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post #1091 of 7252
Quote:
Originally Posted by djgar View Post

Hmmm ... what could possibly be faster than a lapped 6950X with holes on crack??? eek.gif

In a what can be RMA'd race, the unlapped CPU wins, every time. biggrin.gif
post #1092 of 7252
Is OCCT a reliable stress test? Got my hands on a 6900k, and i need 1,35v to maintain stability at 4.2ghz. I can run RealBench for hours with much lower voltage.
post #1093 of 7252
Quote:
Originally Posted by lickadonkey View Post

Is OCCT a reliable stress test? Got my hands on a 6900k, and i need 1,35v to maintain stability at 4.2ghz. I can run RealBench for hours with much lower voltage.

heavier than both x264 v2 and realbench as my experience with 5960x and 6950x:mad:
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post #1094 of 7252
Quote:
Originally Posted by ocvn View Post

Basha, i think you will need around 1.31, 1.32 for fully stabe. what code of ur bsod?
HWe: bsod 101 increase vrin, bsod 127 increase vcore
BWe: bsod 101 increase vcore, bsod 127 increase vrin.
other bsod might be ram or cache
I test with RB 50 round, 20 round x264 v2 high and final is 1 or 2 hours OCCT high.

Hmm.. I see..it was the 'CLOCK_WATCHDOG_TIMEOUT' error - didn't see what code it was. The funny thing is everything else is stable (gaming @ 5K for hours) at 1.270V so it seems weird that I have to increase the voltage to 1.31 or 1.32V just to get encoding to be stable? Can someone explain that to me?
Quote:
Originally Posted by DarkIdeals View Post

You're saying that its crashing at 4.3ghz at 1.29v correct? What specific error message are you getting? Watchdog? Whea_uncorrectable_error? etc..

Your cache is only at 3.1ghz so there's zero need to change that, and honestly the cache voltage does a good enough job of regulating itself for the most part. If you were running cache at 3.7-3.8ghz and 3200mhz RAM or something, i might say to manually change cache voltage and system agent perhaps. But with 2800mhz RAM and 3.1 cache you're fine.

It seems like core voltage is what you need, what kind of cooling do you have? If your cooling is adequate you can go to 1.4v without issue fairly safely. My 6800K won't get 4.4ghz till i set it at 1.35v, and won't be stable at 4.5ghz even at a massive 1.5v!!!! (which is infuriating to the extreme since my 5960X could hit 4.5ghz at 1.3v, and i could squeeze the extra 100mhz to 4.6ghz by pushing it a bit over 1.4v. No such luck on broadwell, 4.5ghz is just impossible no matter the voltage even on custom water cooling with 1,280mm of radiator space)

For 4.3ghz i would try going to ~1.32v and see how it responds. I don't think you should have to go much over 1.35v even worse case scenario considering your 4.2ghz voltages being fairly low; but it's possible depending on your cooling.

Yes, it was the 'CLOCK_WATCHDOG_TIMEOUT' error. I have the 3200Mhz RAM (64GB) so I'm just using XMP to run it. Okay, it looks like I'll have to try 1.31V or 1.32V and try to encode again. I'm using the Kraken X60 with 2x 140mm Noctua fans - it's amazing and cools really well. At 1.270V, the hottest core gets to around 70C.
Quote:
Originally Posted by Silent Scone View Post

Need more info, revert memory and cache settings to default and run the encode again.

Memory is at XMP (3200Mhz) and Cache is default - I haven't changed anything with that yet. I guess I'll try a higher V-Core and see if that helps.
     
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post #1095 of 7252
Quote:
Originally Posted by Baasha View Post

Hmm.. I see..it was the 'CLOCK_WATCHDOG_TIMEOUT' error - didn't see what code it was. The funny thing is everything else is stable (gaming @ 5K for hours) at 1.270V so it seems weird that I have to increase the voltage to 1.31 or 1.32V just to get encoding to be stable? Can someone explain that to me?
Yes, it was the 'CLOCK_WATCHDOG_TIMEOUT' error. I have the 3200Mhz RAM (64GB) so I'm just using XMP to run it. Okay, it looks like I'll have to try 1.31V or 1.32V and try to encode again. I'm using the Kraken X60 with 2x 140mm Noctua fans - it's amazing and cools really well. At 1.270V, the hottest core gets to around 70C.
Memory is at XMP (3200Mhz) and Cache is default - I haven't changed anything with that yet. I guess I'll try a higher V-Core and see if that helps.

Encoding is much more stressful than gaming, not to mention it's going to use all of your cores.
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post #1096 of 7252
Quote:
Originally Posted by Baasha View Post

Hmm.. I see..it was the 'CLOCK_WATCHDOG_TIMEOUT' error - didn't see what code it was. The funny thing is everything else is stable (gaming @ 5K for hours) at 1.270V so it seems weird that I have to increase the voltage to 1.31 or 1.32V just to get encoding to be stable? Can someone explain that to me?
Yes, it was the 'CLOCK_WATCHDOG_TIMEOUT' error. I have the 3200Mhz RAM (64GB) so I'm just using XMP to run it. Okay, it looks like I'll have to try 1.31V or 1.32V and try to encode again. I'm using the Kraken X60 with 2x 140mm Noctua fans - it's amazing and cools really well. At 1.270V, the hottest core gets to around 70C.
Memory is at XMP (3200Mhz) and Cache is default - I haven't changed anything with that yet. I guess I'll try a higher V-Core and see if that helps.

a CWTO bsod is one or more of vcore, vccin, LLC, and vcache if the ram is in good order.
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post #1097 of 7252
Quote:
Originally Posted by Kana Chan View Post

http://www.enterprisetech.com/2016/06/29/ebays-billion-daily-transactions-cooled-water/
There's a 200W E5 V4 for Dell
Interesting that they compared it to a 14core system vs 16/18/22... They are talking about queries (vs heavy compute) so eventually the memory, disk, network are going to bottleneck perhaps they'd already seen diminishing returns there and didn't bother trying to cool anything more?

Either way, I'd love a 200W+ 14-16 core unlocked chip. I am more than happy to give it a nurturing home and lovingly remove as much as heat as it wants to make. thumb.gif
post #1098 of 7252
Quote:
Originally Posted by Baasha View Post

Hmm.. I see..it was the 'CLOCK_WATCHDOG_TIMEOUT' error - didn't see what code it was. The funny thing is everything else is stable (gaming @ 5K for hours) at 1.270V so it seems weird that I have to increase the voltage to 1.31 or 1.32V just to get encoding to be stable? Can someone explain that to me?
Yes, it was the 'CLOCK_WATCHDOG_TIMEOUT' error. I have the 3200Mhz RAM (64GB) so I'm just using XMP to run it. Okay, it looks like I'll have to try 1.31V or 1.32V and try to encode again. I'm using the Kraken X60 with 2x 140mm Noctua fans - it's amazing and cools really well. At 1.270V, the hottest core gets to around 70C.
Memory is at XMP (3200Mhz) and Cache is default - I haven't changed anything with that yet. I guess I'll try a higher V-Core and see if that helps.

Watchdog is Vcore.
Some temp test with 4.3GHz@1.33V@3600 cache@3000 XMP gskill
Ambient 20 C
Aida64 and x264 v2 encode


IBT

Stable test OCCT
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post #1099 of 7252
Quote:
Originally Posted by Martin778 View Post

Sure:


Hello, can you describe if you covered that hole for the duration of lapping? Did you put something like blu-tack there?
post #1100 of 7252
No, it's a magical hole - put some TIM on it and it comes out right away, seriously. biggrin.gif

BTW I can't seem to get stable @ 4.3GHz, shame. Not sure what I'm doing wrong since my Vcore is already 1.34V.

I've seen people sand off the whole IHS down to bare die but that would mean there won't be enough presssure on CPU block, same as with delid mad.gif
Well, unless you leave the IHS leftover, fill the whole space between the die and the 'ring' thats left of the IHS and fill it with some non condtive laquer or high temp sillicone and throw enough CLU on the die.
Edited by Martin778 - 7/6/16 at 2:02pm
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