Overclocking my 970SSC

[SirWendall]

I'm having trouble overclocking my 970. It's stable in benchmarks but when I play games (like Witcher 3) its stable for about 25 mins then it black screens and quits the application.

[Ryoku]

18 minutes ago, GamerMan said:

I'm having trouble overclocking my 970. It's stable in benchmarks but when I play games (like Witcher 3) its stable for about 25 mins then it black screens and quits the application.

Increase the voltage, if your already doing that then you lost the silicon lottery.  Some games don't play well this Overclocks so that could be a possibility too.

[SkilledRebuilds]

1 hour ago, GamerMan said:

I'm having trouble overclocking my 970. It's stable in benchmarks but when I play games (like Witcher 3) its stable for about 25 mins then it black screens and quits the application.

It's ONLY considered stable if its STABLE.

 

Benchmark Stable - Isn't stable at all is it.... if your Games are ruined.

 

Just back off the clocks....and retest.

Go read the many Overclocking attempts of others... (Youtube/Google search)

The more you know going in, the better.

 

FYI - Maxing out Voltage on Maxwell can also LIMIT your Final OC potential as well...

[SirWendall]

1 minute ago, SkilledRebuilds said:

It's ONLY considered stable if its STABLE.

 

Benchmark Stable - Isn't stable at all is it.... if your Games are ruined.

 

Just back off the clocks....and retest.

Go read the many Overclocking attempts of others... (Youtube/Google search)

The more you know going in, the better.

 

FYI - Maxing out Voltage on Maxwell can also LIMIT your Final OC potential as well...

So far I've only went to 12+ volts and 100mhz on the core in Valley Benchmark and it works

[SkilledRebuilds]

12 minutes ago, GamerMan said:

So far I've only went to 12+ volts and 100mhz on the core in Valley Benchmark and it works

Mine boosts to 1380Mhz on it's own. (Gigabyte G1 GTX970)

With +10mv it boosts to 1391Mhz on its own, I added +9Mhz, saved my new (1400Mhz) as OC #1

 

Profile for OC #2 - +30mv I can get +59/+200 (1450Mhz Core) (Could prob push higher core clocks, but thats what #3 is for)

 

#OC3 - +60mv for +125Mhz / +300Mhz

 

All on stock fan profiles... (Can hear fans past 70-72% so I try to keep them lower than audible while still overclocked)

My card will top out at 1565Mhz with +100Mhz Memory, if I take memory Up, my core clock goes unstable, but its not when its like this.

My card is pretty comfy with 1500Mhz +200Mhz Memory additions too, but its game to game which OC I run (some games prefer mem bandwidth boosts)

 

Google "Linus GTX970 owners club"

Much info can be had there, and you can even msg the users here.

[SirWendall]

1 minute ago, SkilledRebuilds said:

Mine boosts to 1380Mhz on it's own. (Gigabyte G1 GTX970)

With +10mv it boosts to 1391Mhz on its own, I added +9Mhz, saved my new (1400Mhz) as OC #1

 

Profile for OC #2 - +30mv I can get +59/+200 (Core/Mem) (Could prob push higher core clocks, but thats what #3 is for)

 

#OC3 - +60mv for +125Mhz / +300Mhz

 

All on stock fan profiles... (Can hear fans past 70-72% so I try to keep them lower than audible while still overclocked)

 

Google "Linus GTX970 owners club"

Much info can be had there, and you can even msg the users here.

If it helps I'm watercooling my card

[Ekst4zy]

My is at +220Mhz / +500 Mhz on stock voltage. I had the same issue with it... Stable in firestrike, but after an hour of playing game crash. I had to turn dowm my clock two times (from 240 to 230 and finally to 220).

 

P.S. If you are on water... what voltage do you have? I know for a fact that people with waterblocks use ~1.3V

[SirWendall]

Just now, Ekst4zy said:

My is at +220Mhz / +500 Mhz on stock voltage. I had the same issue with it... Stable in firestrike, but after an hour of playing game crash. I had to turn dowm my clock two times (from 240 to 230 and finally to 220).

Could it just be mycard then? Cause no matter what it just crashes. (Except when I went to +10Mhz on the core and played Witcher 3)

[SirWendall]

3 minutes ago, Ekst4zy said:

My is at +220Mhz / +500 Mhz on stock voltage. I had the same issue with it... Stable in firestrike, but after an hour of playing game crash. I had to turn dowm my clock two times (from 240 to 230 and finally to 220).

 

P.S. If you are on water... what voltage do you have? I know for a fact that people with waterblocks use ~1.3V

Max I pushed was 1.28 or 1.26

[Ekst4zy]

2 minutes ago, GamerMan said:

Max I pushed was 1.28 or 1.26

I'm just saying what I saw in the past.

3 minutes ago, GamerMan said:

Could it just be mycard then? Cause no matter what it just crashes. (Except when I went to +10Mhz on the core and played Witcher 3)

It's hard to say... but 1400-1500 on core is a range that you can expect and 7000-8000 on memory 

[Vellinious]

30 minutes ago, GamerMan said:

Max I pushed was 1.28 or 1.26

With your GPU watercooled, you can push the voltage all the way up.  The bios has it limited and will only go so high, anyway.  There's nothing there that's going to hurt your card in any way, shape or form.  Maxwell is a little heat sensitive, so the cooler you keep it, the better it'll run.  There are very few 970s out there that can't run 1500 and be completely stable, especially with adequate cooling.

What the ASIC quality on your card?  Anything less than 70% may explain your troubles....maybe.