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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 375

post #3741 of 38704
Quote:
Originally Posted by Cliors View Post

Your voltage is way to low or your temperature is to high
I use 1181 for 1125 mhz
Try 1175 that is the stock voltage as far as i know.
Afterburner says mine is 1112 at stock , i think its a bug .
Also go tot settings and set powertune +20%
I assume you have the latest beta afterburner ?

Quote:
Originally Posted by JustSomeNoob View Post

That is not a bug. There are 4 different default voltages and they depend on the ASIC quality. 1112mV is one of them. In fact, my card is one of the 1112mV cards.

@ Cliors well now i use 1181mV for 1125/1575 and checked option in After Burner for +20% power
I use 2.2.0 Beta 12 After burner (Downloaded yesterday so i guess it's last version)
Temperature with my diagram of fan speed in MSI AFter Burner didn't go over 77C for full load gpu for 4 hours...and at stock settings when i tested temperature was 80C so i guess 77C isn't too much...?

@ JustSomeNoob According to GPU-Z my ASIC quality is 82.7% (is that good or bad)?


Also i played BF3 for like 3 hours and everything runs ok now,just increased voltage from 1100 to 1181 ,highest temperature was 70C, GPU load was 99% for most of time.
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post #3742 of 38704
OK, I have an 750w Corsair power supply, and an i7 2600k over clocked, can I even handle a 7970 upgrade?
And what is the BEST reference 7970 (reference for water-cooling)?
post #3743 of 38704
Quote:
Originally Posted by Dwhite56 View Post

OK, I have an 750w Corsair power supply, and an i7 2600k over clocked, can I even handle a 7970 upgrade?
And what is the BEST reference 7970 (reference for water-cooling)?

Your PSU will work fine for 7970 Crossfire. wink.gif

The BEST reference card...that's a tough choice as they're all reference. Stay away from XFX, no warranty. Sapphire would get my personal vote due to the accessories it comes with. There's also MSI and Asus that are both absolutely solid, and they're warranty is great.
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post #3744 of 38704
Thanks, thats good to know.
post #3745 of 38704
You guys think i'll be fine running 7950 crossfire moderately overclocked with my 2500k also much overclocked including 4 hdds and some minor stuff
on my old corsair 750w psu ? 3-4 years old psu
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post #3746 of 38704
Quote:
Originally Posted by Ottesen View Post

You guys think i'll be fine running 7950 crossfire moderately overclocked with my 2500k also much overclocked including 4 hdds and some minor stuff
on my old corsair 750w psu ? 3-4 years old psu

It should be fine. If you have any issues at all, the PSU will simply shut down. But I doubt that'll be an issue.
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Junkyard
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NAStradamous
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Crucial MX100 256GB WD Green 2TB DVDRW Corsair H50 Push / Pull 
CoolingOSMonitorMonitor
NZXT 120mm fans strapped to stock 7970 cooler Windows 10 Pro Dell 3007WFP Dell 2007FP 
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post #3747 of 38704
Quote:
Originally Posted by GetTheMoney View Post

Yeah, Furmark is useless for stability testing. The only use I have for it is the benchmark feature, which is useful for overclocking the memory clock since you can pick out the exact spot your performance starts to lower.

Yeah, same here. It's a just a quick benchmark program to blow through to get a handle on where you are performance wise before actually stability testing.
post #3748 of 38704
Quote:
Originally Posted by Hexa View Post

Sorry, here were my settings..
338

Definitely something wrong with your setup......
Use a GPU monitoring tool to troubleshoot.

Here's my score with 1200/1700, you should be getting at least 80-90 FPS stock.

480

Try:
Reinstalling drivers.
Re seating cards.
Re applying Crossfire bridge.
Check power supply rails.
Use Afterburner OSD to monitor GPU usage and clocks.
Edited by Denim-187 - 2/11/12 at 11:07pm
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post #3749 of 38704
How do I check the psu rails? Do you mean the cables I use to power then with?

Also MSI always says saya that both GPU's go up to 99% usage..
post #3750 of 38704
Ok sorry for double post but I ran two more tests. One with crossfirex disabled and 1 with crossfire x enabled.

Without
338

With
338

So it's def pretty much doubling my performance but why is it so low in general? I've yet to find any benchmark out on the web that shows 7970 crossfire doing less then 80 fps. This is also with only AAA and not MSAA.

One thing I'm questioning as well, if you look at the one with out crossfire why is it showing GPU#2 as having 100% usage and not GPU#1. I would think if crossfirex was disabled only GPU#1 would have 100%.

One thing I am worred about is my psu. It's modular and I only had 1 cable that is meant for GPU's to use. The other one is powered by the little adapter power cables that come in the video cards box. You know the ones you can use to hook into the numerous 4 pin connectors that most people use for fans and such.

Someone please look over these pics and see what you can do to help me. Maybe I'm paranoid but the performance does not seem right.


**EDIT**

Please God tell me ASIC quality isn't important either. Everyones is in the high 80's. Just checked mine.... 64.6 ?!?! *** dude
Edited by Hexa - 2/11/12 at 11:52pm
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