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7970 Overclocking Underwater - Post your achievements.

post #1 of 27
Thread Starter 
Hi guys,
Been playing with the 7970's today with the aim of achievening a stable overclock of both RAM and GPU, I have settled for tonight on the following:

Overclocks:
GPU: 1200mhz - with 1.18V
RAM: 1575mhz at standard voltage.

Temperatures: (Aida 64 stability test 10 mins)
VRM idle: 27c
GPU idle 29c

VRM load: 38C
GPU load: 42C

Would be very interested to know what the rest of you are doing and how your have achieved it. this will not only help us tweak our cards further, but also make a great topic for current and future owners.
Edited by Stu-Crossfire - 3/22/12 at 6:04pm
post #2 of 27
How You get sou low temp on GPU ? My GPU hawe 57°C on full load !

http://postimage.org/image/ctha6ms07/
post #3 of 27
1200/1750 @ 1312mv/1650mv; ~1.25v load on the core

30C/40-42C

EK EN Acetal

Edit: It's not quite stable, gputool will throw one error every few minutes.
Edited by PARTON - 3/23/12 at 6:44am
    
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post #4 of 27

1330/1875@1.3v with temps maxing out @ 44c on my Diamond, My MSI only does like 1250/1600 though @ 1.3v.

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post #5 of 27
Thread Starter 
Quote:
Originally Posted by CyberDeath View Post

How You get sou low temp on GPU ? My GPU hawe 57°C on full load !
http://postimage.org/image/ctha6ms07/

Sounds very high for water mate, i know it sounds daft, but you didnt forget the thermal paste did you? I did on one card, had to take the damn thing apart again. Was VERY annoyed when I remembered. LOL
Quote:
Originally Posted by PARTON View Post

1200/1750 @ 1312mv/1650mv; ~1.25v load on the core

Not sure what you mean there mate, is the 1.25v the systems CPU?
Quote:
Edit: It's not quite stable, gputool will throw one error every few minutes.

GPUTool?
Sounds interesting... Tell me more mate?! smile.gif
post #6 of 27
Quote:
Originally Posted by Stu-Crossfire View Post

Not sure what you mean there mate, is the 1.25v the systems CPU?

1312mv is the setpoint and it droops to ~1250 under full load.
    
CPUMotherboardGraphicsRAM
2600K @ 4.7(1.416v load) Gigabyte P67 UD4 Diamond HD 7970 1250/1800 4 x 4GB Mushkin Blackline 1.35v 
Hard DriveOSMonitorPower
830 256GB & (3) Spinpoint F3's win7 x64 LG W2363D-PF Silverstone DA800 
Case
FT-02B 
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CPUMotherboardGraphicsRAM
2600K @ 4.7(1.416v load) Gigabyte P67 UD4 Diamond HD 7970 1250/1800 4 x 4GB Mushkin Blackline 1.35v 
Hard DriveOSMonitorPower
830 256GB & (3) Spinpoint F3's win7 x64 LG W2363D-PF Silverstone DA800 
Case
FT-02B 
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post #7 of 27
Highest Ive gone stable (gaming and benching) was 1275/1625 with core at 1270mV. Temps 46 top card and 44 bottom. I was able to get to 1320/1625 @ 1.3V, but BF3 (not system) would crash after about 20min. I haven't tried them individually.
Edited by OverSightX - 3/23/12 at 8:49am
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post #8 of 27
I've got 1250 MHz core @ 1.3v and 1800 MHz memory @ 1.7v. 55C max temp in OCCT and 45C max temp in BF3. Idle temps around 29C.
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post #9 of 27
No ... im have thermal paste on GPU , maybe wrong brand ? Its the same on CPU (X6 4.2Ghz). Temp on CPU is 56°C.
post #10 of 27
1370mhz / 1700mhz on my Sapphire and max temp while stress testing is 42c but while gaming never goes above 35c
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