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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1286

post #12851 of 38701
I am ready to buy sapphire 7970 oc but first i want to know if all of these cards have coil whine
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post #12852 of 38701
Quote:
Originally Posted by antonis21 View Post

I am ready to buy sapphire 7970 oc but first i want to know if all of these cards have coil whine

Some do, some don't. Most of them, the coil whine will go away after a while though. Mine had it really bad the first few days, then it just stopped doing it.
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post #12853 of 38701
Hey guys, how do I find my default voltage?
post #12854 of 38701
Quote:
Originally Posted by BobTheChainsaw View Post

Hey guys, how do I find my default voltage?

Load up MSI Afterburner, and then click the "reset" option at the bottom so it'll reset the clocks to stock speed, that'll give you stock voltage.
 
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post #12855 of 38701
Well as is typical of my luck, card number 2 has an ASIC of 65%, stock voltage of 1175mV and can barely hit 1200MHz on air. Same situation as my Lightnings, where one card could do nearly 1300 on air while the second struggled with 1200. mad.gif Neither card has coil whine that I can hear however.

So what should I do for my water setup? Sell off the ASIC 85% or the 65%? I don't really care what they'll do on air, just water. Any suggestions?
post #12856 of 38701
Quote:
Originally Posted by Majin SSJ Eric View Post

So my Sapphire 7970 OC cards come in today and I was looking up pics of the board without the cooler on and noticed the memory is covered by a kind of uni-sink. How am I supposed to install the FC7970 water blocks with this in place? Does it just come off? Anybody have any ideas or experience placing water blocks on this particular card?

They do come off just unscrew them from the back...
post #12857 of 38701
Quote:
Originally Posted by Majin SSJ Eric View Post

Well as is typical of my luck, card number 2 has an ASIC of 65%, stock voltage of 1175mV and can barely hit 1200MHz on air. Same situation as my Lightnings, where one card could do nearly 1300 on air while the second struggled with 1200. mad.gif Neither card has coil whine that I can hear however.
So what should I do for my water setup? Sell off the ASIC 85% or the 65%? I don't really care what they'll do on air, just water. Any suggestions?

Getting @ 1300 card is difficult i would be happy if it can hit 1200 and call it a day, those extra 100mhz for what you need to get them with voltage and heat is not really worth it...
post #12858 of 38701
Quote:
Originally Posted by zGunBLADEz View Post

Getting @ 1300 card is difficult i would be happy if it can hit 1200 and call it a day, those extra 100mhz for what you need to get them with voltage and heat is not really worth it...

I'm going to be water cooling them so heat shouldn't be an issue. I'll be throwing as much voltage at them as I can to hit 1300MHz...
post #12859 of 38701
Quote:
Originally Posted by Majin SSJ Eric View Post

I'm going to be water cooling them so heat shouldn't be an issue. I'll be throwing as much voltage at them as I can to hit 1300MHz...

That sucks man, I hope watercooling yields some better results.
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An Angry Robot
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post #12860 of 38701
Quote:
Originally Posted by Majin SSJ Eric View Post

I'm going to be water cooling them so heat shouldn't be an issue. I'll be throwing as much voltage at them as I can to hit 1300MHz...

The problem is this card with more voltage for 100mhz more dont perform the same as using lower voltages..
You barely going to see a difference on speed..
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