Problem with GTX260 clocking back [F@H]

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Hi all

I have an anoying problem that some here may have come across and been able to fix

I have moved my pair of GTX260s to a new rig

AMD 955BE
4GB DDR2 1000
MSI KA92 Platinum
2 x 250GB HDD RAID1
DVDRW
Corsair 850HX
Sunbeam contact cooler
Windows XP SP3

One GTX is connected to a monitor the other is connected to the television via s-video cable (TV not on all the time)


Now in the old rig this problem only occurred once or twice, a reboot sorted it out and I wouldn't see it again for months however it seems to be happening all the time now

The problem is that one of the cards seems to clock itself back when it feels like it whether it be in the middle of a work unit or not! One card is a Sparkle the other is a Point of View and they are both clocked to 576/1500/999 using EVGA's precision tool - I found that Riva tuner would only clock one card on start up and you would have to manually clock the other card every time the PC was rebooted.

If you allow the card to go idle then you can see the core and the shaders clock them selves back and then when under load clock themselves back up - normal energy saving behaviour but surely this shouldn't happen when the card is crunching a unit.

Anyone got any ideas?

I had thought I might use NiBiTor to edit the BIOS to make the overclocks a permanent change and I think I can also stop the cards clocking themselves back if I make the right changes, however I don't really want to use NiBiTor because, knowing my luck, I'll kill the cards

**Edit** sorry meant to say this is a Folding problem
 
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Does it do it if its the only card folding or only when both are? How are the temps?

Temps are OK around 72 for the Sparkle and around 78 for the Point Of View - fans are set to auto

I haven't tried folding on each card independently but I'll try when I get back from work this evening

forgot to mention I am using the console client running as a service with -gpu0 and -gpu1 switches
 
I had this problem when i had my GTX 280 running
you need to clock back the shaders slightly to resolve this permantly
if memory serves me correctly the max i could get shaders wise was 1488 with GTX280
Once i clocked it to that it was stable as the day was long.
 
I had this problem when i had my GTX 280 running
you need to clock back the shaders slightly to resolve this permantly
if memory serves me correctly the max i could get shaders wise was 1488 with GTX280
Once i clocked it to that it was stable as the day was long.

Thanks for the reply I'll give this ago after I've seen what happens when the cards fold independently
 
I hate to say it but try clocking the sparkle down till its stable.

Or swap the cards pcie slots first.

Just try and isolate the issue, as you said it was working fine before right?
 
I will try swapping the cards round first before I start clocking the cards back

However the card worked OK when it was in my Gigabyte EX58-UD5 X58
 
Sorry figure of speech

I refer to it as the old rig as this is where the cards have come from. They have gone into my wife's PC. It certainly isn't my old rig by rather my main shiny rig and I don't let the missus anywhere near that

From my other thread that I've got open at the moment you can see I am going to put a couple of GTX460 cards in it. Rather than leave the 2 8800gt cards that were in my wife's PC I've used my two gtx260 cards and will sell the 2 8800gt cards
 
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