GTX 650 Overclocking problem

[sidas]

I have a factory overclocked Gigabyte GeForce GTX 650 2GB card. Stock clocks (GPU core/Memory, MHz): 1111/2500
I used EVGA Precision X to overclock it even more. I created profile 1 w/ offset of +1/+55. It worked fine, so I decided to go higher. Profile 2 offsets were +264/+500. These ones worked for a while.
When a card isn't on load it downclocks itself. With profile 1 it used to go back up to 1112/2555 or smth, but when i created profile 2, it doesn't go any higher than 540/810 with either profile applied even after restart. 
The temperature never exceeded 40-42°C 
 
My question:
Should I try lower offsets, different software (Gigabyte OC Guru II etc.) or just return to default values ant stop bothering? (Different card is not an option)

[M-ursu]

I have a factory overclocked Gigabyte GeForce GTX 650 2GB card. Stock clocks (GPU core/Memory, MHz): 1111/2500

I used EVGA Precision X to overclock it even more. I created profile 1 w/ offset of +1/+55. It worked fine, so I decided to go higher. Profile 2 offsets were +264/+500. These ones worked for a while.

When a card isn't on load it downclocks itself. With profile 1 it used to go back up to 1112/2555 or smth, but when i created profile 2, it doesn't go any higher than 540/810 with either profile applied even after restart.

The temperature never exceeded 40-42°C

My question:

Should I try lower offsets, different software (Gigabyte OC Guru II etc.) or just return to default values ant stop bothering? (Different card is not an option)

You can always use MSI afterburner and unlock voltage.

My Gtx 650 was running @1.5Ghz and mem6000Mhzhttp://linustechtips.com/main/topic/37354-msi-afterburner-is-not-showing-real-temps/#entry480246

[brownninja97]

You can always use MSI afterburner and unlock voltage.

My Gtx 650 was running @1.5Ghz and mem6000Mhzhttp://linustechtips.com/main/topic/37354-msi-afterburner-is-not-showing-real-temps/#entry480246

You ripped it in the silicon lottery then.

 

I have a factory overclocked Gigabyte GeForce GTX 650 2GB card. Stock clocks (GPU core/Memory, MHz): 1111/2500

I used EVGA Precision X to overclock it even more. I created profile 1 w/ offset of +1/+55. It worked fine, so I decided to go higher. Profile 2 offsets were +264/+500. These ones worked for a while.

When a card isn't on load it downclocks itself. With profile 1 it used to go back up to 1112/2555 or smth, but when i created profile 2, it doesn't go any higher than 540/810 with either profile applied even after restart. 

The temperature never exceeded 40-42°C 

 

My question:

Should I try lower offsets, different software (Gigabyte OC Guru II etc.) or just return to default values ant stop bothering? (Different card is not an option)

Can you boost the voltage or power delivery, i think the card or drivers think that the clocks will destroy the gpu so its limits itself.

[sidas]

Can you boost the voltage or power delivery, i think the card or drivers think that the clocks will destroy the gpu so its limits itself.

I can turn up the voltage from 1,125V to 1,137V, but as the clocks stay down (540Mhz Core /810 Memory), the voltage also remains 0,975V

[sidas]

I tried ZOTAC FireStorm and MSI Afterburner: same problem.

on Aftrbnr I tried lower offsets (+139 MHz Core/ +500 MHz Memory), restarted PC – it worked! and since MSI Afterburner and EVGA Precision are both powered by RivaTuner, I closed Afterburner, installed EVGA Precision again, set the same offsets and it also worked. 

 

Solution: lower core offset.