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GPU down-clocking under load

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Hey everyone, 

 

So a thing I've been noticing while playing games and running benchmarks is that my Gigabyte Windforce 7950 underclocks itself from the original 1000mhz to 900mhz when it gets to 90-100% load. I was wondering if this was common? I am running driver version 13.12 which I believe is the latest driver available.

 

I have researched it and have found that some are saying to up the voltage. But I don't want to possibly damage the card or something along those lines. But if thats what it takes then I'd probably do it. 100mhz is a lot to lose. 

 

Thanks and any help would be appreciated,

 

 

Gabe

 

Edit: 

 

System specs:

 

http://ca.pcpartpicker.com/user/chunksoflemon/saved/2dBX

 

-Removed stock fans and added 3 Corsair af120's and an NZXT sentry 2 fan controller

 

Temps stay around 55-60 degrees at max load

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is it reaching its power limit or temperature limit?

 

edit: also what wattage is your psu?

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PSU?

Selling my parts of my 900D rig for a jacked up Ncase M1. PM me for offers if interested (will take some reasonable-low offers because I'm desperate).

Parts that I'm selling: 900D (1 slot cover broken for stealth DVD drive mod) | Asus Z87 Deluxe | Cooler Master 212 Evo | Corsair 4x2GB black ram @1600mhz | EVGA 1000G2 PSU (2 cables with missing heat shrink) | DVD drive | HP membrane keyboard | Ducky Shine 3 YOTS in blue switches (warranty sticker broken)

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is it reaching its power limit or temperature limit?

 

edit: also what wattage is your psu?

 

My PSU is 600 watts, its a Corsair CX600. I'm running an FX 6300 and 8 gigs of ram, as well as three fans with a fan controller. I don't think that I'm reaching the limit at all

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My PSU is 600 watts, its a Corsair CX600. I'm running an FX 6300 and 8 gigs of ram, as well as three fans with a fan controller. I don't think that I'm reaching the limit at all

 

does the voltage droop under load?

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I just ran valley and checked with gpu-z and yes it does. It goes from 1.250 to 1.125

 

you can try to use afterburner to force constant voltage. you can find it under settings/general. that way you dont actually overclock the card, but keep it at its rated speed.

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unless you overclocked 1000mhz is the boost speed and 900mhz is the clock speed so it's probably just hitting a power limit or even a heat limit. 

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I just tried that but it once again drops voltages

 

are all other compatibilty settings ticked, too?

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Yeah

 

mhm... then your card might me damaged

Personal Build Project "Rained-On"

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I haven't even overclocked it

 

yeah, broken like doa.

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helped building up the CPU Overclocking Database and GPU Overclocking Database, check them out ;)

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In this case it doesn't even matter if you did. It's the factory overclock that's lowering

Selling my parts of my 900D rig for a jacked up Ncase M1. PM me for offers if interested (will take some reasonable-low offers because I'm desperate).

Parts that I'm selling: 900D (1 slot cover broken for stealth DVD drive mod) | Asus Z87 Deluxe | Cooler Master 212 Evo | Corsair 4x2GB black ram @1600mhz | EVGA 1000G2 PSU (2 cables with missing heat shrink) | DVD drive | HP membrane keyboard | Ducky Shine 3 YOTS in blue switches (warranty sticker broken)

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In this case it doesn't even matter if you did. It's the factory overclock that's lowering

 

I know that the core clock is 900mhz and the boost clock is 1000mhz. So what I did was go into afterburner and increase the clock to 1020mhz. But it still often drops down to 900mhz. Is it possible to raise the core clock speed from 900mhz. 

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Gigabyte windforce cards are known to downclock and undervolt. Get lightnings or directcu 2 next time.

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Gigabyte windforce cards are known to downclock and undervolt. Get lightnings or directcu 2 next time.

 

Yeah, as Ive heard. I can probably live with it for the next few months. I can save my pennies. Try to sell it and maybe get a 780 if g-sync is affordable

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Gsync is like over $100 btw...I think $150

Selling my parts of my 900D rig for a jacked up Ncase M1. PM me for offers if interested (will take some reasonable-low offers because I'm desperate).

Parts that I'm selling: 900D (1 slot cover broken for stealth DVD drive mod) | Asus Z87 Deluxe | Cooler Master 212 Evo | Corsair 4x2GB black ram @1600mhz | EVGA 1000G2 PSU (2 cables with missing heat shrink) | DVD drive | HP membrane keyboard | Ducky Shine 3 YOTS in blue switches (warranty sticker broken)

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