big problem, need a little help

[Sl1m1thy]

I tend to think this is a GFX problem which is why i posted it here, if a mod thinks otherwise dont hesitate to move the thread :)

ok where do i start
few weeks ago i was playing bf2 online when all of a sudden my pc shut down
it took me about an hour to get it back up and running, when i went on bf2 again it did exactly the same, only this time it totaly blew my x800 :( i tested it on another 2 pc's before i considered it knacked
so i bought a 9800 pro for the time being, well within 5 mins on bf2 again it decided to shut down. Well not shut down but just shows me a black screen and the HDD led is always on. But now i just turn it off and it starts up every time.
In the end i put it down to a badly coded game (maybe)
Now it always happens within 5 mins of a game on c&c generals and zero hour, but only online. if i play offline its fine.
Call of duty works perfect online and so does worms world party, so its not every game.
1 full format and 2 quick formats later its still doing the same thing.

I've updated all the drivers, all windows updates are installed and patches for all the games are up to date
Tested with 2 PSU's, 1 antec TP 480 and 1 Easycool 500
Bought some new better ram today.
Fitted another NIC rather than using onboard lan

after all that im still having the same problem and now im out of ideas
my system is...

WinxpSP2
athlon64 3000 939
Asus A8v Deluxe
2x 512mb DDR400 3200 kingston
onboard sound
Ati 9800 atlantis 128mb

if any one has any idea or came across a similar problem please tell me what you think it may be

Cheers

[Vulcan]

uh... Hmm. Thats totaly bizare man. My first guess would be the power supply, since you've already tried two powersupplies its unlikely thats the problem. I'd bet its the motherboard man.

What I would do is take it apart, build it up outside of the case with only the bare essentials, no optical drives, one stick of ram, one hard drive, no overclocks. Let me know how it goes.

[Sl1m1thy]

was looking around the asus forums for solutions and quite a few people had this exact same thing, it was cured by a number of things (via 4in1's, new agp driver etc) which i've done and again nothing worked. I flashed the bios last night so ill run a few tests today to see if that helped
if this doesnt work ill try what you said by stripping it
other than that does any one else have any ideas ?

[Sl1m1thy]

well that didnt work
games still crashing as usual :(

[Sl1m1thy]

i found the problem (it was actualy solved on these forums in the past)
its my mobo
Asus a8v deluxe has a problem with radeon cards for some unknown reason

to fix it just do this.
Turn off fastwrite in bios AND in windows (start>run>smartgart> turn off all options)
Use AGP4x, change this in bios and windows again
tadaa...problem solved

i know its reducing the performance of the card but going from 8x to 4x isnt that much any way and you wouldnt notice much a drop unless you benchmark
maybe this should be moved to the Asus mobo forum ?

[Vulcan]

i found the problem (it was actualy solved on these forums in the past)
its my mobo
Asus a8v deluxe has a problem with radeon cards for some unknown reason

to fix it just do this.
Turn off fastwrite in bios AND in windows (start>run>smartgart> turn off all options)
Use AGP4x, change this in bios and windows again
tadaa...problem solved

i know its reducing the performance of the card but going from 8x to 4x isnt that much any way and you wouldnt notice much a drop unless you benchmark
maybe this should be moved to the Asus mobo forum ?

Yeah, you won't notice a performance difference in actual use. I'm glad you solved the problem. Still doesn't explain why the x800 died on ya :/

[Sl1m1thy]

aye the x800 situation was a bummer :(
lucky the fudo is out soon though ;)