GTX 1080 overclocking help

[ebilcake]

Okay so all I've done for far is increase the core speed to 150+.

Now GPUZ says the boost speed is 1947 but afterburner reads it as around 2050

Not seeing much increase at all in 3dmark scores so I'm a little confused.

EDIT: WTF-can a mod move this please. lulz

 

[Panos]

What is the exact model of the 1080?
Is your GTX1080 aircooled or watercooled?
If aircooled what is your fan curve?

When you are benching how high are your temps, do you use MSI AB beta 14 overlay to give you a constant indication of your speeds & temps?

+150 means nothing because different cards have different starting points.
eg a reference with +250 goes to 2164 while an Armor OC with +226 goes 2177.

To find the speed you aim to, use MSI AB, type CTRL+F and write here the points at
1.075v, 1.081v, 1.093v.

When your cards is at stock settings, what is your max core speed? When you max out the PL and VL bars, without touching anything else, what is your max core speed while gaming/benching?

 

[Shocky-FM]

Boost speed is quite high already so you won't see much of a boost in 3dmark.

 

[ebilcake]

What is the exact model of the 1080?
Is your GTX1080 aircooled or watercooled?
If aircooled what is your fan curve?

When you are benching how high are your temps, do you use MSI AB beta 14 overlay to give you a constant indication of your speeds & temps?

+150 means nothing because different cards have different starting points.
eg a reference with +250 goes to 2164 while an Armor OC with +226 goes 2177.

To find the speed you aim to, use MSI AB, type CTRL+F and write here the points at
1.075v, 1.081v, 1.093v.

When your cards is at stock settings, what is your max core speed? When you max out the PL and VL bars, without touching anything else, what is your max core speed while gaming/benching?

It's an MSI GTX 1080 Armor 8G OC

At stock default clock is 1658 with boost of 1797, however Afterburner displays the core speed as 1898. Yes, using the overlay.

I've not touched voltage yet.

 

[Panos]

Cool stuff I have the same card.

Open MSI AB (beta 14).
Give 100% Voltage, 121% Power Limit, unlink the temp and set it to 85C (since you have it aircooled).

+175 core +300 VRAM.

Make a custom curve to 62C @ 100% fan speed (the Armor heatsink is relative quiet).

Job done

 

[ebilcake]

Cool stuff I have the same card.

Open MSI AB (beta 14).
Give 100% Voltage, 121% Power Limit, unlink the temp and set it to 85C (since you have it aircooled).

+175 core +300 VRAM.

Make a custom curve to 62C @ 100% fan speed (the Armor heatsink is relative quiet).

Job done

100% voltage? is that safe?

 

[Panos]

YES.....

We could do with 200% and still not enough....

 

[uksoldierboy]

What panos said, totally safe, I've fitted my water block and stock it boost to 1962 constantly, I run 2126/1380 for my gaming profile, and +190-200 for benchmarks.


Max so far is 2160 in benchmarks, need more voltage to get anymore, temp hasn't gone above 44c.

 

[Panos]

What panos said, totally safe, I've fitted my water block and stock it boost to 1962 constantly, I run 2126/1380 for my gaming profile, and +190-200 for benchmarks.


Max so far is 2160 in benchmarks, need more voltage to get anymore, temp hasn't gone above 44c.

Try to make a curve and set the point at 2164 @ 1.075v. Lock it with L on the new MSI AB and run a bench. If crashes lower it to 2152 (-12) and set 2164 at 1.081v and 1.093v. Rinse and repeat until you have stable clock.

When you complete the 1.075v, start with the 1.081v.
Add +12 to the previous clock and start working the way down if crashing. If not. Move to the final point 1.093v add +12 to the previous clock and start the way down.

2189 @ 1.093v is the maximum anyone managed without shorting the resistors or heavily modding the card. And even then 2200 is usually what they can get out of it.

After 1.093v the values are irrelevant, no card is using them, so set them all the same, even the Strixx with the 1.2v BIOS doesn't. Only the Galax that was presented at Gamescon. And had a beast overclock. (but not going on sale).

 

[Brazo]

Try to make a curve and set the point at 2164 @ 1.075v. Lock it with L on the new MSI AB and run a bench. If crashes lower it to 2152 (-12) and set 2164 at 1.081v and 1.093v. Rinse and repeat until you have stable clock.

When you complete the 1.075v, start with the 1.081v.
Add +12 to the previous clock and start working the way down if crashing. If not. Move to the final point 1.093v add +12 to the previous clock and start the way down.

2189 @ 1.093v is the maximum anyone managed without shorting the resistors or heavily modding the card. And even then 2200 is usually what they can get out of it.

After 1.093v the values are irrelevant, no card is using them, so set them all the same, even the Strixx with the 1.2v BIOS doesn't. Only the Galax that was presented at Gamescon. And had a beast overclock. (but not going on sale).

Does pascal work best with +12 increments, am sure it was +13 on my keplar 780ti? I'm sure it's your bench I'm chasing so all help appreciated

 

[Panos]

Does pascal work best with +12 increments, am sure it was +13 on my keplar 780ti? I'm sure it's your bench I'm chasing so all help appreciated

Yes Pascal works on 12 increments. And ofc I want to help people to make most out of the card. Still is early days, and unfortunately we do not have any concrete bios editing way to remove all temp limiters from Boost 3. At least the 32C and 42C are the nasty ones holding everyone's card bellow of their true potential regardless if they are on water or air.

Try my method with the curve locked speed, to find if your card can make the speeds. To beat my GPU scores you need 2164 @ 1.075v, 2177 @ 1.081v points on the curve to be stable.

 

[Brazo]

Many thanks I'll keep plodding away, defiantly the thermals holding me at bay. (Air)