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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 242

post #2411 of 38704
Quote:
Originally Posted by jamborhgini313 View Post

I got a weird error. I just launched heaven, it crashed while in crossfire mode. I tried again and a message popped up saying out of memory and cannot set to full resolution then a downsized heaven version pops up. After a couple of seconds, I get BSOD and before I can even look at the message my computer reboots. I tried BF3, same thing. Tried Crysis Warhead benchmark and it ran untill the 3rd run which then the driver crashed and it kept crashing untill my screen turned black. I've already formatted my SSD's, installed clean drivers and the CAP stuff and yet it's still the same bull**** before I wiped. Right now, all I wanna say is **** AMD.

AMD has nothing to do with this... This simply means your overclock is unstable thumb.gif

Also...
Crossfire users....... ULPS has to be DISABLED guys, no work around. Your secondary card is not to enter zero core if you have modified your voltage. On the contrary, primary card is ok to zero core when display is switched off when idling.

1. Start>Write Regedit>Start Regedit.
2. Press CTRL+F then search for EnableULPS, doubleclick on it change it from "1" to "0". Ok. Or
Disabling ULPS can be done by opening regedit and going to [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Cl ass\{4D36E968-E325-11CE-BFC1-08002BE10318}]
3. You can also check on the EnableCrossfire above that its got data 1. If not change this, restart the computer.

Having zero core enabled on the slave card after voltage modification results in hard locks and "driver stopped responding" errors.
Edited by Denim-187 - 1/28/12 at 12:44am
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post #2412 of 38704
Hey guys quick question. After looking at several overclocking tools I really like how Gpu Tweak from Asus automatically changes voltage when the core clock is increased. I don't believe Msi Afterburner has this correct? Also I really like how afterburner has the on screen display. Is there anyway to use the on screen display of afterburner without using it to control your cards or are you stuck with afterburner as your oc tool?
 
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post #2413 of 38704
Quote:
Originally Posted by rcfc89 View Post

Hey guys quick question. After looking at several overclocking tools I really like how Gpu Tweak from Asus automatically changes voltage when the core clock is increased. I don't believe Msi Afterburner has this correct? Also I really like how afterburner has the on screen display. Is there anyway to use the on screen display of afterburner without using it to control your cards or are you stuck with afterburner as your oc tool?

The linked voltage change in Asus GPU tweak is far from reliable, i would avoid this at all costs. thumb.gif
But if you should know, you can have both running if u like.
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post #2414 of 38704
Quote:
Originally Posted by Denim-187 View Post

The linked voltage change in Asus GPU tweak is far from reliable, i would avoid this at all costs. thumb.gif
But if you should know, you can have both running if u like.

Thanks for the help. I'm looking at the new Asus http://usa.asus.com/Graphics_Cards/AMD_Series/HD7970DC2T3GD5/ as far as using any tool to oc what is a safe voltage for lets say 1250mhz? Or is it a crap shoot where I must raise it a little then test etc? Thinking since there asus cards I'll use tweak to oc and monitor gpu usage and get fraps for fps display.
 
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post #2415 of 38704
Quote:
Originally Posted by rcfc89 View Post

Thanks for the help. I'm looking at the new Asus http://usa.asus.com/Graphics_Cards/AMD_Series/HD7970DC2T3GD5/ as far as using any tool to oc what is a safe voltage for lets say 1250mhz? Or is it a crap shoot where I must raise it a little then test etc? Thinking since there asus cards I'll use tweak to oc and monitor gpu usage and get fraps for fps display.

At the moment, the limit in the uttilities is 1.3v but not all of that applies to the card. If you can get your card to 1250mhz you will need to set it to 1.3v forsure.
Its hard to say at this stage what the safest max voltage is especially cause these chips are a die shrink fabrication but i personally wouldn't go over 1.25v for a 24/7 overclock.
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post #2416 of 38704
Quote:
Originally Posted by Balsagna View Post

Looking at the names list.
There's only me and one other person with an HIS version. Makes me sad a bit -- The only thing I really hate about the 7970 is how freaking loud it is. I can't even stand it at 50% fan speed.
And I have a 2nd one coming on the way. Looks like I'll be upgrading my water loop and getting those 2 on water sometime soon thumb.gif
I'll have to wait till I get back from basic training though mad.gif

Don't be sad, 1230/1700 I have on air and just put it under water yesterday. Will see if will go further this weekend.
post #2417 of 38704
Quote:
Originally Posted by Denim-187 View Post

u need to use -fs
atiflash.exe -fs -p 0 (bios name.bin)

Well I ended up flashing in windows atiwinflash in cmd. I pretty much had no choice. Booting to DOS with -i it was only seeing 2 of my cypress cards and refused to see tahiti. But -i in cmd saw all three cards. All three cards are in a water loop together and cypress cards are for folding. So there was no way I wanted to break my loop just to flash. So I went with in windows flash all seems solid though.

Anyone know why dos only sees the cypress cards ?
I used atiflah 3.8.9.
 
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post #2418 of 38704
Quote:
Originally Posted by Denim-187 View Post

At the moment, the limit in the uttilities is 1.3v but not all of that applies to the card. If you can get your card to 1250mhz you will need to set it to 1.3v forsure.
Its hard to say at this stage what the safest max voltage is especially cause these chips are a die shrink fabrication but i personally wouldn't go over 1.25v for a 24/7 overclock.

According to this review they were able to easily get a stable card at 1220mhz. Makes you think with this better fan profile and heat sink that 1250 should be attainable. http://www.legitreviews.com/article/1839/1/
 
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post #2419 of 38704
So I just started benching my 7950. I flashed it with the ASUS 7970 BIOS and it is working great.
Here are some of the first results.
I am using the stock cooler in my open tech bench.
Highest temp was 89c on the last run.
I stopped at 1100 but the ASUS OC tool will let me go much much higher. I'll have to keep the temps in check when i go further.
I'll run some more tests later, I'm going to play some games with it now.


Stock speeds with 7950 BIOS
700

Stock speeds with 7970 BIOS
700

1000 / 1400
700

1050 / 1450
700

1100 / 1500
700


Please let me know how this compares to the 7970's that are around.
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post #2420 of 38704
Quote:
Originally Posted by sockpirate View Post

Yeah i made sure, what would you guys reccomend on thermal paste application X or dot in center? I followed the EK instructions and did an X. I also put thermal paste on each area that required a thermal ppad like EK suggested.
Well i also just switched out motherboards, i took my M4E out from under the rice and it actually boots up and seems fine, compared the the other mobo, now i am idling at mid 40s ? Gonna run a heaven run and see what temps are like. CrossfireX is also working with my M4E.
Edit: Hmm temps were still bad. Gonna take the blocks off and see whats going on...


Are you sure you don't have any big bubbles that weren't bled yet? Either your block are not making proper contact or there's air somewhere in your loop.
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