crash to desktop in every games

[grypht]

I'm having a weird issue with my computer:
CPU: AMD Athlon XP 2600+ Thoroubred B (166 FSB)
cpu fan: Thermaltake Volcano 7+ (on high speed during summer)
RAM: 1gig of Corsair Dual channel ram 333mhz
Motherboard: MSI K7N2 Delta ILSR (Nforce 2)
Videocard: MSI 5900XT 128megs
Sounds and network card = onboard
Powersupply: Thermaltake 420watts
Pionneer DVD reader
Yamaha 16X10X40
Windows XP Pro sp1
Maxtor ata 133 40gigs 7200rpm
Maxtor ata 133 80gigs 7200rpm
Tower: Lian-li PC-6080

When I put my bios at FSB speed: 166
I play to any games and get dropped to desktop within 10min (Far Cry, Battlefield 1942, need for speed underground, Dark age of camelot, etc- all solo and multiplayer mode-)
I usualy get somekind of lag then get dropped to desktop.

at FSB:133 = samething
at FSB:100 = get dropped to desktop occasionnaly

I have changed my motherboard, cpu and memory for what I listed above. I changed them a year ago to try to solve the problem. I also changed the videocard and powersupply recently

I did a memory test (docmem2) for a full night, I tested both harddrive with maxtor diagnostic tool, and reformated both with low level format, I reinstalled Windows XP with 2 differents CDs (1 xp and the other XP SP1).
I changed the IDE cable for a round cable.

I installed only the latest driver from Nvidia for the nforce and videocard.
DirectX 9.0b

Edit: Forgot to tell that I tried to unplug the 2nd harddrive and the dvd-reader and burner

I tried everything I could think of, and I am really lost as to what is happening
Any suggestions?

Thanks,
Grypht
(sorry if the post seems kind of hectic, because I am doing it with lots of frustration)

[maximus7001]

Re: crash to desktop in every games

Is the volcano7+ plugged into the mobo?

[neomyaclyk]

Re: crash to desktop in every games

That is a quite bizarre problem. Maybe the ram is faulty? I'm almost lost in this one.

[olderphart]

Re: crash to desktop in every games

A volcano 7 on a 2600+? what are your temps full load?

[Bastille Day]

Re: crash to desktop in every games

I have pretty much the same setup, but with a 450 Watt PS and a Thermotake Volcano 11+ HSF and my games are stable.

[wayout44]

Re: crash to desktop in every games

grypht have you tried raising the memory voltage to 2.7-2.8v to see if that will cure your problem plus have you checked the Event Viewer for any red flagged errors?