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7970 Lightning, worth the premium?

CraigN said:
I will try applying my CPU overclock again tonight see what i can do with it.
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Global Thermonuclear War

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These cards came with a rather long black painted crossfire ribbon for those cross firing.

Was a bit fiddly to fit and could only use one of the two crossfire connections due to the 4 slot spacing between my cards and the extra heat sink that makes the ribbon hard to fit.

The wife is out tonight but my room is very hot at present due to living in an 8th floor flat and having a cat meaning i cannot open the windows :( so OC may have to wait till its cooler :P
 
Yay, OCUK confirmed they will be replacing my faulty lightning card... fingers crossed I get a good'un this time haha.
 
core v 1275
1205 core
1600 mem(max)

cant get core higher without artifacting in heaven, upping volts makes kombuster freeze
fan on auto, max temp 62 deg

memory seems like it can give more, how do i push sliders further???? flick switch on card????

pics/screens soon
 
Cleeecooo said:
What was the fault?

No output by any chance?
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Hmm, lets say it definitely had an output... seemed to act more like a heater than a graphics card.

The average performance on kombuster
69w.png


Decides to throttle weirdly

gpuwtf.png


Operating normally...

gpuwtf2.png


Oh wait, no back to normal...

gpuwtf3.png

The fact it did work at the standard temp people get tells me that the heat sink was seated perfectly fine, perhaps some dodgy voltage regulator or something. Though core voltage remained the same, but that is all speculation because ain't no electrical engineer.


Nickolp1974 said:
memory seems like it can give more, how do i push sliders further???? flick switch on card????

pics/screens soon
Click to expand...

Use MSI afterburner and do the "I accept EULA thing"... that still works right?
 
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core stable at 1205, got mem too 1800 but showing artifacts in heaven but not kombuster, seems ok at 1680.
will work on it more when i have more time and a straighter head!!!! (too many ciders now, hard day at work)

time to test bf3 at what i have currently stable, what are max safe volts for this card on air???
 
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