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post #2511 of 2517 (permalink) Old 05-11-2020, 02:54 PM
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Quote: Originally Posted by {EAC} Shoot em UP View Post
Real bench instability, I have not gotten in error in hwinfo in weeks. I only seemed to get errors in hwinfo when my voltage was way, way too low (I think anyways, these would be WHEA errors correct?).

I just woke up to an 8 hour successful realbench run. RAM and CPU overclocked as previously stated. Max package temp of 91, average of 80 (the average is a bit low as the test ended about 30 minutes ago) and the cores never even hit 90’s.

Finally, feeling like things are stable! Just need to see if I can dial the vcore, SA and IO back a bit. 1.25 SA and IO, 1.270 VR VOUT under load. But I am looking at idle, VR VOUT is 1.324.... so I get pretty HUGE vdroop under load. Hmm, I had not noticed it was that bad previously. This makes me think I am giving it way too much voltage at idle then it needs. Suggestions?

Edit: just ran across a reddit post that yourself and elmor posted in. He stated something like “high idle voltage is not bad, and transient spikes are not horrible as long as they are not large, you want to avoid high voltage at high amperage”. The high V and A makes plenty of sense, but with that, should my VR VOUT really be dropping from 1.324 to 1.270!?! At least this helps me understand my load voltage needs are ~1.270, jut not sure if I should change my load line settings to try and reduce that droop some..?
Actually this is a lot safer then less drop. The overshoot will be a lot higher with higher LLC. This is a pretty normal drop. I run 1.306v idle as well and with my LLC it drops to 1.248v under AVX loads and about 1.264v in lighter applications like games. I run 5.1/4.8 on pretty similar temps. Also, I run more IO/SA lol. 1.31v IO 1.26v SA as my IMC / RAM needs that for 4266 CL16.

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post #2512 of 2517 (permalink) Old 05-11-2020, 03:19 PM
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Quote: Originally Posted by Imprezzion View Post
[

Actually this is a lot safer then less drop. The overshoot will be a lot higher with higher LLC. This is a pretty normal drop. I run 1.306v idle as well and with my LLC it drops to 1.248v under AVX loads and about 1.264v in lighter applications like games. I run 5.1/4.8 on pretty similar temps. Also, I run more IO/SA lol. 1.31v IO 1.26v SA as my IMC / RAM needs that for 4266 CL16.
Yea, I have read about the overshoot “situation” as well, but I am just not totally sure it all works. From my knowledge of past CPU’s, you wouldn’t want THAT much vdroop. But, it’s also possible with this “new?” VR VOUT voltage monitoring (I’m used to just vcore via CPUZ), maybe this was just always the case and I was just naive to it, or it was generally less understood and we now have a better understanding and a way for us simple folk who are not going to solder in leads for an O-Scope to see the true voltage numbers.

Thanks for the input!

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post #2513 of 2517 (permalink) Old 05-11-2020, 03:38 PM
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Quote: Originally Posted by {EAC} Shoot em UP View Post
Quote: Originally Posted by Imprezzion View Post
[

Actually this is a lot safer then less drop. The overshoot will be a lot higher with higher LLC. This is a pretty normal drop. I run 1.306v idle as well and with my LLC it drops to 1.248v under AVX loads and about 1.264v in lighter applications like games. I run 5.1/4.8 on pretty similar temps. Also, I run more IO/SA lol. 1.31v IO 1.26v SA as my IMC / RAM needs that for 4266 CL16.
Yea, I have read about the overshoot “situation” as well, but I am just not totally sure it all works. From my knowledge of past CPU’s, you wouldn’t want THAT much vdroop. But, it’s also possible with this “new?” VR VOUT voltage monitoring (I’m used to just vcore via CPUZ), maybe this was just always the case and I was just naive to it, or it was generally less understood and we now have a better understanding and a way for us simple folk who are not going to solder in leads for an O-Scope to see the true voltage numbers.

Thanks for the input!
Vdroop and transient response was easier to manage with fewer cores and less power.
My previous 7700k was doing fine even on the strongest LLC on my Asus Maximus Extreme with oversized power delivery for just a 4 cores CPU...
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post #2514 of 2517 (permalink) Old 05-12-2020, 02:18 AM
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True. I've been fighting L0 errors myself as well trying to dial down my OC a bit actually lol. I wanna step down to 5.0/4.7 to dump a bit less heat into the case and thus attempting to drop my GPU radiator (which is top outtake) temps a bit.

Problem I'm having is that the CPU seems stable in Prime95 Small AVX enabled just fine and barely touches 80c core 82c package but it does give L0 errors. I can make them go away by just adding a bunch of vcore (+0.060 in stead of +0,005) but that doesn't drop temps at all compared to 5.1/4.8 which wierdly enough is stable without L0 errors on the exact same 0.060 offset and same load VR Vout voltage..

That's why I'm thinking something else is also contributing to the L0 errors like my RAM OC for example. Well, time to continue testing . Working from home anyway so plenty of time to just test some random combinations of vcore, clocks and RAM settings.

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post #2515 of 2517 (permalink) Old 05-12-2020, 02:30 PM
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What's a good uncore/cache clock stress test tool to test if my uncore ratio OC is stable? Does the RealBench 2.56 do the job?

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post #2516 of 2517 (permalink) Old 05-12-2020, 08:15 PM
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Quote: Originally Posted by ViTosS View Post
What's a good uncore/cache clock stress test tool to test if my uncore ratio OC is stable? Does the RealBench 2.56 do the job?
From Falkentyne who knows a thing or two about a thing or two:
"Some things you can use to test IMC relation to CPU stability (Cache, possibly RAM):

1) AIDA64 "Stress Cache"->HWinfo64 sensors "WHEA" section and look for errors.
2) Prime95 29.8 build 6, 112K-112K in-place AVX *Disabled* --look for CPU Cache L0 errors in HWinfo64.
3) Prime95 29.8 b6, 256-512K (not in place), AVX disabled, look for L0 errors or crashed threads."

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post #2517 of 2517 (permalink) Old 05-14-2020, 02:56 AM
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I've been trying some random stuff while i'm bored working from home lol.

I wanted to make sort of a summer / lower temperature overclock profile for my 9900K just to limit internal case temps and not let the GPU rad which is my outtake get overwhelmed with hot air from the CPU rad which is intake (seperate loops). Plus, it's nice and cold here now at 19-22c but in the summer even with AC it can quite quickly get up to 26-32c here indoors so.. Just wanted to take precautions.

So, I daily 5.1/4.8 HT On @ 1.306v BIOS (+0.060 offset) which runs about 1.248v VR VOut under full Prime95 AVX Small FFT load and sits in the mid to high 80's (Celsius).
I made a new profile at 5.0/4.7 @ 0.005 offset which is around 1.19v VR VOut load and this drops temps to the mid to high 70's so much better.

Now, I have a second idea.. that's what i wanted to ask here..
I am currently testing 5.1/4.8 and even 5.2/4.9 without HT. Temps are much lower and without HT 5.1/4.8 only needs about +0.025 offset (1.21v VR VOut) and runs way way cooler. But, would you run 5.0/4.7 with HT or 5.1/4.8 without HT.. That is the big question. Did anyone ever try this?

I mean, a synthetic bench wouldn't really show a honest difference as HT scores are always way higher. I might compare the GPU scores in Time Spy Extreme with HT and without HT tho for example. I have plenty of saved results from my 2080Ti @ 2175/7800 with HT on so i can compare that..

EDIT: Time Spy tells me nothing lol. The graphics scores between HT on and HT off are within 30 points of eachother. 16571 and 16544..

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-Current daily: '07 Ford Focus 1.6 Futura.
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6GB completely random 1 and 2GB sticks. All 4 different ones.
Hard Drive
A-Data 120GB SSD
Power Supply
AOpen 350w
Cooling
Some huge aluminum Xeon heatsink
Case
Cartboard box.
Operating System
W10 Pro x64
CPU
Intel Xeon E3-1270v1 @ 3.8Ghz
Motherboard
ASUS P8H61-i R2.0
GPU
Sapphire R9 280X Vapor-X @ 1230Mhz core.
RAM
16GB Kingston HyperX Savage 2400CL11 @ 1333CL6
Hard Drive
Kingston 240GB SSD
Power Supply
Corsair CX600
Cooling
Corsair H110i GTX
Case
Custom open test bench made from a cut-up CM690 v1
Operating System
W10 Pro X64
Monitor
Samsung 23" cheap thing
Keyboard
Cheapest one Aldi had
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Cheapest one Aldi had
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The desk...
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Last edited by Imprezzion; 05-14-2020 at 03:25 AM.
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