LinX stable, start game = crash

[EarthwormJim]

The timings are very loose 6.6.6.18 at 400fsb or 800Mhz

There is no overclock on anything (cpu, gpu, ram, pci-e, etc)

No blue screens, just rebooting.

It's liquid cooled, the cpu has never been abused. The ram is stable at 500fsb (extensive testing) & I've tested the hell out of the subsystem. And I have an active fan over the NB HS

I have a UD3P on the way to cross check the mb.

Oh I didn't follow that you were at stock speeds.

Did you uncheck the option in windows to automatically restart on a system failure? I've had system failures (BSOD) that reboot so fast you don't even see the blue screen itself unless that option was unchecked.

I'm assuming you're monitoring temperatures, nothing is out of line in that area?

You seem to have quite a few systems, so you can swap out the PSU I assume to eliminate it as other's suggested it may be the PSU.
Do you have a DIMM to measure your PSU voltages?

 

[BTRY B 529th FA BN]

can u check to see if your pump is on?

I would guess the pump is on and working fine. I always check to see if the turbine is spinning; plus it's noticeable audibly. Water level is good.

The temps are fine - great in-fact.

Thanks again btw for helping with the loop setup.

I've actually had one of the 950w Revos in this system before. It's now in Rig3 and running flawless so deductive logic tells me it's not the new PSU but atst (at the same time) doesn't rule it out.

I am getting funny readings from Hardware Monitor with drops that would obviously cause the entire system to crash. Stuff like the 3.3v dropping to .028 The DDR2 dropping to .013 awa other drops, with the system still being functional. I am thinking the motherboard is failing rather than the PSU because if the motherboard was fine, it would be able to handle even a slight overclock. Another example that leads me to think mb failure, and this is subjected for discussion, is even trying to run the cpu at it's rated speed by a lower multi like 6 x 475 at my recent stable sub-system settings, it won't boot.

Also, I am not going to test the Seasonic on a different system for fear of potentially screwing another system so if the problem persists with this new UD3P P45 board I'll know to RMA the PSU as well.

 

[MyLeftNut]

I've ran 20 passes of LinX without fail, opened up UT3 and just as I click to join a server my machine will crash. I set all my bios to default/stock clocks and joining a server works. :hmm:

Sounds like NB instability or motherboard. Happened to me with a P965 board; I had to bump up NB volts a few notches for stability until one day it just couldn't maintain it anymore. Replaced it with X38 board and it's been running fine for more than 2 years.

 

[BTRY B 529th FA BN]

Yup, that's my guess as well. I have a new Gigabyte UD3P board coming in on Wed and this will help shed light on the situation

 

[BTRY B 529th FA BN]

The new board is good. It's uncovering an unstable CPU and RAM. Gonna pick up some cheap DDR2 800 1.8v CL4 which is on the qualified vendor list (like that matters) and possibly a new chip.