 Hz: 2.20g RMS random, 10 minutes per axis in all 3 axes. 5 ~500 Hz: 1.09g RMS random, 1 hour per axis in all 3 axes. Power Management Devices S1 S3 S4 Power Button V V V USB Keyboard/Mouse V V N/A PME Disabled Disabled Disabled RCT - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 20
to control the VESA DPMS monitor. • Resume method:device activated (keyboard for DOS, keyboard &mouse for Windows. • Resume recovery time 3-5sec Global Standby Mode • Global power management timer(2-120minutes,time step=10minute). • Hard disk drive goes into Standby mode(for ATA standard interface - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 21
nonvolatile memory called CMOS RAM. This memory area is not part of the system RAM which allows configuration data to be retained when power is be simply referred to as "BIOS", "Setup", or "Setup utility" in this guide. The screenshots used in this guide display default system values. These values - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 22
Entering CMOS setup 1. Turn on the server and the monitor. If the server is already turned on, close all open applications, then restart the server. 2. During POST, press Delete. If you fail to press Delete before POST is completed, you will need to restart the server. The Setup Main menu will be - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 23
Time (hh:mm:ss) Description Version number of the BIOS setup utility. Date when the BIOS setup utility was built Type of CPU installed on the system. Core speed of the CPU installed on the system. Physical CPU count Total size of system memory installed on the system. Product name of the system - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 24
Advanced Parameter Miscellaneous Advanced Chipset Configuration Integrated Peripherals PC Health Status Description Press Enter to access the Miscellaneous submenu Press Enter to access the Advanced Chipset Configuration submenu Press Enter to access the Integrated Peripherals submenu Press Enter - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 25
AHCI Port0/1/2 Bootup Num-lock Description Displays the status of auto detection of the AHCI device. Selects power on state for Num Lock. USB Beep Message Enables or disables BIOS to display error beeps or messages during USB device enumeration. Option On Off Enabled Disabled Chapter 2 17 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 26
Advanced Chipset Configuration Intel EIST Intel XD Bit Intel VT When enabled, this feature allows the OS to reduce power consumption. When disabled, the system operates at maximum CPU speed. When enabled, the processor disables code execution when a worm attempts to insert a code in the buffer - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 27
Integrated Peripherals Parameter Onboard SATA Controller Onboard SATA Mode Onboard USB Controller Legacy USB Support USB Storage Emulation Onboard Graphics Controller Onboard Audio Controller Onboard LAN Controller Onboard LAN Option ROM Description Enables or disables the onboard SATA controller. - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 28
PC Health Status Parameter Smart Fan Description Enables or disables the smart system fan control function. Option Enabled Disabled 20 Chapter 2 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 29
turned off with a software commend. If you enable this item, the system can automatically resume if there is an incoming call on the PCIE LAN card.You must use an ATX power supply in order to use this feature.Use this item to dowake-up action if inserting the PCIE - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 30
Security Parameter Supervisor Password User Password Change Supervisor Password Description Option This item indicates whether a supervisor password has been set. If the password has been installed, Installed displays. If not, Not Installed displays. This item allows you to change user password - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 31
access the Network Device Priority submenu and specify the boot device priority sequence from available network drives. When enabled, the BIOS splash screen displays during startup. When disabled, the diagnostic screen displays during startup. Enabled Disabled Determines whether the system will - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 32
the Exit menu and press Enter. Select this option to quit the BIOS Setup Utility without making any permanent changes to the system configuration, and this option and press Enter to save all the changes and return to the BIOS Setup Utility. Use this item enables you to discard any changes that you - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 33
3 System Disassembly and Assembly This chapter contains step-by-step procedures on how to disassemble and assembly the desktop computer for maintenance and troubleshooting. Disassembly Requirements To disassemble the computer, you need the following tools: • Wrist grounding strap and conductive mat - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 34
procedure, perform the steps listed below: 1. Turn off the system and all the peripherals connected to it. 2. Unplug the power cord from the power outlets. 3. Unplug the power cord from the system. 4. Unplug all peripheral cables from the system. 5. Place the system unit on a flat, stable surface - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 35
Removing the Side Panel 1. Remove the two screws located on the rear edge of the side panel. 2. Slide the panel back about 2.5 cm (1.0 in) to release it from the chassis notches, then detach the panel from the chassis. 3. Put the side panel aside for reinstallation later. Chapter 3 27 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 36
Removing the Front Bezel 1. Release the front bezel retention tabs from the chassis interior. 2. Pull the front bezel away from the chassis. NOTE: The bezel can't be entirely removed until completed below step.due to the other end of power cable connecting with motherboard. 28 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 37
-nosed screwdriver to loosen the four screws on the heat sink, in the order as shown below. Note:CPU Fan has been highlighted with the yellow rectangle as above image shows.Please detach the CPU Fan and follow local regulations for disposal. 2. Lift the heat sink fan assembly away from the mainboard - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 38
3. Disconnect the fan cable from the mainboard. 4. Remove the heat sink fan assembly then lay it down in an upright position-with the thermal patch facing upward. Do not let the thermal patch on the heat sink fan assembly touch the work surface. 5. Use an alcohol pad to wipe off the thermal grease - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 39
Removing the Processor IMPORTANT:Before removing a processor from the mainboard, make sure to create a backup file of all important data. WARNING:The processor becomes very hot when the system is on. Allow it to cool off first before handling. 1. Release the load lever. 2. Lift the load lever and - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 40
3. Pull out the processor from the socket. IMPORTANT: If you are going to install a new processor, note the arrow on the corner to make sure the processor is properly oriented over the socket. 32 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 41
Removing the HDD-ODD Bracket 1. Remove the two screws that secure the HDD-ODD bracket to the chassis. 2. Lift the bracket up. Chapter 3 33 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 42
Removing the Optical Drive and the Hard Disk Drive 1. Disconnect the SATA (1) and power (2) cables from the rear of the optical drive. 2. Disconnect the other end of the SATA cable from the mainboard. 34 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 43
3. Disconnect the SATA (2) and power (1) cables from the rear of the hard disk drive. 4. Disconnect the other end of the SATA cable from the mainboard. Chapter 3 35 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 44
5. Remove the screws that secure the optical drive to the HDD-ODD bracket. 6. Pull the optical drive out of the drive bay. 36 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 45
7. Remove the four screws that secure the hard disk drive to the HDD bracket. 8. Slide the hard disk drive out of the bracket. Chapter 3 37 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 46
Detaching the Front Bezel 1. Disconnect the power button/LED cable from its mainboard connector. 2. Pull out the power button/LED cable from the chassis. 38 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 47
removing any DIMM from the memory board, make sure to create a backup file of all important data. 1. Press the holding clips on both sides of the DIMM slot outward to release the DIMM(1). 2. Gently pull the DIMM upward to pull it away from the M/B(2). Note:Circuit boards >10 cm² has been highlighted - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 48
the Power Supply 1. Disconnect the ATX power supply cables from its mainboard connector. a. Squeeze on the retaining latch (1) attached to the cable end of the connector. b. Grasp the cable end of the connector and pull it straight up (2). 2. Remove the screw that secures the power supply to - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 49
3. Remove the three screws that secure the power supply to the rear panel. 4. Pull the the power supply module toward the front. 5. Tilt the power supply module slightly to the right and lift it out of the chassis. Chapter 3 41 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 50
Removing the Front I/O and Optional Card Reader Assembly 1. Release the cable from plastic clip. 2. Release these cables from the metal clip. 3. Disconnect the front I/O and optional card reader from their mainboard connectors. 42 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 51
4. Detach the cables from the front I/O and optional card reader. Remove the cables. 5. Remove the screw that secures the bracket to the chassis. 6. Pull the bracket out from the chassis. Chapter 3 43 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 52
7. Remove the two screws that secure the front I/O and card reader assembly to the bracket. 8. Remove the front I/O and card reader assembly from the bracket. Note:Circuit boards >10 cm² has been highlighted with the yellow rectangle as above image shows. Please detach the Circuit boards and follow - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 53
Removing the Mainboard 1. Remove the six screws that secure the mainboard to the chassis. Note:Circuit boards >10 cm² has been highlighted with the yellow rectangle as above image shows. Please detach the Circuit boards and follow local regulations for disposal. 2. Lift the - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 54
3. Punching in IO Shield then you can remove it. 4. Remove the RTC battery. Note:RTC battery has been highlighted with the yellow circle as above image shows.Please detach the RTC battery and follow local regulations for disposal. 46 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 55
Assembly Requirements To assemble the computer, you need the following tools: • Wrist grounding strap and conductive mat for preventing electrostatic discharge • Flat-blade screwdriver • Philips screwdriver • Hex screwdriver • Plastic flat-blade screwdriver • Plastic tweezers NOTE: The screws for - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 56
procedure, perform the steps listed below: 1. Turn off the system and all the peripherals connected to it. 2. Unplug the power cord from the power outlets. 3. Unplug the power cord from the system. 4. Unplug all peripheral cables from the system. 5. Place the system unit on a flat, stable surface - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 57
Removing the Side Panel 1. Remove the two screws located on the rear edge of the side panel. 2. Slide the side panel toward the back of the chassis until the tabs on the cover disengage with the slots on the chassis. 3. Lift the side panel away from the server and put it aside for reinstallation - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 58
Removing the Front Bezel 1. Release the front bezel from the chassis interior, then pull the bezel away from the chassis. 50 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 59
Removing the HDD-ODD Bracket 1. Remove the two screws from chassis. 2. Lift the cage up and turn it over. Chapter 3 51 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 60
Reinstalling the I/O Shielding 1. Install I/O shielding into chassis. 52 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 61
Reinstalling the Main Board 1. Slide the mainboard into the chassis, with the I/O ports of the mainboard extruding from their port holes, then lower the mainboard in place. 2. Make sure the screw holes on the main board are aligned with those on the chassis. Secure the mainboard with four screws. - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 62
3. Connect the front I/O and optional card reader to the mainboard connectors. 4. Install the retention clip to chassis,then install the front audio cable into the plastic clip. 54 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 63
Reinstalling the Power Supply 1. Tilt the power supply module into the chassis (1) and push the power supply module toward the rear (2), with the power connector extruding from the rear panel. 2. Secure the power supply to the rear panel using three screws. Chapter 3 55 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 64
3. Secure the power supply to the chassis using the screw. 4. Connect the ATX 24Pin Power cable and ATX 4Pin Power cable to main board. 56 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 65
Reinnstalling the Memory 1. Open the holding clips on both sides of the DIMM slot outward. 2. Insert the memory module into the DIMM1 slot (1) and then press it down until it clicks into place (2). 3. If a second memory module is available, install it in the DIMM2 slot by repeating step 1. Chapter - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 66
Reinstalling the Front Bezel Power Button/LED Cable 1. Insert the power button/LED cable through the front of the chassis. 2. Connect the power button/LED cable to its mainboard connector. 58 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 67
Reinstalling the Optical Drive and the Hard Disk Drive 1. Slide the hard disk drive into the drive bay. 2. Secure the hard disk drive to the HDD-ODD bracket using four screws. Chapter 3 59 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 68
3. Slide the optical drive into the drive bay. 4. Secure the optical drive to the HDD-ODD bracket using two screws. 5. Connect one end of the SATA cable to the SATA connector on the mainboard. 60 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 69
6. Let HDD SATA data cable pass through the two metal clip. 7. Connect the SATA and power cables to their connectors on the rear of the hard disk drive. Chapter 3 61 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 70
8. Connect one end of the SATA cable to the SATA connector on the mainboard. 9. Connect the SATA and power cables to their connectors on the rear of the optical drive. 62 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 71
Reinstalling the HDD-ODD Bracket 1. Install the HDD-ODD bracket into the chassis. 2. Secure the HDD-ODD bracket to the chassis using two screws. Chapter 3 63 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 72
Reinstalling the Processor 1. Release the load lever. 2. Lift the load lever and load plate to the fully open, upright position (1) and (2). 64 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 73
3. Gently put the processor to the socket., then close the retention plate and the load lever to its latch. IMPORTANT: If you are going to install a new processor, note the arrow on the corner to make sure the processor is properly oriented over the socket. Chapter 3 65 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 74
Reinstalling the Heat Sink Fan Assembly 1. Conect the cooler cable to the main board connector. 2. Position the heat sink fan assembly on top of the processor, making sure the screws are aligned with the screw holes on the main board. 66 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 75
3. Secure the heat sink fan assembly to the screw holes on the main board using four screws. Chapter 3 67 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 76
Reinstalling the Front Bezel 1. Insert the tabs on the front bezel into the notches (1) on the left side of the chassis and attach the front bezel (2) in the direction indicated. 2. Make sure the front bezel retention tabs are securedly fastened to the chassis interior. 68 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 77
Reinstalling the Side Panel 1. Align the tabs on the lower edge of the side panel with the notches on the bottom side of the chassis. 2. Align the tabs on the upper edge of the side panel with the notches on the top side of the chassis. Chapter 3 69 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 78
3. Push the side panel toward the front of the chassis until it is firmly closed. 4. Secure the side panel to the rear edge of the chassis using two screws. 70 Chapter 3 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 79
Chapter 4 System Troubleshooting This chapter provides instructions on how to troubleshoot system hardware problems. Hardware Diagnostic Procedure IMPORTANT:The diagnostic tests described in this chapter are only intended to test Acer products. NonAcerproducts, prototype cards, or modified options - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 80
their appropriate connectors. 9. Verify that all components are Acer-qualified and supported. 10. Replace the system covers. 11. Power on the system. 12. If the problem with the system is not evident, you can try viewing the POST messages and BIOS event logs during the system startup. 71 Chapter 4 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 81
beep then two short beep Two short beeps Cause and Description System is ready. System is OK. Memory not installed or memory error. VGA not installed or VGA error. Graphics card error/not installed, graphics card memory error or graphics card BIOS checksum error. BIOS damaged. BIOS is damaged, BIOS - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 82
to memory in right segments. Copies BIOS from ROM to RAM for faster access. Performs main BIOS checksum and updates recovery status accordingly. Both key sequence and OEM specific method is checked to determine if BIOSrecovery is forced. Main BIOS checksum is tested. If BIOS recovery is necessary - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 83
Description Restore CPUID value back into register. Give control to BIOS POST (ExecutePOSTKernel). See POST Code Checkpoints section of document for more information. System is waking from ACPI S3 state. OEM memory detection/configuration error. This range is reserved for chipset vendors & system - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 84
code gets control when the BIOS determines that a BIOS recovery needs to occur because the user has forced the update or the BIOS checksum is corrupt. The following table describes the type of checkpoints that may occur during the Bootblock recovery portion of the BIOS. NOTE: Checkpoints may differ - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 85
USB flash drive(Disk on Key, DOK). 2. Install the DOK to the system. 3. Press power button to boot the system and then press Ctrl + Home. 4. The BIOS recovery function will be executed. 5. After BIOS is updated completely, the system will auto reboot. 6. Please enter the setup menu to load default - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 86
socket 3 SFAN1 5 PWR1 7 MECLR1 Description No LGA1155 Pin socket 2 for Intel IVY/SANDY BRIDGE CPUs System fan 4 connector Standard 24-pin ATX 6 power connector Clear ME jumper 8 Label CFAN1 DIMM1~4 TPM1 CMOS1 Description CPU cooling fan connector 240-pin DDR3 SDRAM slots TPM header - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 87
21 VGA1 23 KBMS1 Description Debug header No Label 10 SATA0~2 Front panel switch/ 12 LED header Front panel USB3.0 14 headers PCI Express x1 slot 16 USBF3~4 PCIE16 AUDF1 On board audio connector On board USB3.0 connector On board VGA connector On board KB/MS connector 18 ULAN1 20 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 88
Jumper Setting This section explains how to set the jumper for correct configuration of the main board. Jumpers with more than one pin are numbered. When setting a jumper, ensure that the jumper caps are placed on the correct pins. The following illustration shows the location of CMOS1. The - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 89
Internal Header Pin Definition Header Name Function CPU Fan Header Definition 1:GND 2:+12V 3:SENSE 4:PWM CONTROL System Fan Header 1:GND 2:+12V 3:SENSE 4:PWM CONTROL Front Panel Audio Header 1:MIC_L 2:GND 3:MIC_R 4:PWR 5:FRONT_R 6:MIC_JD 7:FRONT_SENCE 8:NC 9:FRONT_L 10:FRONT_JD 80 Chapter 5 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 90
Definition 1:CLOCK 2:GND 3:LFRAME 4:NC 5:RESET 6:NC 7:DATA 8:DATA 9:VCC3 10:DATA 11:DATA 12:GND 13:NC 14:NC 15:SB3V 16:SERIRQ 17 panel Header 1:NC 2:GND 3:SB5V 4:LAN LED 5:NC 6:NC 7:PWR RST CONTROL 8:GND 9:GND 10:PWR BTN CONTROL 11:SATA LED 12:GND 13:VCC 14:VCC5 for HDD LED Front USB Header 1: - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 91
Header Name Function Front USB3.0 Header Definition 1:USB PWR 2:RXN1 3:RXP1 4:GND 5:TXN1 6:TXP1 7:GND 8:USB_N1 9:USB_P1 10:OC 11:USB_P2 12:USB_N2 13:GND 14:TXP2 15:TXN2 16:GND 17:RXP2 18:RXN2 19:USB PWR 20:NC 82 Chapter 5 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 92
Connector Pin Definition Header Name Function RJ45 and 2 PORT USB Definition 1:LAN PWR 2:MDI0+ 3:MDI04:MDI1+ 5:MDI16:MDI2+ 7:MDI28:MDI3+ 9:MDI310:GND 11:LAN_ACT_LED12:LAN_ACT_LED+ 13:LINK_100_LEDJ 14:LINK_1000_LEDJ 15:USB PWR 16:USB_N1 17:USB_P1 18:GND 19:USB PWR 20:USB_N0 21:USB_P0 22~30:GND - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 93
11:USB_N1 12:USB_P1 13:GND 14:RXN2 15:RXP2 16:GND 17:TXN2 18:TXP2 19~22:GND 1:RED 2:GREEN 3:BLUE 4:NC 5,6,7,8:GND 9:+5V_VGA 10:GND 11:NC 12:DDC_DATA 13:HSYNC 14:VSYNC 15:DDC_CLK 16:GND 17:GND 84 Chapter 5 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 94
Chapter 5 USB CONN 1:USB PWR 2:USB_N0 3:USB_P0 4:GND 5:USB PWR 6:USB_N1 7:USB_P1 8~12:GND HDMI 1:HDMI_P0 2:GND 3:HDMI_N0 4:HDMI_P1 5:GND 6:HDMI_N1 7:HDMI_P2 8:GND 9:HDMI_N2 10:HDMI_CLK_P 11:GND 12:HDMI_CLK_N 13:NC 14:NC 15:CTRL_CLK 16:CTRL_DATA 17:GND 18:+5V_PWR 19:DDSP_HPD 20,21,22,23:GND PS2 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 95
FRU (Field Replaceable Unit) list in global configuration of the Aspire X1935 desktop computer. Refer to this chapter whenever ordering the parts to , it will NOT be noted on the printed Service Guide. For Acer authorized service providers, your Acer office may have a different part number code from - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 96
Aspire X1935 Exploded Diagram NOTE: This section will be updated when more information becomes available. ITEM 1 2 3 4 5 6 NAME Lowercase assembly HDD-ODD bracket Front I/O and card reader board bracket Front cover assembly Lowercase support Side cover Q'TY 1 1 1 1 1 1 ITEM 7 8 9 10 11 12 NAME - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 97
Hai Aspire Bezel AX153 w/ USB 2 port, w/o CR bezel (2011 New CI) w/HX097J chassis PZ.11900.342 Core i5-3450 (3.1G 6M 1333FSB) KC.34501.CI5 N/A Core i3-2120 (3.30G 3M DDR3 1333) , Q0 , 65W , Intel HD Graphics 2000 KC.21201.CI3 Pentium Dual Core G630 (2.7G 3M 1066FSB) KC.63001.DEG CPU Intel - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 98
Category HDD ODD VGA 89 Description HU564403EP0200 ACR512X64D3U13C9G Memory A-DATA UNB-DIMM DDRIII 1333 2GB AD63I1B0823EV LF+HF Memory A-DATA UNB-DIMM DDRIII 1333 4GB AD63I1C1624EV LF+HF Part Number KN.4GB0H.001 KN.4GB07.002 KN.2GB0C.009 Exploded Diagram Item KN.4GB0C. - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 99
, Ralink RT3090, 802.11b/g/n 1x1 WLAN PCI-E x1 card (Low-profile) NI.10200.038 N/A Power Supply Speaker Chapter 6 Non-PFC 220W (8.5L) EuP Non- acer logo SP.10600.048 N/A JS speaker USB MS1238UA with new acer logo ( meet AJC spec) SP.10600.049 Neosonica speaker USB 9M-20A200-000 with new acer - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 100
logo MS.11200.123 N/A Primax mouse USB MOF9UO black color;with new acer logo MS.11200.115 Primax Optical mouse PS2 MOFGKO with acer logo MS.11200.105 Logitech Optical mouse PS2 M-S0004-O with acer logo MS.11200.104 PC Partner DVI to DSUB converter D0.VGA26.P01 Keyboard LITE-ON SK-9621B - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 101
Category Chapter 6 Description Part Number Keyboard LITE-ON SK-9621B USB Black Norwegian Keyboard LITE-ON SK-9621B USB Black Hebrew Keyboard LITE-ON SK-9621B USB Black Polish Keyboard LITE-ON SK-9621B USB Black Slovenian Keyboard LITE-ON SK-9621B USB Black Slovak Keyboard LITE-ON SK-9621B USB - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 102
Category 93 Description Part Number Keyboard LITE-ON SK-9611 PS/2 Black Thailand Keyboard LITE-ON SK-9611 PS/2 Black Spanish Keyboard LITE-ON SK-9611 PS/2 Black Portuguese Keyboard LITE-ON SK-9611 PS/2 Black Canadian French Keyboard LITE-ON SK-9611 PS/2 Black Brazilian Portuguese Keyboard LITE-ON - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 103
Category Chapter 6 Description Part Number Keyboard LITE-ON SK-9611 PS/2 Black Nordic Keyboard LITE-ON SK-9611 PS/2 Black English/ Canadian French Keyboard LITE-ON SK-9611 PS/2 Black Czech/ Slovak Keyboard LITE-ON SK-9611 PS/2 Black Swiss/FR Keyboard LITE-ON SK-9611 PS/2 Black Korean Keyboard - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 104
Category 95 Description Part Number Keyboard PRIMAX KB36111 PS/2 Black Slovenian Keyboard PRIMAX KB36111 PS/2 Black Slovak Keyboard PRIMAX KB36111 PS/2 Black Russian Keyboard PRIMAX KB36111 PS/2 Black Hungarian Keyboard PRIMAX KB36111 PS/2 Black Greek Keyboard PRIMAX KB36111 PS/2 Black Danish - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 105
Category Chapter 6 Description Part Number Keyboard PRIMAX KB36211 USB Black Canadian French Keyboard PRIMAX KB36211 USB Black Brazilian Portuguese Keyboard PRIMAX KB36211 USB Black Japanese Keyboard PRIMAX KB36211 USB Black German Keyboard PRIMAX KB36211 USB Black Italian Keyboard PRIMAX KB36211 - Acer Aspire X1935 | Acer Aspire X1935 Desktop Service Guide - Page 106
Category Description Part Number Keyboard PRIMAX KB36211 USB Black Swiss/FR Keyboard PRIMAX KB36211 USB Black Korean Keyboard PRIMAX KB36211 USB Black Spanish Latin Keyboard PRIMAX KB36211 USB Black US with India Rupee Symbol KB.USB0P.256 KB.USB0P.257 KB.USB0P.258 KB.USB0P.306 Exploded Diagram