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5820k and Asrock X99 Extreme 6 advices needed...

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Tír na nÓg

Member
Joined
Sep 19, 2015
Hi all,

So, i took some time to test my freshly arrived 5820k.

The cpu is not a star, not a dog either: 12hours P95 [email protected]/1.28v. [email protected]/1.1v.

But I have 2 concerns:

- I use a Swiftech H240X, and temps went all the way to 90°C under P95. Is'nt it a tad high? I remounted the block a few times. Pump is working fine, and fans are on 70/80% speed. Ambient around 25°C.

- I have 3600/Cl17 Trident Z Ram, and no way to increase BCLK to 125MHz... Just not working, and I can't do better than running the [email protected]/14-15-15-38...

Any input welcome! ;)
 

ATMINSIDE

Sim Racing Aficionado Co-Owner
Joined
Jun 28, 2012
Temps are normal for your overclock and cooling.

Try bumping the VCCSA a bit to help with the RAM stability. How much RAM are you running?
Your board should let you change the bclk... Probably even through setting XMP.
 
OP
Tír na nÓg

Tír na nÓg

Member
Joined
Sep 19, 2015
Thanks ATMINSIDE.

I am running 4x4GB.

When trying to run the [email protected], even with the [email protected]/cl18, I have no post and a debug code "bd" (memory related I think).

What's weird is that the DDR runs flawlessly @3200/Cl14 but with any increase in BCLK, the rig wo't post...
 

JrClocker

AKA: JrMiyagi
Joined
Sep 25, 2015
I had issues with my 5820K getting it to post with a BCLK of exactly 125 MHz. Try going slightly higher or lower for the BCLK (like 124.9 or 125.1...whatever the board will lock into). That solved the issue for me.

Also, your temps seem normal for the chip and the cooling.

I use a different cooler, but when I run my chip at 4.5 GHZ and 1.28 V, I peak out at around there too.

I am not sure if you know this, but when running with a water cooler, it takes about 20 to 30 minutes for the cooling loop to saturate. Said differently, as you run it, the coolant heats up (as well as the processor temperature) until it reaches the steady state...usually takes about 20 to 30 minutes.

I run my machine at 4.3 GHz for a daily overclock...this keeps my temps below 70 C with ambients as high as 30 C (Florida in the summer!)

Good luck!
 

EarthDog

Gulper Nozzle Co-Owner
Joined
Dec 15, 2008
Location
Buckeyes!
Haswell-E can't really support such fast ram speeds. Much above 3000-3200Mhz it tends to peter out. Id just leave the memory where it is as well as the BCLK at 100.

To be clear, you tried the XMP profile and it failed? Your bios is updated to the latest version, yes?!
 
OP
Tír na nÓg

Tír na nÓg

Member
Joined
Sep 19, 2015
Well... Finqlly got it to [email protected], but the memory doesn't want to go anything higher than 3200/Cl14, which is not bad BTW...

Will spend tome tweaking this weekend, try to break the XTU 2K barrier... Did 1953 yesterday.

Thanks all for your advice!
 
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