Personal computing discussed

Moderators: renee, Starfalcon

 
Noinoi
Gerbil Team Leader
Topic Author
Posts: 280
Joined: Fri Jun 26, 2015 11:31 pm
Location: Sabah, Malaysia

Would better cooling help with high-frequency stability at the same voltage or lower?

Sat Dec 15, 2018 9:25 am

After lots of wrangling in BIOS settings, I've managed to eke out a fully stable 4.9 GHz at 1.37V on a 9600K. The temperatures are quite high, though - it averaged 90 degrees Celsius. At least there's no thermal throttling, but now I'm wondering if a significantly better cooler than an aging H60 - a carryover from my Haswell setup - might increase frequency headroom at the same or similar voltages.
[email protected] | Patriot 2x16GB | Asus GTX 970 | Aorus Z390 Pro Wifi | Intel 660p 512GB + Kingston Fury 240GB + 2x4TB WD HDDs | Win 10
 
Krogoth
Emperor Gerbilius I
Posts: 6049
Joined: Tue Apr 15, 2003 3:20 pm
Location: somewhere on Core Prime
Contact:

Re: Would better cooling help with high-frequency stability at the same voltage or lower?

Sat Dec 15, 2018 9:53 am

Coffee Lake R/Coffee Lake are going to be toasty when fully loaded. There's just too much thermal density. You need high-end cooling/exotic cooling if you want 70C or below when fully loaded. Air-cooling is just not quick enough. Intel never intended on using 14nm for six and eight-core chips on a mainstream SKUs or wanted 14nm silicon to operate at such high clockspeeds. There's a reason why Skylake-X LCC and Skylake-X HCC never had such high clockspeeds when fully loaded.

Coffee Lake and Coffee Lake R are just a stopgap designed to beat the Ryzen/Ryzen+. No matter the cost. They are totally a throwback to Pentium 4 Extreme Edition chips and its lesser siblings back when K8s were providing serious competition in the desktop market.

FYI, My current 9700K climbs up to 90C+ at stock if I were to use MCE and don't touch AVX offset with a Noctua NH-U9S (using two 92nm fans) under Prime95/Linpack stress tests. AVX offset of 2 and 3 only manages to tame the chip to 80-84C under the same tests. Under my normal workloads, it barely goes above 60C.
Gigabyte X670 AORUS-ELITE AX, Raphael 7950X, 2x16GiB of G.Skill TRIDENT DDR5-5600, Sapphire RX 6900XT, Seasonic GX-850 and Fractal Define 7 (W)
Ivy Bridge 3570K, 2x4GiB of G.Skill RIPSAW DDR3-1600, Gigabyte Z77X-UD3H, Corsair CX-750M V2, and PC-7B
 
Noinoi
Gerbil Team Leader
Topic Author
Posts: 280
Joined: Fri Jun 26, 2015 11:31 pm
Location: Sabah, Malaysia

Re: Would better cooling help with high-frequency stability at the same voltage or lower?

Sat Dec 15, 2018 11:34 am

Hmm... seems like I might have possibly mucked up a few things along the way, since the system appears to be sufficiently stable at 1.30V now that I've reset the BIOS settings and reconfigured the overclock. A 82C average is far more acceptable. There still won't be enough thermal headroom for 5GHz, though, as is - it kept crashing out even at 1.38V and I don't feel like going with even more juice with the current cooling due to very high temps past 1.37V.

No comment on the Coffee Lake opinion, though.
[email protected] | Patriot 2x16GB | Asus GTX 970 | Aorus Z390 Pro Wifi | Intel 660p 512GB + Kingston Fury 240GB + 2x4TB WD HDDs | Win 10
 
JustAnEngineer
Gerbil God
Posts: 19673
Joined: Sat Jan 26, 2002 7:00 pm
Location: The Heart of Dixie

Re: Would better cooling help with high-frequency stability at the same voltage or lower?

Sat Dec 15, 2018 11:51 am

The new Core i7-9700K is pushing my H100i v2 to its limit. I'm considering swapping it out for a NH-D15 with third fan that I have available.
· R7-5800X, Liquid Freezer II 280, RoG Strix X570-E, 64GiB PC4-28800, Suprim Liquid RTX4090, 2TB SX8200Pro +4TB S860 +NAS, Define 7 Compact, Super Flower SF-1000F14TP, S3220DGF +32UD99, FC900R OE, DeathAdder2
 
cegras
Gerbil First Class
Posts: 193
Joined: Mon Nov 05, 2007 3:12 pm

Re: Would better cooling help with high-frequency stability at the same voltage or lower?

Sat Dec 15, 2018 12:10 pm

Silly question, is 4.9 Ghz your all-core turbo? My six core multiplier is 46x and I'm wondering if I can push it further.
 
TwistedKestrel
Gerbil Elite
Posts: 686
Joined: Mon Jan 06, 2003 4:29 pm

Re: Would better cooling help with high-frequency stability at the same voltage or lower?

Sat Dec 15, 2018 2:28 pm

To answer the premise of your original question -

Yes. Power consumption rises with temperature, this is more easily measurable/noticeable with GPU overclocking. The degree to which it would help in your case, I can't tell you. Taking a look at this --> https://www.anandtech.com/show/13400/in ... -review/21 may help you figure out how much heat disappation you should be looking for.

It should be easy to do better than an H60, though. If you already bought a 9600K you shouldn't need too much of an excuse to spring for a good 240mm/280mm cooler
 
Noinoi
Gerbil Team Leader
Topic Author
Posts: 280
Joined: Fri Jun 26, 2015 11:31 pm
Location: Sabah, Malaysia

Re: Would better cooling help with high-frequency stability at the same voltage or lower?

Sun Dec 16, 2018 5:39 am

cegras wrote:
Silly question, is 4.9 Ghz your all-core turbo? My six core multiplier is 46x and I'm wondering if I can push it further.


Yeaqh, 4.9 GHz for all six cores. Uncore ratio is still at 43x, though I've been increasing it in steps as of today. Also, I'm now running it at 1.31V due to an unexpected crash during a 3DMark stress test - though I might dial it back to 1.30V because then I found that the video card's no longer holding my old OC stably.

TwistedKestrel wrote:
It should be easy to do better than an H60, though. If you already bought a 9600K you shouldn't need too much of an excuse to spring for a good 240mm/280mm cooler


I'm thinking of foregoing anything involving liquids and hoses, to be honest, but if a 240/280mm cooler works even better... I'm all ears.

Been planning to get a new cooler anyway - this H60 is tiding me over. Surprisingly it managed 4.9 GHz.
[email protected] | Patriot 2x16GB | Asus GTX 970 | Aorus Z390 Pro Wifi | Intel 660p 512GB + Kingston Fury 240GB + 2x4TB WD HDDs | Win 10
 
DancinJack
Maximum Gerbil
Posts: 4494
Joined: Sat Nov 25, 2006 3:21 pm
Location: Kansas

Re: Would better cooling help with high-frequency stability at the same voltage or lower?

Sun Dec 16, 2018 10:55 am

Only posting this because it's the most recent HSF review on H/OCP so it has up to date info. https://www.hardocp.com/article/2018/12 ... r_review/3

Of course a huge radiator with 2+ fans is going to cool better than most air coolers. Just physics. The H100 and up from Corsair look to be pretty good performers at the top, even if they do get a little loud at times. Something like the H115i looks to be right up at the top.
i7 6700K - Z170 - 16GiB DDR4 - GTX 1080 - 512GB SSD - 256GB SSD - 500GB SSD - 3TB HDD- 27" IPS G-sync - Win10 Pro x64 - Ubuntu/Mint x64 :: 2015 13" rMBP Sierra :: Canon EOS 80D/Sony RX100
 
Aranarth
Graphmaster Gerbil
Posts: 1435
Joined: Tue Jan 17, 2006 6:56 am
Location: Big Rapids, Mich. (Est Time Zone)
Contact:

Re: Would better cooling help with high-frequency stability at the same voltage or lower?

Thu May 23, 2019 10:10 am

www.frostytech.com

Their current best is Cooler Master Nepton 280L.

I believe the only way to get better than that is to go with custom loop with a larger radiator.

Maybe a 360mm or 420mm 6 fan setup would do it.

Being only 8c above ambient while cooling a 200w cpu is a quiet an achievement.
Main machine: Core I7 -2600K @ 4.0Ghz / 16 gig ram / Radeon RX 580 8gb / 500gb toshiba ssd / 5tb hd
Old machine: Core 2 quad Q6600 @ 3ghz / 8 gig ram / Radeon 7870 / 240 gb PNY ssd / 1tb HD

Who is online

Users browsing this forum: No registered users and 1 guest
GZIP: On