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Acer Aspire X3950 Service Guide - Page 102

System Memory, System BIOS, PCI Interface, Hard Disk Drive, WD1600AAJS-22L7A0

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System Memory Item DIMM Sockets Memory Type Module Name Organization Maximum Memory Vendor Model Name DIMM Size (GB) Pin System BIOS Item BIOS Vendor BIOS Version PCI Interface Item Number of Slots Specification Four DDR3-800/1066/1333 unbuffered DIMM PC3-8500/10600 ECC 8 GB Samsung Unifosa - M378B2873EH1-CH9 - M378B2873FHS-CH9 - M378B5673EH1-CH9 - M378B5673FH0-CH9 - GU502203EP0201 - GU512303EP0202 1, 2 1, 2 240 240 Apacer - 75.073C1.G02 - 75.A73C1.G02 1, 2 240 Specification American Megatrends Inc. P01-A0 Specification PCI Express x 1 slot PCI Express x16 slot Hard Disk Drive Item Vendor Model No. Interface Size Transfer Rate (Gb/s) Spindle Speed (RPM) Capacity (GB) Cache (MB) Specification WD WD1600AAJS-22L7A0 WD3200AAJS-22L7A0 WD6400AAKS-22A7B2 WD10EAVS-00D7B1 SATA II 3.5-inch 3 7200 160, 320, 640, 1000 160/320/1000 GB: 8 640 GB: 16 Seagate ST3160815AS ST3320813AS ST3640623AS SATA II 3.5-inch 3 7200 160, 320, 640 160/320 GB: 8 340 GB: 16 HGST HDT721016SLA380 HDT721032SLA380 HDT721064SLA360 SATA II 3.5-inch 3 7200 160, 320, 640 160/320 GB: 8 640 GB: 16 94 Appendix A

Section	Page
Table of Contents	7
System Tour	9
Features	9
System Components	11
Front Panel	11
Rear Panel	13
Internal Components	14
System LED Indicators	15
System Utilities	17
CMOS Setup Utility	17
Entering CMOS setup	18
Navigating Through the Setup Utility	18
Setup Utility Menus	19
System Disassembly	33
Disassembly Requirements	33
Pre-disassembly Procedure	34
Main Unit Disassembly	35
Removing the Side Panel	37
Removing the Front Bezel	38
Removing the Heatsink Fan Assembly	40
Removing the Processor	42
Removing the Optical Drive	44
Removing the Hard Disk Drive	47
Removing the Power Supply	48
Removing the Memory Modules	50
Removing an Expansion Card	51
Removing the Front I/O and Card Reader Boards	54
Removing the Mainboard	57
Removing the Top Bezel	59
System Troubleshooting	61
Hardware Diagnostic Procedure	61
System Check Procedures	62
Power System Check	62
System External Inspection	62
System Internal Inspection	62
Checkpoints	63
Viewing BIOS checkpoints	63
Bootblock Initialization Code Checkpoints	63
Bootblock Recovery Code Checkpoints	64
POST Code Checkpoints	65
DIM Code Checkpoints	67
ACPI Runtime Checkpoints	67
Error Messages	68
Memory	68
Boot	68
Storage Device	69
Virus Related	70
System Configuration	71
CMOS	72
Miscellaneous	72
USB eModule Error Messages	73
SMBIOS eModule Error Messages	73
CPU eModule Error Messages	73
MPS Table (Multi-processor) eModule Error Messages	73
Beep Codes	74
Index of Symptom-to-FRU Error Message	75
BIOS Recovery	80
Undetermined Problems	82
System Block Diagram and Board Layout	83
System Block Diagram	83
Mainboard Layout	84
FRU (Field Replaceable Unit) List	87
Exploded Diagram	88
X3950 FRU List	90
X5950 FRU List	98

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