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Overclocking the 8800GT

R

Renovatio

Junior Member
Hi,
I know many manufacturers have come out with their own factory OCed versions i.e. Zotac, Asus and XFX, but they are just too expensive here, with an extremely large price gap between them and their stock cousins.

Anyways, I bought a XFX 8800GT 512MB@stock speeds, but with a Zalman cooler instead. Link below:

http://www.xfxforce.com/web/pr...onfigurationId=2011435

What do you think of it? Is it any good? I've OCed my old MX440 to scary speeds before but then because of a series of rather stupid events, I'm paranoid about pumping extra voltages into my hardware.

How's the OCing capabilities on this? And if you own a 8800GT and has OCed it, what speeds were you stable at?

Thanks!
 
Try 700 Mhz 1000 Mhz and 1680 MHz

YOu should have bought a GTS 512..!!

BTW if you really want to pust it tr 720 1080 and 1710..!!
 
If the Zalman cooler beats the reference, I'd say about 680-700 core without a voltmod. Don't know about the other two, but ajai is probably right.
 
Every card is different, so don't expect to have the same stable clocks speed that other gives you. Overclock it yourself and see how high it can go.
 
With a zalman cooler, you can go pretty high. I don't remember exactly, but when I built my friend's computer, I used the galaxy 8800gt with a cooler master cooler here link. It was the only $200 8800gt at the time and people get 750+/2100+ on it because of good memory chips (1.0ns), mosfet heatsinks, good cooler and because the stock voltage is like .15V higher than other 8800gt's. On top of that, there's a jumper to increase the voltage by .1V more. So don't be afraid of upping the voltage a little (.1-.15V), though if I recall correctly, you can only increase it by .1V at most without some mod, which is why the Galaxy 8800gt is desirable for its overclockability.
With all that said, a good overclock on a good cooler like the zalman would be 700+/2000. I don't see it hitting 750 because you'll prbably need mosfet cooling for that.
 
Ok, my Gigabyte with an S1 and a 120 mm fan on it, which keeps the card cooler then that Zalman ( 50 C on load ), gave me only 685 mhz on the core. I've managed to touch 740 mhz with the bios volt mod. So, even if the cooler keeps the card very, very cool, that doesn't mean that it will overclock like a beast. The voltage is also very important.
 
Thanks for the feedback! I really appreciate it.

On why I didt get the 8800GTS instead, it costs $400 more here ($1200) and I'm on a tight budget. How much is the difference between the GT and GTS in the US? Here it really puts a dent in your wallet.




 
I just got the xfx 8800gt 512mb last week. I installed the S1 cooler on it and my current settings are:

Core: 720
Mem: 998
Shader: 1800

Load temp is around 55
 
See my sig, I ordered a 8800GT the day they came out. EVGA card. Got a Zalman cooler on it. It'll do 750 in every game but Crysis.
 
729/1674/972


This is with stock volts. I can probably do more on the core, but I'll get 15 more mhz out if it and it's really not worth it at that point.
 
The one in my second rig is 729|1000 1850. That's a manual OC.

I've had it to 746 briefly and it doesn't hold that speed long.
 
Originally posted by: Renovatio
Okay, these seem encouraging.

BTW will installing 3rd party add-ons i.e. S1 void the warranty?
Click to expand...

Depends on which company's card you bought. i'm pretty sure with EVGA you can swap out the stock HSF with a third party one
 
Originally posted by: DeathBUA
i'm pretty sure with EVGA you can swap out the stock HSF with a third party one
Click to expand...

EVGA will cover replacing the stock HSF and will cover overclocking. But you have to keep the stock HSF and reinstall it before shipping it back. Anything short of physically damaging the card and they will cover it (i doubt volt mods are covered).
 
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