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Windforce 670 no longer stable after memory oc

flinco

flinco

flinco

Associate
Joined
22 Jan 2005
Posts
1,267
Location
Australia
Hi guys,

At some point around 2 weeks ago my 670 oc @ 1215/7600 started becoming unstable and crashing in games.

At first I thought it was the core, so I tested it with a reduced core oc but still got the driver crashing. Now after more testing, the core OC is stable but introducing a memory OC will crash the driver - even as little as 100mhz.

Has anyone else experienced something similar? Perhaps it is memory degradation?
 
Tried a clean sweep of drivers and overclocking tools?

Could just be somethings become conflicted/corrupt after a bad OC.
 
perhaps you've pushed it too far and damaged the memory ? did you over-volt anything

memory overclock doesn't make much difference does it ? so leave it at stock ?
 
one of my windforce 670's has gone funny, been running two in sli for 2 months at stock , had driver errors on desktop, and graphics corruption, seems fine in games.

Tried both cards seperate , singled one out that was bad, will have to rma :rolleyes:
 
My first KFA2 buggered too, but it was the boost clocks that got ruined, for some reason everything would crash when the card was entering boost clocks at stock speeds, even youtube videos.

Got it replaced with one thats slightly worse on the max GPU clock (only 1228 Mhz max), but the Vram goes up to 7500 Mhz though I dare not push it that far.
 
Dont Nvidia specifically build these cards with no oc?

I suggest you update to latest bios (one of the things mentioned was more stable memory) and try and introduce your overclock again, through thorough testing.
 
^Don't intel, and amd build their products with no o/c?

This nvidia situation is getting out of hand.. People on youtube are defending them in droves
 
OptimaLnrg said:
^Don't intel, and amd build their products with no o/c?

This nvidia situation is getting out of hand.. People on youtube are defending them in droves
Click to expand...

Not really. Since SB Intel advertise their k series as overclokcable. Nvidia, on the other hand since Kepler have been telling manufactures to remove overclocking tools and software, so I think the two are very different.
 
agreed K series chips are specifically items to overclock

GPUs you're taking the risk - if you break it - time to purchase a new GPU- I know that running my 480 overclocked is a risk - but a risk I'mwilling to take
 
My very first EVGA 680 scored me about 8500 in 3Dmark11 (GPU score only) after I put a good clock on it, it scored me over 1100. So as far as saying "Dont Nvidia specifically build these cards with no OC?" is a pointless question.

As for the OP's card, I would check your temps and if they are good, look to an RMA.
 
Nvidia have said no overvolting, not no overclocking.

My first 670 did 1240 / 7200, and the replacement does 1228 / 7500, which should be better.
 
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