RTX2080TI Fails if power limit over 105%

EvilPerm

EvilPerm

EvilPerm

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Joined
15 Jan 2020
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Hello


TLDR - RTX 2080 ti fails when trying to draw more than 320w (approx)



Help needed from a long time lurker. Any input would be greatly appreciated. I'll give as much detail as I can. In work currently and I stopped messing around at 2:00am "last night" so my replies will be slow and from memory.



Specs -



i9 9900ks @ 5ghz (stable)
Gigabyte Auros Master Z390 MB
Gigabyte RTX 2080 TI gaming oc (with WB) - (Stable @ stock)
32gb crucial 3200 ram (stable not oc'd yet)
2tb M.2 ssd
Corsair HX1000 (with custom cables from cablemod) - 2 seperate cables from PSU not a split cable
Thermaltake p5 "case"
Win 10 pro
g-sync monitor (inc this detail incase)
Custom loop (temps full load on gpu approx 61c max, CPU approx 70c max - set for silence, low temps when fans set higher...)


I set the power limit to 120% on MSI afterburner and tried to overclock the gpu - for hours...and hours. Every single 3dmark run would fail, overclocked or not.


In my frustration I decreased the power limit to 100%, put in +0mhz gpu oc and memory to +850 and it ran fine. I then tried +50mhz gpu oc and set the power limit to 105%, and it ran fine with a decent score (approx 15000+https://www.3dmark.com/spy/10182225) - Gave up on a semi high, so i stopped here on testing.

The problem I am having is when I increase the power limit in any overclocking tool (MSI/Gigabyte) the GPU flashes to a black screen on 3dmark and skips to the next test, then will fail that too.



Heaven bench runs fine at 120% but doesnt draw over 300w according to gpu-z.


Would this be a PSU fault? Single and Multi rail tested


Forgot - when power limit set to 120% it emits a little scream (lol) would this be the coil whine? It does get very noticable, but im fine with it.



First build in many years of saving, frustrated old man needs help! Thank you in advance.


And sorry if this is in the wrong thread.
 
Last edited:
What can you get out of the card ignoring the power limit changes?

Your memory overclock figures sound good, I think mine runs around 2000 Core / +500 memory, it's been ages since I set it up.

I guess perhaps the point i'm trying to make is if you can get around the average overclock without playing with the power limits - I'm not sure you'd gain a lot vs the time spent achieving etc.

I don't remember seeing much difference between my manual OC and just letting the card do it's own boosting.
 
Webzta said:
What can you get out of the card ignoring the power limit changes?

Your memory overclock figures sound good, I think mine runs around 2000 Core / +500 memory, it's been ages since I set it up.

I guess perhaps the point i'm trying to make is if you can get around the average overclock without playing with the power limits - I'm not sure you'd gain a lot vs the time spent achieving etc.

I don't remember seeing much difference between my manual OC and just letting the card do it's own boosting.
Click to expand...


My last test before I gave up -

Power Limit % - 105%

Core Clock - +60 (3d mark shows as 2070 upon completion)

Memory Clock - +850 (3dmark shows 1963 "")https://www.3dmark.com/spy/10182225

If I left to do its own thing with power limit of 100% its fluctuats around 1960 to 2010

Will try setting up the curve via MSI later.

I am a "bit new" to this and trying to get the most of my system and have caught a bit of the OC'ing bug, I am sure many here know what that is like :P

And again many thanks for the advice.
 
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