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HD 7850 "Goliath" V2

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Don Karnage said:
1.21v should be enough for 1200 core. Hmm... Thats a lot more voltage then mine does at stock.
Click to expand...
That should be my stock voltage.


I'm wondering wether my driver clean up routine failed miserably.


or..got a dud.


Having trouble running 3dmark as well....should redo directx probably.
 
MisterMac said:
That should be my stock voltage.


I'm wondering wether my driver clean up routine failed miserably.


or..got a dud.


Having trouble running 3dmark as well....should redo directx probably.
Click to expand...

7850 is just a failed 7870 so you might have had a dud. Up the voltage
 
like i mentioned in the other thread, my sapphire 7850 non-oc ed. would only do 1125 stable up to 1.225 volts

stock voltage was 1.210

sending it back and will probably pick up a 670 for a nice price premium, but hey, i'm worth it 🙂
 
DeeJayeS said:
like i mentioned in the other thread, my sapphire 7850 non-oc ed. would only do 1125 stable up to 1.225 volts

stock voltage was 1.210

sending it back and will probably pick up a 670 for a nice price premium, but hey, i'm worth it 🙂
Click to expand...

I want to go Xfire but the drivers are just plain garbage
 
Well i have a dud.

Following deejayes example most likely.


Having trouble with 3dmark and unigine tho.
And DX11... could this be it?

PS:

Early v ersions of asus gpu tweak or?
using latest .83 one.
 
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MisterMac said:
Well i have a dud.

Following deejayes example most likely.


Having trouble with 3dmark and unigine tho.
And DX11... could this be it?

PS:

Early v ersions of asus gpu tweak or?
using latest .83 one.
Click to expand...
Mine is a bit of a dud as well. All I can do is 1180mhz at 1.225v.
 
What are your guys's ASIC quality as measured by GPU-Z? I only briefly tested mine for undervolting but I know it struggled to be stable beyond ~1080MHz or so, at 1.075 volts. ASIC quality was given by GPU-Z as 85.6%. I hear that the lower your quality, the better it responds to more voltage. The higher the quality, the better it undervolts.
 
blastingcap said:
What are your guys's ASIC quality as measured by GPU-Z? I only briefly tested mine for undervolting but I know it struggled to be stable beyond ~1080MHz or so, at 1.075 volts. ASIC quality was given by GPU-Z as 85.6%. I hear that the lower your quality, the better it responds to more voltage. The higher the quality, the better it undervolts.
Click to expand...

How do you test ASIC quality?
 
Don Karnage said:
76.4% here. Thanks Blasting
Click to expand...

No problem. If GPU-z is accurate you have a decent chip so I wouldn't call it a dud. It's actually better to have a lower % if you're cranking up voltage under water, from what I understand, so I think you're just at the physics limit of the chip. I mean, you don't expect a 2500k to clock to 6GHz no matter the voltage, right? Same thing here. Just because a few people can hit 1300 doesn't mean everyone can. 🙂
 
Meghan54 said:
So it's bad that my 7970 shows a 65.5% in GPU-Z?
Click to expand...

If I'm interpreting it right, it means that it's a high leakage part that requires more voltage to hit stock clocks and does worse with air cooling. However it should also clock up well with additional voltage, which you will want to cool down with water cooling. (The reverse, a high ASIC %, means it won't take as much voltage to hit stock clocks and is better for undervolting, too. But it also doesn't benefit as much from overvolting.)
 
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1300 core BABY!!!!!
1300core.png


You guys were right. It was the VRM's overheating. I have two CM 60cfm fans an inch away from the pcb blowing air across it and that seemed to do the trick.

I'll upload the screenshot as soon as photobucket stops being a douche
 
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