New Daddy PC Rebooting - No BSOD/Logs on Asus A8N-Sli Deluxe/1GBCorsair/GF7800GT-E

XUniSol

XUniSol

XUniSol

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5 Feb 2006
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10
Thundercats Ho!

I've purchased some sweet PC hardware and assembled as normal, but when in graphically intense games - it reboots with no BSOD, nothing in any logs. The screen loses its signal and the system goes into a coma after which some times it will boot back up itself.

I played World of Warcraft for 5 hours on Max details to join the Battleground and the PC reboot after 5 mins, Call of Duty 2 reboots after approx 5 seconds on max settings.

Motherboard: Asus A8N-SLi Deluxe DDR400 NF4-SLi PCI-E SATAII Dual Raid 5 2xGbE Lan NV F'Wall USB2/1394 8ch Audio

Memory: 1Gb Corsair DDR400/PC3200 128Mx64non-ECC 184 DIMM, unbuffered, CL2, PRO series, L/T Warranty

CPU: AMD Athlon 64 3200 32/64Bit CPU S939 "Venice" 90nm OEM

GFX: 256MB XFX PCI-E *Extreme* GF7800GT *450 Core 1.05Ghz Mem* (256bit) ViVo 2xDVI

HDD: 120Gb SATA300 Western Digital WD1200JS Caviar SE (7200rpm,8Mb) - NCQ

PSU: 500w Seasonic S12-500 SLi aPFC PSU Silent ATX2.0 2xPCI-E 4xSATA ATX12v-1.3 & ATX12v 2.01

All motherboard lights are green, all temperature and fan sensors are reading good and cool (even the GFX card temperature is way below warning threshold). Tried about 4 different CAS memory timings as I found a post regarding the same issue. Customised all BIOS/CMOS - Reset BIOS/CMOS. Installed latest BIOS update and Chipset/GFX files/drivers.

What do we think then? no BSOD - so it's not software/drivers. PSU? or Memory?

Thanks

Uni
 
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Just running MEMTEST now, could you recommend any others? Over the years I've drifted away from overclocking/benmarking.

Cheers
 
Prime95 ran OK
OCCT ran OK
Downloading 3DMark2006 (600Mb)
Memtest ran OK for 15 minutes

I swapped out the 1Gb stick for 2x 256Mb PC3200 I had spare and it still crashed. The memory timings are on Auto, and have chosen Cas3 which is fine for the older memory.

Any ideas? could it be when GFX card is using all it's power it drains the power causing a reboot (500W PSU)?
 
As you can see, I have the ATX connecter connected, the GFX card AUX power and the Asus EZ_PLUG connected. I've tried with and without the EZ_PLUG as it says you must use it for SLi mode.



:( Would like to get this closed so I can ring tomorrow and ask for a new part.
 
Nope, AsusProbe reports everything OK, from fans, voltages and temps.

I'll run WoW/CoD2 in Window mode and watch the GFX temp in the nVidia Console.
 
OK, I'm in World of Warcraft - Maxed settings and windowed mode.

Temps: CPU 40C CASE 38C GFX 50C
Voltages: 12V 11.968 5V 4.919 3.3V 3.296 VCore 1.408

I'll give CoD2 (crasher) a go.

EDIT: Only 732/1024 memory used.
 
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Got it too run COD for about 3 minutes, under 800Mb of memory used, the only difference to above is the GFX Temp went up too about 60C (that I last saw)
 
3DMark06 is spectacular!

Shame it crashed on about the 5th/6th test, I turn my head away for a second and it had gone down - didn't get to see if it had ended.

Tried disabling onboard Nvida LAN and Sound too, no luck
 
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