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** The Official 8800GT 512/256mb Review/Overclocking Thread **

Ive just reinstalled Riva on XP (was on Vista before) and the shader clock option has vanished, anyone tell me how I get this back?
Cheers

edit: sorted now :)
 
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Big.Wayne said:
So whats that all about fornowagain? :confused:
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Well JonnyGURU you may know of, well known for his PSU site and testing. And a well respected member of the community, so lends some credibility to any comment. Is saying that 1000+MHz on the memory will damage that card permanently. Someone asked him if he knew about the eVGA SSC GT 700/2000, he replied.

JonnyGURU said:
Look.. all I'm saying, or all I'm going to say, is that there's a reason why the memory can't run at 2GHz for a long period. Don't take my word for it. Use the fact that everyone is using the same boards, same RAM, same fansinks, and nobody is running the 2GHz RAM at 2GHz. You can do it and when you have to RMA your card, RMA your card. It's your time and money. I'm not one to tell you how to spend either.
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JonnyGURU said:
I am WELL AWARE of the Evga card.

And I'm sticking with what I've said. I'm quite confident Evga is going to see A LOT of returns.
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I get the feeling he's regretting saying anything. I've certainly never known frequency alone to damage a bus.
 
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It's been nearly one week since the 8800GT went up for sale and so far I haven't heard of many problems with failing cards.

I read that review that mentioned some cards having a problem after running 2000MHz memory speeds but their are lots of forum members here running that speed ok?

I'm keen to start overclocking the Inno3D card but I don't want to fry it! :o

a lot of people have posted their clocks X/Y/Z and then make a post a few days later saying 3Dmark crashed or similar i.e their card isn't as stable as they posted it was?

I hope some of you have done some serious burning in to test those overclocks before posting, something like a 3-4 hour gaming session or similar with no issues?

What sort of stability tests have people been doing on their cards overclocks?
 
Without going through the whole thread does anyone have a 8800gt watercooled ??? i read on xtremesystems that the maze 4-5 and the swiftech MCW60 fit fine but no full coverage block , i have a d-tek fuzion gpu block which should fit fine but want to be sure before i order a 8800 gt or i will have to buy something else .
 
Whats the official Temp where the card becomes over heated. Mine reaches 76 Degrees after benchmarking.
 
V1N said:
I've been hoping somebody would post a normal BFG 8800GT Bios on here, so I could flash my card, which came with the wrong bios!

Anyway, been waiting too long now, got an RMA set for today, they should have more in stock tomorrow so gunna get down and take the card out in a few mins, and box it up, and send it back, and hope the next BFG 8800GT OC, actually has the BFG 8800GT OC bios in it, not just the standard NVIDIA one ;)

V1N.

(Who's to bet somebody posts a BFG bios up here shortly now, either OC or better, OC2 - just AFTER I RMA my card) ;)
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Ouch, that is unfortunate :(

I managed to get my order in for the BFG 8800GT OC on saturday before stock disappeared and expecting delivery on wednesday.......has anyone else had this same problem with the cards bios?
 
What sort of stability tests have people been doing on their cards overclocks?
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Over the weekend I have only benched it on 06

If it passed I would up it a bit and so on..........

Still got to try ATI tool on it and a 3/4 hr gaming session should happen
later this week (Wife and kid permitting)

Got to say i would never run normally with the high clocks i was using
during the benching on 06 (even more so with the comments on the memory
failing)

Is there a set minimum that is expected before a clock is "official" like a 12hr
stint with Orthos for the CPU.
 
Angus02 said:
Is there a set minimum that is expected before a clock is "official" like a 12hr stint with Orthos for the CPU.
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I don't think anyone has astablished a reliable, standardised stress-test for overclocking GPUs but personally I tend to run the fireflies test of 3D Mark 06 looping for an hour or so if I am truly anal about testing for stability.

I'd loop it longer, but sitting watching those lights for more than an hour while I try to spot artifacts would send me completely barmy very easily. Either way I find unstable cards fail that test rather than Proxycon (or w/e.)
 
fornowagain said:
I get the feeling he's regretting saying anything. I've certainly never known frequency alone to damage a bus.
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Yeah, there's no logical reason why an overclock would cause physical damage (unless it caused extreme temps). I think JonnyGURU was just looking for some reason why most vendors hadn't released a 2000Mhz OC version of the GT, and came to the conclusion that it must harm the cards.
I don't think he knew about the eVGA card when he made his original post.
 
Sir Random said:
Yeah, there's no logical reason why an overclock would cause physical damage (unless it caused extreme temps). I think JonnyGURU was just looking for some reason why most vendors hadn't released a 2000Mhz OC version of the GT, and came to the conclusion that it must harm the cards.
I don't think he knew about the eVGA card when he made his original post.
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Higher frequency = greater flow of electrons = increased heat = increased chance of physical damage
 
smsmasters said:
Higher frequency = greater flow of electrons = increased heat = increased chance of physical damage
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Makes sense if i can remember when i did science, wouldnt increase much but its enough to risk it. Do increasing mem clocks increase performance by a lot anyway?
 
smsmasters said:
Higher frequency = greater flow of electrons = increased heat = increased chance of physical damage
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Increased switching rates generate more heat in the gates, the power used is directly proportion to the ratio of the increase. Its nothing compared to the increase from voltage, based on the square of the current. What I don't follow, Jonny says its the memory controller interface failing and not the memory itself. Which is rated at 1/1000 1ns. Nor does considering frequency take account of latencies. I don't think 1950/2000 or 2.5% extra would be a make or break difference. I think it more likely they underclocked the card to create a gap from its new big brother, which may have higher clocks.
 
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willhub said:
So should people with 8800GT's decrease the memory to 975 or lower?
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Mines at 1000 and it'll stay there until I move the card on. From stock 1800 to 2000 is 11% increase in power for that part. The memory uses very little, a few watts per chips. 11% of not much, I doubt the memory overclock comes to more than 5W in total. So not a lot of extra heat.
 
antonusklesk said:
Ouch, that is unfortunate :(

I managed to get my order in for the BFG 8800GT OC on saturday before stock disappeared and expecting delivery on wednesday.......has anyone else had this same problem with the cards bios?
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Mines fine. How would i read the BIOS off so that i could post it?
 
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