Home » HP Manuals » Desktops » HP ProDesk 480 G2 Micro » Manual Viewer

HP ProDesk 480 G2 Micro Maintenance and Service Guide ProDesk 400 G2 Microtowe - Page 125

Solving Internet access problems

View all HP ProDesk 480 G2 Micro manuals

Add to My Manuals
Save this manual to your list of manuals

Page 125 highlights

A USB device, headphone, or microphone is not recognized by the computer. Cause Solution The correct device driver is not installed. 1. Install the correct driver for the device. 2. You might need to reboot the computer. The cable from the device to the computer does not work. 1. If possible, replace the cable. 2. Restart the computer. The device is not working. 1. Replace the device. 2. Restart the computer. USB ports on the computer are disabled in Computer Setup. Run the Computer Setup utility and ensure that the USB ports are set to Enabled in Security > USB Security. Solving Internet access problems If you encounter Internet access problems, consult your Internet Service Provider (ISP) or refer to the common causes and solutions listed in the following table. Unable to connect to the Internet. Cause Solution Internet Service Provider (ISP) account is not set up properly. Verify Internet settings or contact your ISP for assistance. Web browser is not set up properly. Verify that the Web browser is installed and set up to work with your ISP. Cable/DSL modem is not plugged in. Plug in cable/DSL modem. You should see a "power" LED light on the front of the cable/DSL modem. Cable/DSL service is not available or has been interrupted due to bad weather. Try connecting to the Internet at a later time or contact your ISP. (If the cable/DSL service is connected, the "cable" LED light on the front of the cable/DSL modem will be on.) The CAT5 UTP cable is disconnected. Connect the CAT5 UTP cable between the cable modem and the computers's RJ-45 connector. (If the connection is good, the "PC" LED light on the front of the cable/DSL modem will be on.) IP address is not configured properly. Contact your ISP for the correct IP address. Cookies are corrupted. (A "cookie" is a small piece of information that a Web server can store temporarily with the Web browser. This is useful for having the browser remember some specific information that the Web server can later retrieve.) Windows 7: 1. Select Start > Control Panel. 2. Click Internet Options. 3. In the Browsing history section on the General tab, click the Delete button. 4. Select the Cookies check box and click the Delete button. Windows 8: 1. From the Start screen, type c, and then select Control Panel from the list of applications.. 2. Click Internet Options. 3. In the Browsing history section on the General tab, click the Delete button. Solving Internet access problems 115

Section	Page
Product features	11
Standard configuration features	11
Front panel components	12
Rear panel components — HP ProDesk 400 G2 and 480 G2 models	13
Rear panel components — HP ProDesk 490 G2 models	16
Serial number location	17
Activating and Customizing the Software	18
Activating and customizing the software in Windows 7	18
Activating the Windows operating system	18
Downloading Windows 7 updates	18
Installing or upgrading device drivers	19
Customizing the monitor display	19
Activating and customizing the software in Windows 8	19
Activating the Windows Operating System	19
Downloading Windows 8 updates	19
Customizing the monitor display	20
Illustrated parts catalog	21
Computer major components	21
Cables	24
Misc parts	25
Drives	27
PCI boards	28
Routine care, SATA drive guidelines, and disassembly preparation	29
Electrostatic discharge information	29
Generating static	29
Preventing electrostatic damage to equipment	30
Personal grounding methods and equipment	30
Grounding the work area	30
Recommended materials and equipment	31
Operating guidelines	31
Routine care	32
General cleaning safety precautions	32
Cleaning the Computer Case	32
Cleaning the keyboard	32
Cleaning the monitor	33
Cleaning the mouse	33
Service considerations	33
Power supply fan	33
Tools and software Requirements	33
Screws	34
Cables and connectors	34
Hard Drives	34
Lithium coin cell battery	34
SATA hard drives	35
SATA hard drive cables	35
SATA data cable	35
SMART ATA drives	35
Cable management	35
Removal and replacement procedures: Microtower	37
Preparation for disassembly	37
Access panel	38
Front bezel	39
Optical drive bezel blank	40
Memory	41
DIMMs	41
DDR3-SDRAM DIMMs	41
Populating DIMM sockets (HP ProDesk 400 G2 and 480 G2 models)	42
Populating DIMM sockets (HP ProDesk 490 G2 models)	42
Installing DIMMs	43
Expansion cards	44
Drives	48
Drive positions	50
Removing a slim optical drive	51
Installing a slim optical drive	51
Removing a 3.5-inch hard drive	53
Installing a 3.5-inch hard drive	54
Removing a 2.5-inch hard drive	55
Installing a 2.5-inch hard drive	56
WLAN module	57
RTC battery	60
DisplayPort connector module	62
Front I/O and power switch assembly	63
Fan sink	66
Processor	68
Speaker	70
Fan	72
Power supply	74
System board	78
HP ProDesk 400 G2 system board callouts	80
HP ProDesk 480 G2 system board callouts	81
HP ProDesk 490 G2 system board callouts	83
Computer Setup (F10) Utility	85
Computer Setup (F10) Utilities	85
Using Computer Setup (F10) Utilities	86
Computer Setup—File	87
Computer Setup—Storage	88
Computer Setup—Security	89
Computer Setup—Power	92
Computer Setup—Advanced	93
Recovering the Configuration Settings	94
Troubleshooting without diagnostics	95
Safety and comfort	95
Before you call for technical support	95
Helpful hints	96
Solving general problems	97
Solving power problems	101
Solving hard drive problems	102
Solving media card reader problems	104
Solving display problems	105
Solving audio problems	109
Solving printer problems	111
Solving keyboard and mouse problems	112
Solving Hardware Installation Problems	114
Solving Network Problems	116
Solving memory problems	120
Solving processor problems	121
Solving CD-ROM and DVD problems	122
Solving USB flash drive problems	124
Solving front panel component problems	124
Solving Internet access problems	125
Solving software problems	126
POST error messages	128
POST numeric codes and text messages	128
Interpreting POST diagnostic front panel LEDs and audible codes	135
Password security and resetting CMOS	138
Resetting the password jumper	138
Changing a Setup or Power-On password	139
Deleting a Setup or Power-On password	140
Clearing and resetting the CMOS	140
HP PC Hardware Diagnostics	142
Why run HP PC Hardware Diagnostics	142
How to access and run HP PC Hardware Diagnostics	142
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device	142
System backup and recovery	144
Backing up, restoring, and recovering in Windows 8.1 or Windows 8	144
Creating recovery media and backups	144
Restoring and recovering using Windows tools	144
Using Reset when the system is not responding	145
Recovery using the Windows recovery USB flash drive	145
Recovery using Windows operating system media (purchased separately)	146
Backing up, restoring, and recovering in Windows 7	146
Creating recovery media	147
Creating recovery media using HP Recovery Manager (select models only)	147
Creating recovery discs with HP Recovery Disc Creator (select models only)	148
Creating recovery discs	148
Backing up your information	149
System Restore	149
System Recovery	150
System Recovery when Windows is responding	150
System Recovery when Windows is not responding	151
System Recovery using recovery media (select models only)	151
Using HP Recovery Disc operating system discs (select models only)	152
Power cord set requirements	154
General requirements	154
Japanese power cord requirements	154
Country-specific requirements	155
Statement of Volatility	156
Specifications	158

Match case Limit results 1 per page

A USB device, headphone, or microphone is not recognized by the computer.

Cause

Solution

The correct device driver is not installed.

Install the correct driver for the device.

You might need to reboot the computer.

The cable from the device to the computer does not work.

If possible, replace the cable.

Restart the computer.

The device is not working.

Replace the device.

Restart the computer.

USB ports on the computer are disabled in Computer Setup.

Run the Computer Setup utility and ensure that the USB ports are

set to

Enabled

Security

USB Security

Solving Internet access problems

If you encounter Internet access problems, consult your Internet Service Provider (ISP) or refer to the

common causes and solutions listed in the following table.

Unable to connect to the Internet.

Cause

Solution

Internet Service Provider (ISP) account is not set up properly.

Verify Internet settings or contact your ISP for assistance.

Web browser is not set up properly.

Verify that the Web browser is installed and set up to work with

your ISP.

Cable/DSL modem is not plugged in.

Plug in cable/DSL modem. You should see a “power” LED light on

the front of the cable/DSL modem.

Cable/DSL service is not available or has been interrupted due to

bad weather.

Try connecting to the Internet at a later time or contact your ISP.

(If the cable/DSL service is connected, the “cable” LED light on the

front of the cable/DSL modem will be on.)

The CAT5 UTP cable is disconnected.

Connect the CAT5 UTP cable between the cable modem and the

computers’s RJ-45 connector. (If the connection is good, the “PC”

LED light on the front of the cable/DSL modem will be on.)

IP address is not configured properly.

Contact your ISP for the correct IP address.

Cookies are corrupted. (A “cookie” is a small piece of information

that a Web server can store temporarily with the Web browser.

This is useful for having the browser remember some specific

information that the Web server can later retrieve.)

Windows 7:

Select

Start

Control Panel

Click

Internet Options

In the

Browsing history

section on the

General

tab, click the

Delete

button.

Select the

check box and click the

Delete

button.

Windows 8:

From the Start screen, type

, and then select

Control Panel

from the list of applications..

Click

Internet Options

In the

Browsing history

section on the

General

tab, click the

Delete

button.

Solving Internet access problems

115