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Post by heartofdarkness on Jun 11, 2016 9:59:19 GMT -5
Hi lads,
I believe I should lap my 5820k: after about 10 remount, I still have a huge difference in temps (12c) between cores.
Cores 1 to 5 stay between a 5c range while core6 is 12C cooler than core 3 and 5:
@4.8GHz/1.32v
- #1: 77c
- #2: 80c
- #3: 82c
- #4: 79c
- #5: 83c
- #6: 71c
This start appearing from 4.6GHz (1.22v) and above. @4.5GHz there is a 5/6c difference between cores.
What do you think, as it would suck to lose the warranty for a couple of degrees if there is no reduction in the gap...
Thanks for you input!
HoD.
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Post by Mr.Scott on Jun 11, 2016 10:57:11 GMT -5
Lapping is not worth it.
You need to de-lid and replace the TIM. This will also void the warranty. Personally, I wouldn't do either. Your temps are fine. There will always be a difference between cores.
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Post by heartofdarkness on Jun 11, 2016 11:22:47 GMT -5
Thanks Scotty!
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Post by ShrimpBrime on Jun 11, 2016 11:34:53 GMT -5
A de-lid will probably net a 10c loss in temps. Since the CPU will likely never break..... Well you've overclocked it and void warranty any ways..... Gonna sell it when ZEN is released and loose money either way....
De-lid it.
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Post by heartofdarkness on Jun 11, 2016 13:24:14 GMT -5
Well, I don't see really a reason de-lidding a 5820: IHS is soldered... But you're right, I am impatient about Zen  |
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Post by Macsbeach98 on Jun 11, 2016 17:42:03 GMT -5
I wouldnt worry about delidding it Yes its soldered on if you do you will get pennies for it if you sell it The temps look OK they will run Ok up to 100 degrees to which it would while running XTU And Zen looks like release has been pushed back until mid 2017.  That sounds all too familiar from AMD I am a bit sceptical about Zen these days Jim Keller left AMD again before testing on Zen even began. I know if it doesnt live up to the expectations and I really hope it does it wont be on my shopping list. |
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Post by Mr.Scott on Jun 11, 2016 19:04:03 GMT -5
I heard only Q1 2017.
Keller is a genius mercenary. His work at AMD was done, time to move on. He's done that everywhere he's gone.
I personally think Zen is on the level. I WILL be indulging on one after some research on the good boards.
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Post by heartofdarkness on Jun 11, 2016 19:04:49 GMT -5
Mid 2017... Not surprising from AMD as you say...
Nothing really exciting CPU wise for the year then.
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ShrimpBrime offline
Guest
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Post by ShrimpBrime offline on Jun 11, 2016 19:06:59 GMT -5
Oh the 5820 is soldered? Then I subtract my earlier posting.
Delayed till Jan? No bother to me any! Another Birthday Build yay!
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Post by heartofdarkness on Jun 11, 2016 19:18:35 GMT -5
Well, at least it gives me time to save some cash!
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Post by Macsbeach98 on Jun 11, 2016 20:28:56 GMT -5
I agree on the cash part if its as good as Haswell-E or Broadwell expect similar pricing.
AMD know how to charge too
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Post by ozz on Jun 11, 2016 21:00:18 GMT -5
a question, hypothetically , say you had to return it for warranty, how would (do) they know if its been overclocked or not ?
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Post by Mr.Scott on Jun 12, 2016 7:28:27 GMT -5
They don't, unless you tell them.
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Post by Macsbeach98 on Jun 12, 2016 9:11:27 GMT -5
Yep you keep your mouth shut. Or you could say I have been running this CPU under nitrogen and it just stopped I want it replaced.  |
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Post by ShrimpBrime on Jun 12, 2016 10:34:46 GMT -5
I'm sure if a rep at AMD wanted to investigate..... the place to go is HWBot. They'll see submissions with overclocks on the chip.
They don't do that however. It's a waste of man power. Just give the lad a new chip!
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Post by heartofdarkness on Jun 12, 2016 14:49:15 GMT -5
Well, I believe a big part of the chip cost is R&D. And enthusiast users are the best ambassadors for CPU/GPU makers. It's a fair game |
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Post by georgekokovinis on Jul 8, 2016 15:54:50 GMT -5
My 0.02 cents in this thread.
1) Forget de-lidding Haswell-E.
2) Pete, having used 7x5960X, 4x5930K and 6x5820K, I can verify that stability of Haswell-E above 80 degrees is strongly compromised
and it is only a matter of a few seconds to crash.
Furthermore, sustained workload at the 80 degrees region reduces dramatically the life span of the processor, especially if the cache
voltage is above 1.35.
3) Lapping is a big NO-NO on Haswell-E. Liquid metal paste is again a big NO-NO.
Best TIM after hundreds of tests ( by a significant margin ) is Gelid extreme.
4) What you CAN lap with impressive results is the water block. Start with 320 and work it up to mirror shine with 800-1200-2000.
Clean thoroughly with Arctic clean part 1&2 and wipe.
Final lapping with 2000 for 5 minutes, re-clean and final drying.
Apply Gelid Extreme and enjoy -4 to -6 degrees.
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Post by heartofdarkness on Jul 15, 2016 18:03:45 GMT -5
Well, I lapped it after checking the IHS regularity: looking like desert dunes under the moon light! Got a 6/8c improvement through all cores. Was running 4.8GHz/1.3v/72c-83c (through 6 cores). Now running 4.83 /1.3GHz/64-76. Will order Gelid and lap WB as soon as I get the WB for the 780 ti I'll borrow in a couple of weeks. (Screen shot attached). Attachments:
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Post by Mr.Scott on Jul 15, 2016 18:06:24 GMT -5
Good results for just lapping. Nice.  |
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Post by heartofdarkness on Jul 15, 2016 18:11:50 GMT -5
Thanks!
I'll follow MacsBeasch advice and do the WB in a couple of weeks and use Gelid.
The IHS on my chip was really lookinh like s..t! I don't know why they put this hole : it just mis-shape the whole thing...
Edit: 4.83GHz/1.3v "looks like it might be maybe stable" is gooooood!!! 30 mis in P95, and running!
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Post by Mr.Scott on Jul 15, 2016 18:24:16 GMT -5
The hole is a vent.
AMD has a vent too, but it's not a hole. It's a small gap between the PCB and IHS on one side of the processor. Much smarter IMO.
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Post by heartofdarkness on Jul 15, 2016 18:33:53 GMT -5
Well, that's pretty meh from Intel. It might be a 10th of a mm high! BTW, P95 crashed after 35 mins. Might have been a bit optimistic with 4.832/1.3v  |
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Post by Macsbeach98 on Jul 16, 2016 2:49:06 GMT -5
Socket 478, Sandy-E, Ivy-E, Haswell-E all have the hole.
Core 2, Nehalem, Gulftown, Sandy, Ivy, Haswell, Skylake have a gap like the AMD's
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Post by heartofdarkness on Jul 16, 2016 6:16:09 GMT -5
It's my first "high end" CPU from Intel. Didn't know about it, thanks guys!
I understand the gap between the PCB and IHS with AMD, but a hole on the IHS? As soom as you put thermal paste and HSF/block, there is no vent anymore...
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