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View Full Version : OCing issues with M4E + 2600K + SLI 460 GTX



Happydude666
06-01-2011, 08:51 PM
Hi everyone,
I recently got and setup my watercooled build with 2 EVGA 460s in SLI, a 2600K and the M4E board along with 8GB (2x 4GB) of G.Skill Reaper X RAM. I am also using a Corsair 850AX PSU (which should give me more than enough power).

The issues I'm coming across are a little odd and not something I can figure out on the own, so I'm coming to you.

I was able to OC my GPUs to EVGA's 'FTW' standard on those cards. While keeping my CPU at stock speeds, I ran all sorts of tests as well as 3DMark Vantage with no issues.

Once I OC the CPU to 4.2GHz (using the auto OC setting in BIOS), the GPUs overheat and can't get through a single test.

So I need some advise on troubleshooting the issue. Is this an issue with a lack of power going to the cards once the CPU uses more?

Let me know what you guys think.

Thank you.

xeromist
06-01-2011, 09:30 PM
Are the GPUs on the same loop as the CPU?

pcjunkie209
06-03-2011, 06:16 AM
As far as I know what X asked would be the only cause for overheating. One loop? How many rads? how is your watercooling setup?

Happydude666
06-03-2011, 03:35 PM
Hey guys,
Sorry for the delayed response. Been busy with all these issues and other things that I completely even forgot I posted the issue here -_-

Anyway, after some extensive testing (taking apart my entire loop and going on air for a little bit, then connecting the loop with individual components, I figured out that one of the GPUs is simply bad. It over heats even at stocks speeds, I just didn't notice (somehow). One of the cards works great, and runs at a cool 38C at 100% load, while the other runs to >80C at heavy load and stock speeds.

I'm just RMAing it.

But to answer your questions:
It is a single loop with a XSPC RX360 rad with 3 Gelid 120 PWM fans.

xeromist
06-03-2011, 04:25 PM
Sounds like that card isn't making good contact with the heat sink. If you can RMA then I guess that's good but you probably could have solved it yourself with repaste and heat sink adjustment if you didn't want to wait.

Happydude666
06-03-2011, 05:52 PM
I did. I replaced the heatsinks on it 3 times. and repasted each time. 2 times with the water block and once with the air. All 3 times, the temps did not improve. I highly doubt it was just a bad contact.

EVGA already approved on RMA on the card, so I'm just going to do it that way.

xeromist
06-03-2011, 06:17 PM
Ah, that sucks. Well at least you tried and at least you can RMA. Hope the next one works out better for you.

Happydude666
06-03-2011, 09:24 PM
Thanks for the suggestions.

Happydude666
06-20-2011, 02:16 PM
It's up and running!!! (Finally) Had to RMA a GPU and reinstall windows about a dozen times to figure out the software conflict issues.

http://www.modsrigs.com/detail.aspx?BuildID=27078

xeromist
06-20-2011, 03:17 PM
Glad it's finally working :)

V2-V3
07-01-2011, 03:36 AM
Good to see you are up and running! Let us know if you have any other questions :D