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post #61 of 106
Thread Starter 
Quote:
Originally Posted by tsm106 View Post

It`s the same thing.

Hmm.. I don't think it is though. GHz cards have a "GHz Edition" written behind the names or somewhere. But mine doesn't :/

My 7970 OC w/ Boost:
http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1157&lid=1&pid=1481&leg=0

Sapphire 7970 Vapor-X GHz Edition:
http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1157&lid=1&pid=1679&leg=0

Sapphire 7970 Toxic Vapor-X GHz Edition:
http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1157&lid=1&pid=1679&leg=0

MSI Lightning R7970:
http://www.msi.com/product/vga/R7970-Lightning.html#?div=Specification (Under Specifications)
post #62 of 106
Quote:
Originally Posted by GabrielQ View Post

Well damn, setting memory clock to stock didn't help. I still get tons of artifacts running GPU clock at 1200 with 1.35v. But just to be sure, artifacts are little blinking spots and flickering lines on the screen right?

Also, I've noticed something odd. Thought I've set voltage to 1.35v, GPU-Z only shows 1.08v - 1.125v or so when running FurMark. Is that inaccurate? Or is my voltage actually locked?


set vddc to max, if its 1.125 you're surely voltage locked... try a bios flash to a non boost bios, stock clocks are irrelavant if you're overclocking tongue.gif

also, look at gunblades testing on the 7950/70 club, his testing and my expericences show these chips are temp limited, but i still think you wont reach that limit witth a locked bios
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post #63 of 106
Man... too much effort to argue about being wrong dude. Ghz is boost. The boost function = ghz boost. It`s not the clock speeds its that the core speed does what? It BOOSTS!
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post #64 of 106
I have a bunch of 7970s. Some of them are really bad like 50.4% and some are 86.3%. They all pretty much work the same.
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post #65 of 106
Thread Starter 
Okay, I've just downloaded TriXX 4.6 and I this time I tried 1200/1425 @1.25v. I turned on the "Force Constant Voltage" setting and let it run for awhile. I noticed something really odd.. When it is in 2D/idle mode, the volts is at 1.244v. But the moment I start FurMark, it drops to 1.1v+? And I'll be getting little blinking spots of artifacts around the "doughnut".


Idle/2D mode:


While on load:



What's going on? eh-smiley.gif
post #66 of 106
lol I give up.
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post #67 of 106
Thread Starter 
Quote:
Originally Posted by tsm106 View Post

Man... too much effort to argue about being wrong dude. Ghz is boost. The boost function = ghz boost. It`s not the clock speeds its that the core speed does what? It BOOSTS!

Ahh alright alright if you say so! But hmm actually I think I kinda get what you're saying. Since the GHz chips are practically the same chips except further factory overclocked am I right?
post #68 of 106
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Quote:
Originally Posted by tsm106 View Post

lol I give up.

Nooo ohno-smiley.gif
post #69 of 106
Your card is working as expected. It drops to 1.1v because of vdroop. Furmark is a power virus and it will cause massive vdroop. I suggest not to use furmark.

Try a game or something in windowed mode. Also can you actually adjust voltage from 1.25v, either up or down?
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post #70 of 106
Thread Starter 
Quote:
Originally Posted by Falkentyne View Post

Your card is working as expected. It drops to 1.1v because of vdroop. Furmark is a power virus and it will cause massive vdroop. I suggest not to use furmark.

Try a game or something in windowed mode. Also can you actually adjust voltage from 1.25v, either up or down?

But surely vdroop can't be that much? Well I tried Heaven Bench and now I have new problems.. clocks were permanantly stuck at 500/150. Had to restart several times before it went back to normal.

Also, I just realized I have some permanant green artifacts running vertically down and covering half my screen. It makes the pixels a little fuzzy and flickery. It's especially obvious when the screen is entirely black like during the boot-up phase.

Did I just deep fry my card?
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