GTX 1080 Overclockers - Advice needed

[[HJ]-RedRaven]

10-series card owners - I seem to be having an issue with my 1080 in VR;

I have a Gigabyte G1 Gaming 1080 GTX
I have used the Gigabyte OC utility to OC the card
I have it set to +185 core (1861/2000)
Memory is set at+440 (10450)
When I start ED it stays up at 1974-2000 (in the monitor window/SRV hangar its pulling 124fps)

But as soon as I put on the Rift it immediately drops to 1696. ??? Memory stays put at 10450.

I can change the values all I like, as soon as I plop on the HMD, 1696. [sour]

What gives? Ideas welcome... I'm scratching my head and feeling like a noob. [noob]

Second query is what are you all using to OC the cpu these days? 3770K needs some more powah.

 

[atlas974]

10-series card owners - I seem to be having an issue with my 1080 in VR;

I have a Gigabyte G1 Gaming 1080 GTX
I have used the Gigabyte OC utility to OC the card
I have it set to +185 core (1861/2000)
Memory is set at+440 (10450)
When I start ED it stays up at 1974-2000 (in the monitor window/SRV hangar its pulling 124fps)

But as soon as I put on the Rift it immediately drops to 1696. ??? Memory stays put at 10450.

I can change the values all I like, as soon as I plop on the HMD, 1696. [sour]

What gives? Ideas welcome... I'm scratching my head and feeling like a noob. [noob]

Second query is what are you all using to OC the cpu these days? 3770K needs some more powah.

With gtx 1080, gpu frequency change dynamicly to adapt to these factors: power usage, thermal limit, gpu voltage limit.... This means that you can put some high oc settings, these limits will throttle down your gpu to prevent burning or other bad things. Some gpu have hard limit to gpu voltage that means you can increase it on your oc software it won't do anything in reality.

Also don't forget that if you are at the 90fps limit and sub 11ms latency, the gpu will also throttle down as it doesn't need it full power to maintain higher fps or lower latency. If you have a htc vive and got reprojection kicking in (45fps) the gpu will simply throttle to standard frequency as the load decreased a lot (90 to 45fps).

For CPU i use bios settings, but my cpu is different than yours, so better google a guide for yours.

 

[Yololo69]

My 3770K is OC to 4,4301GHz for months and I realize I'm not sure to be able to redo this is something goes wrong as I lost some data I used to OC it. I made the OC in the Bios directly, and only retrieved this small text document to remember the change I made:
Clock 1680.4 => 4430.1
103x16 => 103x43
As far as I remember the Clock is the main CPU clock (obviously) and the 43 I set is for different 4 fields, for the 4 cores, it's a multiplier. I didn't store if I made change to voltage or stuffs like that, possibly those above data was enough in my case. I remember I found those value thanks to an auto OC program delivered with AISuite2, and I uninstalled AiSuite2 months ago due to incompatibility with Oculus software. I may find time to dig in my bios to provide more information later tonight if I detect other changes I made.

BTW I have an huge fan system to cool the CPU from Nanctua. The one with 2 big fan.

 

[Raptoyd]

My 3770K is OC to 4,4301GHz for months and I realize I'm not sure to be able to redo this is something goes wrong as I lost some data I used to OC it. I made the OC in the Bios directly, and only retrieved this small text document to remember the change I made:
Clock 1680.4 => 4430.1
103x16 => 103x43
As far as I remember the Clock is the main CPU clock (obviously) and the 43 I set is for different 4 fields, for the 4 cores, it's a multiplier. I didn't store if I made change to voltage or stuffs like that, possibly those above data was enough in my case. I remember I found those value thanks to an auto OC program delivered with AISuite2, and I uninstalled AiSuite2 months ago due to incompatibility with Oculus software. I may find time to dig in my bios to provide more information later tonight if I detect other changes I made.

BTW I have an huge fan system to cool the CPU from Nanctua. The one with 2 big fan.

Did not know that AISuite2 does not play nice. I have that installed what issue were you having with that as far as
Oculus software is concerned?

Edit: My bad I have AISuite 3

 

[HeavyGroovez]

Try cranking the debug tool SS up to ensure the GPU stays fairly heavily loaded and whack the fans up so GPU Boost doesn't start throttling.

Pascal GPU Boost goes bananas with the clocks otherwise.

 

[Yololo69]

Not sure I'm allowed to post link to the Oculus Forum but just searching AiSuite in, them bring several posts explaining problems people had like judder after 20/30 minutes, screen jump, GPU clock or CPU clock locked to a lower value than expected, etc. Even Cybereality, the official moderator working at Oculus asked several times to remove AiSuite to see if it help as they know problem exist with it. Now I don't know if AiSuite3 is involved versus AiSuite2... But when you think about it, this suite of software are not really needed for our machine (I have an old P8Z77-V MB still working like a charm).

 

[Jon flint]

Install gpu-z, you can monitor the gpu in real time, right at the bottom of the monitoring tab, there's a "perfcap reason" box, it will show the various reasons the performance/clock was capped, reasons will vary from voltage, power, utilisation and least likely thermal. This might give you some clue what's dropping your clocks.

 

[horizone]

There was a driver issue with the Nvidia cards where no GPU boost would work in VR. Are you up to date on your drivers?

Info: http://www.tomshardware.com/news/nvidia-gtx-1080-vr-boost,32235.html

 

[[HJ]-RedRaven]

Not sure I'm allowed to post link to the Oculus Forum but just searching AiSuite in, them bring several posts explaining problems people had like judder after 20/30 minutes, screen jump, GPU clock or CPU clock locked to a lower value than expected, etc. Even Cybereality, the official moderator working at Oculus asked several times to remove AiSuite to see if it help as they know problem exist with it. Now I don't know if AiSuite3 is involved versus AiSuite2... But when you think about it, this suite of software are not really needed for our machine (I have an old P8Z77-V MB still working like a charm).

Nice, I have the same Asus motherboard. I've just ticked up the base clock by 10%. I'm only on the standard cpu fan, so I can't go too far.

Used to heavily overclock stuff way back, water cooled rigs were my main passion. Sorta lost the urge when I had my Athlon FX-57 as that was pretty fast back in its day, and this 3770K has been fine so far in everything. I'm just looking for a bit more in VR.

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Install gpu-z, you can monitor the gpu in real time, right at the bottom of the monitoring tab, there's a "perfcap reason" box, it will show the various reasons the performance/clock was capped, reasons will vary from voltage, power, utilisation and least likely thermal. This might give you some clue what's dropping your clocks.

Cool, this is good to know, will get it.

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There was a driver issue with the Nvidia cards where no GPU boost would work in VR. Are you up to date on your drivers?

Info: http://www.tomshardware.com/news/nvidia-gtx-1080-vr-boost,32235.html

I was on 368.69 so that looks to have been my main issue! The clamping of the boost clock to 1696 is exactly what I'm experiencing.

Thanks mate - repped!!!

Updating to the latest 372.90 driver now.

Now all the settings will work and it'll all blow up in my face

 

[Moonax IRL]

Don`t know about the 1080 but I have a Zotac 1070 amp extreme, with +150 on the core and +500 on the memory with stock voltage/power, it hits 2133mhz on the core, drops to 2100, then 2088 when it slips above 50c. It will stay at 2088mhz or less constant and about 55-56c temps. I only have the card less than a week so I have done limited OC but from what I see todate I think temps are the big factor and will downclock the card regardless of the extra oc you put on. I still have to play around with it but I must do some checking for more info first.

My CPU is an i7 4790k plus 24 gigs of ram.

 

[[HJ]-RedRaven]

Updating to the newer 372.09 drivers fixed the issue.

The bug regarding overclocked 1080GTX'es is gone.

Now my 1080GTX is happily clocked at +165core +400mem, so baseclock is 1861 / boost 1980 (was at 2000 but started getting spiky artifacts in planet terrain).

My cpu is a 3770K and mildly overclocked (stock fan/sink) to about +10%. Works nicely at 4.1GHz in ED no crashes.

 

[horizone]

Glad to have helped. Nice overclock.

 

[Beavis Tingleball]

Updating to the newer 372.09 drivers fixed the issue.

The bug regarding overclocked 1080GTX'es is gone.

Now my 1080GTX is happily clocked at +165core +400mem, so baseclock is 1861 / boost 1980 (was at 2000 but started getting spiky artifacts in planet terrain).

My cpu is a 3770K and mildly overclocked (stock fan/sink) to about +10%. Works nicely at 4.1GHz in ED no crashes.

your setting of +165 core clock sounds fine but I would bring the mem down to +200/+204 and give your core volts an extra +75. that should get you screaming into the 2100+ range without any artifacts. dont forget to max out your power limit. set your cards fans to %100 to avoid temp throttling. These are the settings i use for my MSI 1080 armor and my in game load temps hover around 120F on air.as i type this, my temps are 75f on the cpu and 93f on the card

 

[shadragon]

your setting of +165 core clock sounds fine but I would bring the mem down to +200/+204 and give your core volts an extra +75. that should get you screaming into the 2100+ range without any artifacts. dont forget to max out your power limit. set your cards fans to %100 to avoid temp throttling. These are the settings i use for my MSI 1080 armor and my in game load temps hover around 120F on air.as i type this, my temps are 75f on the cpu and 93f on the card

MSI has some serious cooling tech. These same settings on other manufacturers cards may not work, unless you have water cooling or the like. Thermal throttling is probably the cause of the lowered 1696 level.

[video=youtube;OXUo1S55ZUM]https://www.youtube.com/watch?v=OXUo1S55ZUM[/video]

 

[[HJ]-RedRaven]

MSI has some serious cooling tech. These same settings on other manufacturers cards may not work, unless you have water cooling or the like. Thermal throttling is probably the cause of the lowered 1696 level.

https://www.youtube.com/watch?v=OXUo1S55ZUM

It was definitely the driver issue that was holding the base clock speed (or rather, setting the boost clock back to 1696.

As soon as I updated the driver to 372.09, bang, boost clcok was off like a rocket.

Agree with Beavis - the spiky terrain artifacts are probably memory glitches rather than core errors.

Slowly cranking up the 3770K now. Not a single crash yet.