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Help with my new 290X

post #1 of 5
Thread Starter 
Hey all,

I've been on team green since I upgraded from the first gen Radeon to a GF2. Now I find myself as the proud owner of a 290X and I'm finding that I have a distinct lack of knowledge in overclocking this card that I'm hoping you all can shed some light upon.

The primary issue I'm having is that tolerance for OCing seems to be incredibly poor, and that an OC failure leads to a system freeze. When I had an OC failure on my nvidia cards, the driver would crash and recover and I wouldn't have to reboot.

The first thing I did after receiving this card was to pop it in, do some benching and make sure the GPU was healthy. After that was established, I slapped my Dwood bracket and Kuhler 620 on it along with some ramsinks. I do not have any VRM cooling on VRM1 at the moment and believe this to be at least part of my problem.

I don't want to fill this thread with images and content if my experience is predictable-- my first question before I really dig in here is this:

With the OEM shroud on the card, what would you expect it to reach without issue? What are the VRM temps you would predict would lead to imminent failure? Using OverDrive in CCC, what Power Limit settings are your max?


I know this is an open-ended series of questions, but I'm trying to baseline my experience before I launch into "why isnt my 290x performing like I think it should?"

/edit: Updated sigrig to include 290X
Edited by eskaryo - 4/16/14 at 6:59pm
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post #2 of 5
You probably aren't going to find as high a core clock with AMD as with Nvidia. 1150-1200mhz core on water should be attainable. 1200+ if you have a decent example and 1250+ with a great example. Definitely need to cool both vrm1 and vrm2. Whether it be a fan with passive heatsinks or full coverage block. The first step is to read the threads pertaining to 290X. wink.gif
    
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post #3 of 5
Thread Starter 
Quote:
Originally Posted by hotrod717 View Post

The first step is to read the threads pertaining to 290X. wink.gif

Information ad nauseum! There is quite a bit to go through-- several thousand pages which are as a majority, unhelpful.
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post #4 of 5
Without any VRM cooling, I recommend you stop OC'ing (or even running stock clocks) unless you don't care about your card.

VRM circuitry can take a lot of abuse (+100c) for long durations, but many cards died because of poor VRM cooling.

That being said, the 290X doesn't OC as much as older AMD cards not because of high temps, but due to the lack of voltage control.

Don't expect anything higher than 1200MHz on the core, 1100MHz is more realistic at stock volts.

Power limit should be maxed at 50%, even on stock clocks, to ensure the core stays at the desired speed without fluctuations.
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post #5 of 5
Thread Starter 
Quote:
Originally Posted by eXXon View Post

Without any VRM cooling, I recommend you stop OC'ing (or even running stock clocks) unless you don't care about your card.

VRM circuitry can take a lot of abuse (+100c) for long durations, but many cards died because of poor VRM cooling.

I'm keeping an eye on the temps. I've been gaming for the last 2 hours and my vrms are at 43/58 respectively. Just playing D3 at the moment though, so there isn't much demand to speak of. Thank you for the heads up - I'm getting ready to sort out some sort of cooling device for vrm1. VRM2 has a 50+cfm fan blowing down on it so it's all good.
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