1080 Overclocking Help

[redsquirrel0249]

Boosted base clock by 100 MHz to test incrementally like I've done with CPU before, and I'm already getting game crashes. Base normal is 1683 and boost is like 1900 something, so how can overclocking the base to 1782 cause problems? I don't need to boost voltage for that, so what gives? Temps are also fine, sitting around 71 previously. Any feedback is appreciated.

[Jurrunio]

4 minutes ago, redsquirrel0249 said:

so what gives?

Because you're not reading the right number. GPU boost 3 pushes the GPU past the base and boost at stock and when overclocked.

[redsquirrel0249]

Just now, Jurrunio said:

past the base and boost at stock and when overclocked

So is the boost screwing me over? Surely not, right? And I think I'm reading the proper numbers for the stock base and boost numbers. At any rate, why does increasing the clock by such a marginal amount have such a negative effect despite temps? I've seen 1800 Mhz or so at core voltage do fine in other rigs.

[Jurrunio]

1 minute ago, redsquirrel0249 said:

So is the boost screwing me over? Surely not, right? And I think I'm reading the proper numbers for the stock base and boost numbers. At any rate, why does increasing the clock by such a marginal amount have such a negative effect despite temps? I've seen 1800 Mhz or so at core voltage do fine in other rigs.

show me a screen capture and highlight the numbers you're reading please.

[redsquirrel0249]

@Jurrunio

 

HWinfo64 shows base clock, Afterburner shows boosted base clock in slider, but when idle shows regression to normal base clock (which I thought was normal given no usage). Tried to screenshot during a superposition benchmark, but it wouldn't let me, but I was getting about 2000 MHz in that, and it ran fine. I crash in Siege and another game almost immediately after playing, though.

 

Also did an OC scan an found the average to be 56 MHz, so that might have been too high at 100? idk

[Mick Naughty]

100 is quite a lot. Didn't add power or voltage and expect a lot out of it. As well as the card maker being what they are. 

[Jurrunio]

9 hours ago, redsquirrel0249 said:

HWinfo64 shows base clock

I'm talking about frequency sustained in 3D loads, say games. At idle the GPU defaults to base clock with power plan in Nvidia control panel that's not "power save" (otherwise it will dip even more, minimum 139MHz for Pascal). The screenshot below Afterburner looks like AIDA64.

 

10 hours ago, redsquirrel0249 said:

I was getting about 2000 MHz in that, and it ran fine.

Then you are reading it properly.

 

Basically, forget the base and boost stuff. Actual frequency matter, they don't.

 

2-2.2GHz is where Pascal GPUs reside when overclocked, so you're results seem normal. 

10 hours ago, redsquirrel0249 said:

Also did an OC scan an found the average to be 56 MHz, so that might have been too high at 100? idk

Now you jumped to talking offsets, which is something incomparable to those using the same GPU but different model of that GPU. Say, sb with an EVGA GTX 1080 FTW will need a different offset value to hit the same actual frequency.

[redsquirrel0249]

19 hours ago, Mick Naughty said:

quite a lot

Yeah, toned it down to 48 MHz over base, works great now. I just wanted a bit over base without changing voltage for now.

 

17 hours ago, Jurrunio said:

screenshot below Afterburner

That's HWinfo64. I understand what you're saying about a set clock and actual clocks.

With regards to offset values, is that what this delta of 56 MHz is, just adjusting the GPU boost frame up that much, basically? Why does that vary by card model and not GPU? That's interesting.

[Mick Naughty]

I’d just add power and voltage if you want to go higher. Assuming the board has the power delivery nesesary or is just a good gpu. 

[Jurrunio]

6 hours ago, redsquirrel0249 said:

With regards to offset values, is that what this delta of 56 MHz is, just adjusting the GPU boost frame up that much, basically? Why does that vary by card model and not GPU? That's interesting

Yes, basically "offset_value" higher than what it would go without the offset. Could still be a tad lower due to GPU boost backing off as temperatures increase, but that's usually a small difference.

 

It varies by card model because different cards can start with different full load cards. Heard of factory overclock? That's what makes things different between cards. You can treat that as offset added by the manufacturer out of the box that software can't read.

 

6 hours ago, Mick Naughty said:

I’d just add power and voltage if you want to go higher. Assuming the board has the power delivery nesesary or is just a good gpu. 

It's a 1080 Gaming X from MSI, power limit at stock is already higher than a reference 1080ti...

[Mick Naughty]

9 hours ago, Jurrunio said:

16 hours ago, Mick Naughty said:

 

It's a 1080 Gaming X from MSI, power limit at stock is already higher than a reference 1080ti

No idea what either of them are. So either a poor silicone or too hot. Or both giving the low clocks.