MSI R7950 OC Twin Frozr - Temps/Fan Speed

JJ24

Member
Jul 27, 2007
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What kind of temps should this card be running?

It came stock at 880Mhz Core / 1250Mhz Memory
I OC'd to 925 Core / 1250 Mem on the stock voltage. (will probably push more just testing it out)

I installed MSI Afterburner and turned on Voltage monitoring
Stock voltage seems to be 1.081 max and drops down to 0.949 when it clocks down to only 500Mhz core.

When playing games (Just World of Tanks and SWTOR so far) the Temp hovers around 64-66C but the fan speed is only at like 47-49%... I've never seen fan speed go above 50%. I manually set the fan to 60% and the temps dropped to the mid 50's in those same games...


Edit:
While sitting here typing in forums it dropps down to 45C with Fanspeed at 36%

Should the Auto fan be doing better or is it okay to sit at 65 degrees all the time in games with fan at only 49%
 

Stuka87

Diamond Member
Dec 10, 2010
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Some makers try to keep their cards quiet. Being in the mid 60's is not going to hurt your card.

How well does your case cool? I have a Sapphire 7950 OC and have it clocked to 1100 and it runs under load in the mid 50's. The cooling of the two cards should be similar. But my case moves a lot of air.

You can set your fan higher as you tried if you are ok with the noise.
 

Dankk

Diamond Member
Jul 7, 2008
5,558
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If your card is ~65 degrees under load, then you're sitting pretty. As mentioned above, mid-60's is a perfectly healthy temperature for your GPU (under load). You could go into the 70's and still be fine.

I'd keep the default auto fan settings. Only increase fan speed if you're absolutely bent on keeping the card as cool as possible, and you don't mind the extra noise.
 

JJ24

Member
Jul 27, 2007
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I dont have all my case fans yet (slow super saver shipping from Amazon) right now just a 2x120mm in front and 1x120mm exhaust... I have a couple more coming... going to do 1 on side and 1 on top...
 

MrK6

Diamond Member
Aug 9, 2004
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The Twin Frozr cooler is pretty beefy. As others said, 65C under load is fantastic, keep pushing the card. :thumbsup:
 

raghu78

Diamond Member
Aug 23, 2012
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get your card to 1100 - 1150 mhz with a bit of voltage tweaking and match HD 7970 Ghz performance. you card can easily hit those speeds. :thumbsup:

set a custom fan profile in msi afterburner. use GPU-Z or HWinfo32 to monitor core and VRM temps. try and keep core temps below 70c and VRM temps below 90c.
 

lilvaratep

Member
Nov 19, 2012
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my stock voltage is 993mV... wtheck is the difference here? Should I be pushing my stock voltage? I can only get about 1025mhz/1350mhz on it at 993mV with 64c max under load for hours (bf3, starcraft2, league of legends, and others)
 

raghu78

Diamond Member
Aug 23, 2012
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my stock voltage is 993mV... wtheck is the difference here? Should I be pushing my stock voltage? I can only get about 1025mhz/1350mhz on it at 993mV with 64c max under load for hours (bf3, starcraft2, league of legends, and others)

with a bit of voltage tweaking you can hit 1125 to 1150 mhz. try 1.05v and then 1.1v. setup a custom fan profile which would keep temps in safe range.

an example custom fan profile . 50c and below - 30% fan speed, 60c - 50%, 70c - 70%, 80c - 90%

try and find a a good balance of voltage, core clocks, temps and fan speed/noise :thumbsup:
 

coxodoina

Junior Member
Jan 14, 2013
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Only increase fan speed if you're absolutely bent on keeping the card as cool as possible
a14
 

JJ24

Member
Jul 27, 2007
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Created a custom fan profile using MSI Afterburner to keep my card in the low 60's...

OC'd to 1000mhz Core / 1350 Memory @ 1.081v

Using the MSI AB and GPUZ to monitor temps the core stays around 63-65 playing some games (Not any of the super hardcore games tho) like World of Tanks, Guildwars2, SWTOR. Ran the Ungine Heaven 3.0 benchmark and it got upto about 68c (if I can remember right). The VRAM Temp seems to follow the same temps as the GPU temp but 2-3 higher. So if GPU is showing 65 VRM temp is 68... And its stayed very consistent.


As far as stress testing/stability what can I do besides the Heaven 3.0 or the games I've been using... I dont have BF3, Crysis, or any of the games I seem commonly mentioned as good stress testing...

Anyone know what a safe voltage is for this card? I would assume you could goto at least 1.150 or 1.200 but want to be sure?

For the record, my ASIC score acording to GPUz is 86%
 

3DVagabond

Lifer
Aug 10, 2009
11,951
204
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The 7950 boost standard is 1.25v. So that would be perfectly safe. IIRC Baumann said anything less than 1.35v was fine for Tahiti. Too much voltage though and you need to crank the fans up too much to be comfortable.

This is thermal imaging for a reference 7970 from Behardware. So, ~80c is obviously fine. I've seen VRM's on current gen cards from both companies pushing 100c.
IMG0034619.png
 

JJ24

Member
Jul 27, 2007
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Mine is the 7970 PCB because it has the 6pin and 8pin power connectors...

And while I've seen some negative reviews on poor TIM application from the factory for some of these MSI Cards mine seems to be fine judging by the temps I am seeing.

I'd be happy with around 1100 Core / 1400 Memory I think... That puts the 7950 on level of a 7970 as far as performance from what I've been reading elsewhere.
 

JJ24

Member
Jul 27, 2007
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Just had some weird artifacts appearing in World of Tanks and I had not changed any settings from what I was running at all weekend... The only difference is that I had GPUZ open to its "Sensors" tab on the 2nd monitor.

I closed that out and the artifacts went away. Weird... Didnt notice that before, something about refreshing GPUz sensors while in the game was making artifacts apparently.