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Gigabyte 7970-TO Ghz edition ... Not sure if ...

post #1 of 6
Thread Starter 
Hello,

Last week I bought a Gigabyte 7970 GHz edition.
I just got a job so it's the most expensive GPU I've ever owned, but I'm actually a bit disappointed.

The card atm is running 1150/1500 MHz with the +20 power from the catalyst center. (I have no idea what this option actually controls, but I'm unstable at these clocks if it's set at 0). This is perfectly fine in games (metro 2033, FC3 ...), and stays constant.
Note: haven't had the time to up the memory yet.

Here are my problems at the moment:
- when furmarked, the card periodically drops from 1150 down to 501 then back
- I cannot up the voltage beyond 1.256V which seems to be the arbitrarily set voltage from the constructor
- I probably won't be able to overclock the card higher than that, and it seems quite low given that some people reach the 1250MHz (>10%)
- the stupid fan is controlled by steps of 10% and that makes a huge noise differential

Since I was a little afraid to put so much money in a single piece of HW, I took an "insurance" to have the product changed if I don't like it. Do you guys think I should change it for another card ?

Thanks smile.gif

PS: I'm satisfied with the raw power of the card, I'm just disappointed in the fact I might have a lemon in my hands compared to the awesome components I got last year (2500k 4.6GHz@1.272V and 560Ti 980MHz@1.037V).
post #2 of 6
the +20% power control allows maximum power to be delivered to the card. Thats required if you want to run without the card throttling to lower clocks. Also Furmark does not represent a real workload. Don't bother with testing that. Use BF3, Crysis 2, 3D Mark 11, Heaven 3.0 for testing stability. 1150 Mhz is disappointing given that your card comes at 1100 Mhz stock. Try the latest sapphire trixx version. If you still can't control voltage its upto you to decide. Also 1150 Mhz is still very powerful. IMO if the card is rock stable in all games at 1150 Mhz with temps below 70c and low fan noise keep it.

also which country are you in. also what monitor do you have. If you want to go for another card you could consider MSI HD 7970 Lightning.
Edited by raghu78 - 12/13/12 at 3:59am
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(14 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i5 2400 DH67BL AMD Radeon HD 6900 Series XFX HD 6950 2GB 
RAMRAMHard DriveOptical Drive
Corsair Corsair DDR3 1333 Mhz 2 GB Corsair DDR3 1333 Mhz 2 GB Western Digital Caviar Green SONY DVD-RW AD-7260S 
OSMonitorKeyboardPower
Windows 7 Professional 32 bit BENQ G2420HD Logitech K200 Seasonic VX550 psu 
CaseMouse
ANTEC 200 V2 Logitech mouse 
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post #3 of 6
What version is your card ?
post #4 of 6
Thread Starter 
Answers in the order of the questions:

I tried the Trixx software but it won't let me push the voltage past 1.256 which seems to be the max built into the ROM for this card.
But it allowed me to define a curve for the fan, so it wasn't useless !

I live in France and my screen is a Iiyama PL26, 1920x1200 but I intend to change it next week or so for a higher resolution screen.
I took a look at the MSI lightning one before my purchase, but the reviews were really mitigated !

The card is the GHz edition from GB (with TO in the name)
post #5 of 6
No, no the name smile.gif
The version of PCB - is ver 1.0 or ver. 2.1.

http://www.overclock.net/t/1331761/any-gigabyte-7970-ghz-ed-gv-r797to-3gd-owners
post #6 of 6
Thread Starter 
Pretty sure it's a 2.1, i'll double check to make sure but the symptoms are that of this reference.

Edit: confirmed smile.gif
Edited by spow - 12/13/12 at 10:16am
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