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Belial's Comprehensive Guide to 7950s! - Page 22

post #211 of 311
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Okay playing around a bit with my gigabyte 7950 (old version).

First off, yea, the Gigabyte heatink is way worse than the Dual-X lol. On open air case, it's about 10C worse at least than the Dual-X, and it's insanely loud. Way louder than the Dual-X is at 100%.

This is comparing both at 100% fan speeds, 1050mhz@1.149v, 1600mhz VRAM, 50 power limit mod, occt error test. If anything the gigabyte has a more generous test setting.

The VRMs didnt appear to get as hot as the dual-x though, interestingly enough (different pcb, it uses ref pcb i believe instead of cheapo, but no vrm sinks).

god its loud.
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post #212 of 311
Quote:
Originally Posted by mandrix View Post

I just found this post......I recently sold 2x PowerColor 7950's, and just bought 2x more. This time around I bought the 2DHV4's, I actually have 3 since one is in my "backup" rig.

I just put the EK blocks/backplates on today and did not know about the different memory types or I would have looked just out of curiousity.

My first 7950 was a PowerColor -2DH and was a massively great overclocker. I eventually added a 2DHPP in Xfire and both were water cooled and pulled some good 3DMark11 scores.

Although I haven't messed with the 2DHV4 much yet I don't believe they will perform as well as my earlier ones.....but that's OK, the price was right.
Glad to see the 7950's getting some love. Mine have done all I needed them to do.

I have never bought a bad powercolor card. the last one i bought (an hd 6850 pcs+) ran/runs great and cool, even when xfired with my his 6790. the non iceq 6790 died from heat even with a gelid cooler installed. now that 6850 is OCed on my sons gaming pc and still running strong. when i replace my recently sold iceq 7950 i will likely get a 2DHV4 or another iceq ... gaming is all i really do aside from trying different linux distros.
post #213 of 311
Quote:
Originally Posted by SulumorDNA View Post

I have never bought a bad powercolor card. the last one i bought (an hd 6850 pcs+) ran/runs great and cool, even when xfired with my his 6790. the non iceq 6790 died from heat even with a gelid cooler installed. now that 6850 is OCed on my sons gaming pc and still running strong. when i replace my recently sold iceq 7950 i will likely get a 2DHV4 or another iceq ... gaming is all i really do aside from trying different linux distros.
Good to hear. I've got the other two 2DHV4's up and running now on a new Z87 board. Soon I'll max them out and see how they will do.
post #214 of 311
This guide is great and really useful, but I couple of months ago I bought a Sapphire Vapor X 7950 w/ boost and OC. It came with hynix memory, was voltage unlocked (meaning i could change the volts on AB), and temps were fairly good (60 on load in case, 55c on load open test bench) (although I am working on the "mod" right now). So, some of the info you posted is slightly incorrect, for the Vapor X at least. I have not checked VRM temps tho.
*EDIT* another thing was that it was 8+8 power design.
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post #215 of 311
I just picked up 2 TFIII 7950s from Microcenter for $215/ea and they seem to be the 7970 PCB (8-pin and 6-pin)

The only issue I'm having is Afterburner doesn't seem to want to let me change any voltages on the cards, I thought they were supposed to be voltage unlocked?
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post #216 of 311
Nice snag! You may have to enable voltage control in the Afterburner settings.
post #217 of 311
Quote:
Originally Posted by Snuckie7 View Post

Nice snag! You may have to enable voltage control in the Afterburner settings.

I've tried messing with that and the .ini but I'm going to try a re-install and see if that does it. I was actually considering a GTX770 when I went in but these we almost the same price. Nothing could even come close to touching them @ $430.
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post #218 of 311
Quote:
Originally Posted by FallenFaux View Post

I just picked up 2 TFIII 7950s from Microcenter for $215/ea and they seem to be the 7970 PCB (8-pin and 6-pin)

The only issue I'm having is Afterburner doesn't seem to want to let me change any voltages on the cards, I thought they were supposed to be voltage unlocked?
Think the only one that's voltage unlocked is the lightning 7970. The TF 7950 is on a reference 7970 pcb though.
post #219 of 311
Quote:
Originally Posted by bond32 View Post

Think the only one that's voltage unlocked is the lightning 7970. The TF 7950 is on a reference 7970 pcb though.

Well I just realized that i'm able to change the voltage on one of my cards, but not the other. Same exact model number and BIOS... So now I'm really stumped.


Ah, I fixed it. Turned out that one card was stuck in UPLS mode.
Edited by FallenFaux - 8/15/13 at 12:58am
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post #220 of 311
Tried to take this seriously after the first few pages but just couldn't after you tried to defend this



Bottom left card can be found here.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814127212
Edited by EpiDx - 8/22/13 at 5:48am
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