5800X Boost set to 5050Mhz all cores with AMD Curve Optimizer

Shaolin Chicken · 25 Nov 2020 at 10:03

varkanoid said:
At least you have the option not got it on my MB

Seriously, just got my 240mm AIO and fitted it yesterday. My cinebench temp has gone from 82c to mac 70c quite pleased with it. Idles about 28c and in game so far its been around 48c-50c.

Think I will wait till they push past the beta BIOS and release a final one too before doing some more testing with PBO etc.

What AIO did you go for please?

varkanoid · 25 Nov 2020 at 10:32

Shaolin Chicken said:
What AIO did you go for please?

https://www.overclockers.co.uk/asus...cooler-with-oled-display-240mm-hs-04h-as.html

The animation on the pump is quite cool and you can put your own on there but its a bit pointless if you have your PC under a desk etc.
Also the 1 review on there says the fans are way too loud. I think he may have not installed the software as they default to 100% without software and I installed the software and have them currently at 40% fixed (dont like fan curves as the increase/decrease in fan speed (noise wise) does my nut in) and the temps are fine at the moment. Noise wise can hardly hear them and they
are doing about 1200rpm each.

Guest2 · 25 Nov 2020 at 11:41

varkanoid said:
https://www.overclockers.co.uk/asus...cooler-with-oled-display-240mm-hs-04h-as.html

The animation on the pump is quite cool and you can put your own on there but its a bit pointless if you have your PC under a desk etc.
Also the 1 review on there says the fans are way too loud. I think he may have not installed the software as they default to 100% without software and I installed the software and have them currently at 40% fixed (dont like fan curves as the increase/decrease in fan speed (noise wise) does my nut in) and the temps are fine at the moment. Noise wise can hardly hear them and they
are doing about 1200rpm each.

Thanks. Do you think it would be worth it swapping my Noctua nh-u14s for something like an ARCTIC Liquid Freezer II 280? My idle temps are around 28c, load 82c when running Cinebench R20 with PBO enabled. If I enable PBO +150Mhz then temps go up to 88/89c.
I have this case (bought from OCuK many years ago) Fractal Design Define R2 Midi Tower Case - Black Pearl

Shaolin Chicken · 25 Nov 2020 at 12:09

quoted wrong person.

Guest2 · 25 Nov 2020 at 12:33

Shaolin Chicken said:
Thank you, you are getting some great temps with that.

Sorry, with what? I'm currently using a Noctua nh-u14s in push pull (Idle temp 28c, load 82c)

I was interested in the ARCTIC Liquid Freezer II 280 in the hope of reducing load temps (if possible) by ~10-20c. Not sure if its worth the £100 cost and effort changing to it. Though it does have great reviews
Does anyone have the Arctic freezer 280 and a 5800X and can confirm default load temps in Cinebench with R20? (I expect not but worth asking)

varkanoid · 25 Nov 2020 at 12:34

Guest2 said:
Thanks. Do you think it would be worth it swapping my Noctua nh-u14s for something like an ARCTIC Liquid Freezer II 280? My idle temps are around 28c, load 82c when running Cinebench R20 with PBO enabled. If I enable PBO +150Mhz then temps go up to 88/89c.
I have this case (bought from OCuK many years ago) Fractal Design Define R2 Midi Tower Case - Black Pearl

I think the 280 will tame the top end I know its within acceptable range around 80c but I just dont like seeing a CPU go over 70c let alone 80c

Even if it only gets that high in a benchmark.

I used to have that case too its a really good one.

Shaolin Chicken · 25 Nov 2020 at 12:39

Guest2 said:
Sorry, with what? I'm currently using a Noctua nh-u14s in push pull (Idle temp 28c, load 82c)

I was interested in the ARCTIC Liquid Freezer II 280 in the hope of reducing load temps (if possible) by ~10-20c. Not sure if its worth the £100 cost and effort changing to it. Though it does have great reviews
Does anyone have the Arctic freezer 280 and a 5800X and can confirm default load temps in Cinebench with R20? (I expect not but worth asking)

Oops sorry quoted wrong person. Will edit.

LtMatt · 25 Nov 2020 at 12:49

Guest2 said:
I was interested in the ARCTIC Liquid Freezer II 280 in the hope of reducing load temps (if possible) by ~10-20c. Not sure if its worth the £100 cost and effort changing to it. Though it does have great reviews
Does anyone have the Arctic freezer 280 and a 5800X and can confirm default load temps in Cinebench with R20? (I expect not but worth asking)

I don't think you will get anywhere near to that kind of reduction to be honest. I'm a huge fan of these AIOs and the fans that come with them, but i suspect you'd be looking at 5-10c improvement at best.

Guest2 · 25 Nov 2020 at 13:46

Thanks both. Probably not worth it then. Gaming wise it only get up to 60c at the highest

steverebo · 25 Nov 2020 at 14:37

I keep getting random restarts no blue screen the system just restarts, will an unstable overclock cause this?

Guest2 · 25 Nov 2020 at 15:00

steverebo said:
I keep getting random restarts no blue screen the system just restarts, will an unstable overclock cause this?

Yep. Remove the overclock, does it still happen?

steverebo · 25 Nov 2020 at 15:03

I've disabled the curve optimiser settings and im looping firestrike to see if it restarts again. It was so random I cant force it to do it, it just happens at random light and heavy load

Kyranar · 25 Nov 2020 at 15:50

steverebo said:
I've disabled the curve optimiser settings and im looping firestrike to see if it restarts again. It was so random I cant force it to do it, it just happens at random light and heavy load

Have you checked your windows event log ?
I'm also getting random restarts without bluescreens (Im on a 5950x, all bios settings on default - no overclock at all)
Log shows
Kernel Power Event ID 41
which is in most cases followed by a
WHEA error (ID18, Processor core - Cache Hierarchy Error)

alec · 25 Nov 2020 at 16:01

steverebo said:
I keep getting random restarts no blue screen the system just restarts, will an unstable overclock cause this?

yep
sudden restart is pretty much the only failure mode for me. Haven't seen a blue screen yet.
occasionally game or program crashes out, that also means an overclock problem.

Find a 100% stable mode and tweak from there, one setting at a time. Unfortunately curve optimizer alone is 8 settings

(16 on a 5950x, good luck)
And every core needs to be tested at light and heavy loads

steverebo · 25 Nov 2020 at 16:16

I've disabled curve optimiser and just set 200mhz max boost. It seems to still be boosting to between 4950 and 5100 on single core with my strongest cores so fingers crossed it remains stable

varkanoid · 25 Nov 2020 at 18:19

LtMatt said:
I don't think you will get anywhere near to that kind of reduction to be honest. I'm a huge fan of these AIOs and the fans that come with them, but i suspect you'd be looking at 5-10c improvement at best.

Yeah 20c is a bit unrealistic. With a GPU its possible but the good CPU coolers generally are near each other although going from a 120mm to a 240mm has given me a reduction of -12c thereabouts when under 100% load benchmarking. Probably not worth the money but not had a 240mm before so I can afford it and why not.

JYH · 26 Nov 2020 at 06:49

So I finally got some time to tinker and test some more...
I am now able to get some of my cores past -5.

I kept what I think are my strongest cores (0,2,4) at -5 and changed the rest to -15.
I also changed some settings:
PBO Limits: MOTHERBOARD
PBO Scalar: 5x
MAX CPU PBO: 200MHz

Just want to mention that when I had all cores set at -5, MAX CPU PBO at 200MHz wasn't stable (150MHz was). 200MHz is now stable with these new settings.

Will be tinkering some more...

schoenzy · 26 Nov 2020 at 07:29

JYH said:
So I finally got some time to tinker and test some more...
I am now able to get some of my cores past -5.

I kept what I think are my strongest cores (0,2,4) at -5 and changed the rest to -15.
I also changed some settings:
PBO Limits: MOTHERBOARD
PBO Scalar: 5x
MAX CPU PBO: 200MHz

Just want to mention that when I had all cores set at -5, MAX CPU PBO at 200MHz wasn't stable (150MHz was). 200MHz is now stable with these new settings.

Will be tinkering some more...

Thanks man. Tried that and wasn't stable with scalar 5x, ran cpu-z bench fine but opening cinebench crashed. Got it stable with scalar 10x. Saw my all core boost sit around 4.7 on cpu-z bench, bumped both my ST and MT scores quite a bit. Cinebench scores didn't change as I hit temp limits. Going to mount my AIO at front as intake instead of top exhaust at some point soon.

Previous best with auto PBO limits, scalar 10x, -5 all core curve and +175MHz

With motherboard PBO limits, scalar 10x, -5 best 2 cores/-15 the rest, +200MHz

Guest2 · 26 Nov 2020 at 09:06

schoenzy said:
Going to mount my AIO at front as intake instead of top exhaust at some point soon.

I thought AIOs were supposed to be mounted in top exhaust?

alec · 26 Nov 2020 at 09:10

Guest2 said:
I thought AIOs were supposed to be mounted in top exhaust?

AIO intake puts colder air through it, improving performance somewhat. As long as tubes are on the bottom in a vertical mount, and pump is not lower than top of radiator, its fine.

Played all day with curve optimizer yesterday, and yeah, frustrating.

Finding intermittent instability is tricky. So far geekbench and Aida full benchmark suite are best at triggering sort of medium load crashes.

Cinebench is ok for hammering all cores, but puts too much load on them, so it doesn't boost as high and doesn't hit "youtube" instability cases.