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Hands on overclocking watercooled 7970 in X-fire and 3820 for the first time.

post #1 of 4
Thread Starter 
Hi everyone,

This is just a quick one to show you what I managed to achieve and at the same time to get back any of your suggestions.
It took me a year (if you believe or not) to finally get all the components. find some time and put this rig together.

Firstly, let me start with the loop:
XSPC Dual Bay Res w/ Swiftech 655 Pump --> XSPC RX120 Rad w/ Corsair High Performance fan --> XSPC Raystorm --> EK CoolStream XT 360 Rad w/ 3x Scythe Gentle Typhoon 4250rpm --> XFX 7970 BEDD w/ EK Full Blocks, EK Bridge, Back plates --> Aquacomputers Aquero 5 XT --> XSPC Dual Bay Res

Now I played a bit with the GPUs using msiAB and ended up on stable 1300/1650 (1.3V). This lets me run both gpus on unbelievable 45C in Heaven 4-Ultra mode(1080p).

When I tried to push to 1320, it run nicely in Heaven but in 3D Mark it would crash. It would also crash, when I kicked the memory anywhere close to 1700. Here are the X & P results:
X6463
GPU-X.jpg
P15092
GPU-P.jpg

For the sake of conversation, below is the CPU in Prime95.


I am not entirely sure, if the results are ok, so any feedback welcome!
post #2 of 4
not bad. i've seen crossfire 7950s do better, though.

edit: post your best results here if you want . . .

http://www.overclock.net/t/1361939/top-30-3dmark11-score-list-single-dual-tri-quad
Second Intel Rig
(16 items)
 
  
CPUMotherboardGraphicsRAM
2700 4.5/ 1.28 77 290 (2) 16 / 1866 
Hard DriveCoolingOSMonitor
1000 360/240 10 64 28 2160 
PowerCase
850 540 
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Reply
Second Intel Rig
(16 items)
 
  
CPUMotherboardGraphicsRAM
2700 4.5/ 1.28 77 290 (2) 16 / 1866 
Hard DriveCoolingOSMonitor
1000 360/240 10 64 28 2160 
PowerCase
850 540 
  hide details  
Reply
post #3 of 4
Thread Starter 
Had a look at that link and nearly choked.OMG.... Thanks for the reply dude, it looks like I've got a ton of work ahead to reach at least 18K.
post #4 of 4
you might pick up a thing or two here . . .

http://www.overclock.net/t/1265543/the-amd-how-to-thread

don't get fooled by some of those results. the ones on the top used more than watercooling in some cases. ambient will be a big key.
Second Intel Rig
(16 items)
 
  
CPUMotherboardGraphicsRAM
2700 4.5/ 1.28 77 290 (2) 16 / 1866 
Hard DriveCoolingOSMonitor
1000 360/240 10 64 28 2160 
PowerCase
850 540 
  hide details  
Reply
Second Intel Rig
(16 items)
 
  
CPUMotherboardGraphicsRAM
2700 4.5/ 1.28 77 290 (2) 16 / 1866 
Hard DriveCoolingOSMonitor
1000 360/240 10 64 28 2160 
PowerCase
850 540 
  hide details  
Reply
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Overclock.net › Forums › Graphics Cards › AMD/ATI › Hands on overclocking watercooled 7970 in X-fire and 3820 for the first time.