I have just upgraded my PC, everything seemed to be ok but now it has started randomly crashing.? What happens is that the monitor goes into standby mode and cannot be switched back on.? I cannot tell if the PC is still functioning or not.? I don't think it is although the lights on the front still flash and it sounds like it is accessing the hard drive as usual.

It happens when the computer is idle and in use (I thought it might be the power saving feature but I set this to never go off and still does it)

I have Norton Antivirus 2005 which says I am clean so I don't think it is a virus.

I have upgraded the driver of my graphics card to be the most up to date and that hasn't helped.

I have upgraded to Windows XP service pack 2 and that hasn't helped.

I am not very good with this sort of thing so I am a bit stuck now.? Below is the details of my PC (From Belarc Advisor) incase you require it.

Thanks in advance for any help!!!

Processor a
1.05 gigahertz AMD Athlon XP (It is actually a Sempron)
128 kilobyte primary memory cache
256 kilobyte secondary memory cache

System Model
MSI MS-7021 1.0

Main Circuit Board b
Board: MSI MS-7021 1.0
Bus Clock: 100 megahertz
BIOS: American Megatrends Inc. Version 07.00T 04/02/01

Drives
160.04 Gigabytes Usable Hard Drive Capacity
52.07 Gigabytes Hard Drive Free Space

OPTORITE DVD RW DD0203 [CD-ROM drive]
3.5" format removeable media [Floppy drive]

Generic STORAGE DEVICE USB Device [Hard drive] -- drive 1
Generic STORAGE DEVICE USB Device [Hard drive] -- drive 2
Generic STORAGE DEVICE USB Device [Hard drive] -- drive 3
Generic STORAGE DEVICE USB Device [Hard drive] -- drive 4
WDC WD1600BB-00GUA0 [Hard drive] (160.04 GB) -- drive 0, s/n WD-WCAL92163699, rev 08.02D08, SMART Status: Healthy

Memory Modules c,d
512 Megabytes Installed Memory
Slot '0' has 512 MB
Slot '1' is Empty

Local Drive Volumes
c: (NTFS on drive 0) 7.97 GB 2.45 GB free
d: (NTFS on drive 0) 152.07 GB 49.62 GB free

DISPLAY
NVIDIA GeForce2 MX 100/200 [Display adapter]
IBM E74 [Monitor] (15.7"vis, s/n 66-YHY39, April 2002)

Multimedia
Realtek AC'97 Audio for VIA (R) Audio Controller

Controllers
Standard floppy disk controller
Primary IDE Channel [Controller]
Secondary IDE Channel [Controller]
VIA Bus Master IDE Controller

Bus Adapters
VIA Serial ATA RAID Controller
VIA Rev 5 or later USB Universal Host Controller (4x)

Communications
Realtek RTL8139 Family PCI Fast Ethernet NIC

Virus Protection
Norton AntiVirus Version 11.00
? ? Virus Definitions Version 03/06/2005 Rev 35
? ? Last Disk Scan on 20 May 2005 12:29:26
? ? Realtime File Scanning On

Missing Microsoft Security Hotfixes
All required security hotfixes (using the 05/10/2005 Microsoft Security Bulletin Summary) have been installed.

Hi TheLamb

Are you sure that the hibernate setting is set to OFF?

Also, make sure that your GFX card is seated propelry and that the fan is working on it.
Go into the bios and dis-able all power saving functions.

This definitely sounds like a GFX card/Monitor/Power saving problem...

Thanks for the info.?

I have tried to turn the power save functions off in the bios and this hasn't helped.? I have also pulled the graphics card out and replaced it, which hasn't helped either.? ? :x

Is there a jumper setting on the motherboard to turn off power saving all together?

I'm not sure it is a power saving thing though as it can/does happen when I am in the middle of typing or using the mouse.?

Very odd, and very frustrating. :|

What type of interface do your mouse and keyboard have?

Usb or PS/2 ?

Both PS/2. Is that good or bad?

Any more ideas, It seems to be getting worse.

Have you checked to see whether your system is overheating, check all the fans, including the PSU fan