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7970 undervolting - best tool?

F

farse

n00b
Joined
Jan 22, 2012
Messages
4
Hi
I'm running grid projects on an HIS 7970 24/7 and have it at the max settings in the CCC performance panel (1125MHz), but to bring temps down was wondering if anyone had any advice about the best tool to undervolt it (while being overclocked)? It's the thermals that are the issue for me, I'm happy with 1125 but want to see if I can drop it's temp down in case there is a really hot day and I'm not around to check up on it.
tia
 
MSI Afterburner Beta 11 is what I use.

Make sure to set UnofficialOverclockingMode = 2 in the config file and 'Unlock Voltage Control' in the settings.
 
Thanks I'll give it a go. I tried trixx but at the min voltage setting it's actually running higher temps than whatever it was at stock - not impressed...

Will try after burner - ta
 
When I say "stock" I mean the same overclock using the stock amd ccc tool = 1125
 
I've got a stock voltage of 1.112v which runs at 1000/1425 and I've tried to downvolt to 1.075v using MSI AB but everytime after booting the PC my voltage is 1.093v. This difference between these voltages made a 1-2c difference at 60% fans speed under load when testing furmark and the same in other games.
 
Yeh now I know why trixx bumped up the temp as soon as I ran it, I've got a lower voltage bin 1.05 and it set it to higher.

Afterburner let me drop voltage down to 1.03, was still running 1125 happily but temps stayed the same so I just left it at 1.05. No point in me trying for > 1125 cause on hot days when trixx had upped voltage it was running at 93degrees (and freaking noisy fan speed), now it's sitting at 82degrees + 50% fan which is less than other noise around here - i'm happy with that for 24/7 running.
 
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