need help with radeon 8500LE

[hclarkjr]

every time i play a game after about 1 hour or so the monitor and system lock up. the monitor power light goes out and i lose all sound and everything. this only happens when there is a lot going on at one time in a game. it seems like it is to much and the system locks up. i am using the radeon driver that installed with windowsXP service pack 1 clean install. i have tried upgrading the video drivers but windowsXP will not let me do it no matter what i try. i have read the guide posted here about removing the old drivers and such but to no avail. i do not have another video card to test to see if something else is wrong with system and wanted to get some opinions on what could be causing this. thank you to those that try to help me. my system stats are listed below here


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ASUS A7V133 REVISION 1.05
THUNDERBIRD 1100@1200 W\volcano 6u+
Antec 300 watt power supply with Enlight 7237 case
1 GIG PC133
RADEON 8500LE 64 MEG
3 MAXTOR UDMA 133 7200 RPM hard drives (200 GIG)
SB LIVE! 5.1
3COM 905 TX NIC
3COM CABLE MODEM CMX 2940
SONY 40X12X48 CD-RW
ADI 17? MICROSCAN MONITOR
Running WinXP

 

[Flight]

Have you downloaded the latest drivers for the 8500 from ATI? If so then go into control panel and select add/remove and select the current drivers to remove them. If the Windows drivers aren't listed load the ATI drivers. They should just overwrite the Windows drivers. Worked for me on an older Rage Fury Pro card.

I also wonder if your power supply could be faulty. 300 watts isn't a lot for the system you have. A 350 or more watt might be advisable. Good luck to you.