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i7 3820 temps

Mynight

Mynight

Mynight

Soldato
Joined
16 Jun 2013
Posts
5,413
Hello all,

I recently built my new pc and am currently getting temps at 32 degrees idle and 55 under full load(prime on burn in) for 2 hours.

Core difference between all 4 is at 6 degrees, is it supposed to be such a large difference?

Now my question is that a good temp for this cpu under water?

I'm not sure if the water block is seated correctly. I know I'll lose a few degrees (if that) when the arctic silver 5 beds in properly.

Look good or re-seat the block?
 
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I seem to have got lucky with chips again :D

5.1ghz at 1.4v these straps bring a whole new level to overclocking from my old 955.

41 x 125. Temps are not so great but the ambient in my area today is horrible so it may improve. (Idle-42 load-77) and I'm not sure if ill see a reduction when TIM breaks in some more.

So I've settled on 4.8 @ 1.385v idle-31 load-56 for now anyway ;)

Looking our your signature I have exactly the same as you bar 2133MHz teamgroup and a 7970 instead.

How are your temps?
 
You've got the extra two cores to power though :) (jealous of 3930k :D) swap? ;)

Now I'm thinking in my head I've say another .1 v I could put in it but my temps seem to be holding me back. Now I've got 840mm of rad so surely I should have lower temps? Bad seating?
 
I have near twice the rad and the same chip running higher voltages, your temps look about right. I usually hit low 60's under synthetic stress at 4.85ghz 1.48v
 
Mynight said:
I seem to have got lucky with chips again :D

5.1ghz at 1.4v these straps bring a whole new level to overclocking from my old 955.

41 x 125. Temps are not so great but the ambient in my area today is horrible so it may improve. (Idle-42 load-77) and I'm not sure if ill see a reduction when TIM breaks in some more.

So I've settled on 4.8 @ 1.385v idle-31 load-56 for now anyway ;)

Looking our your signature I have exactly the same as you bar 2133MHz teamgroup and a 7970 instead.

How are your temps?
Click to expand...


I have LLC set to medium, and need 1.42v in bios for 125x39 4.875ghz. With LLc at medium vcore goes down to about 1.4-1.408 under load.

Temps are 33idle, 80 underload (ibt/prime) Normally 5c differential between the cores.

What is your LLC set to? 1.4 is fantastic for 5.1. Is that the vcore in the bios? Or the value LLC corrects it to?

I run mine now at 125x38 with 1.38v with llc at medium, nice and cool on my antec 920
 
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Llc is set to medium and 1.4v is the Vcore its been set to in bios.

I should probably refrain from pushing it any further :(

Thanks everyone :)
 
Pfft you have loooooads of volts left to play with under water!! You could probably bench 1.5v easily. Give it a push, my 3820 craps out above 5.1ghz, you may manage nearer 5.5ghz!!
 
I'm tempted to buy the intel oc warrenty :D then just go for it :)

Ill give it a shot and see what my max is :) should probably wait for a lower ambient temp first.
 
Mynight said:
I'm tempted to buy the intel oc warrenty :D then just go for it :)

Ill give it a shot and see what my max is :) should probably wait for a lower ambient temp first.
Click to expand...

This is the best OC ive heard of for the 3820. A real gem.

Amazing volts. 5.2-5.3 should be 24x7.


WHat stress testing you doing? At least 20 mins of prime95 and 30 runs of ibt for it to be classed stable imo.
 
Ive run 50 passes of ibt and an hour of prime without failure.

Ive tried pushing the voltage up but at every point above 1.4v it fails no matter the clock.

everything powers up but I dont even get to post and then it reboots.

Is that normal?
 
I'm not sure I understand.

If give more than 1.4v it simply fails to post? That is defo strange.

Can you list your bios settings? You might want to avoid auto settings for vssca, imc and pll..
 
5.2-5.3Ghz should be attainable, would love to know what kind of clock you can get from just pure bench runs though. My bench runs consist of 1.55v, with temps in mid 40s :D
That gives me 5.2Ghz and "meh" 2400Mhz memory.

Updated my bios and lost all my lovely settings, too lazy to fiddle getting them right again, so that's me out the bench game till i get some kind of kick up my backside. You don't have to use IBT or anything like that to test for stability, just use your PC normally, if it crashes go back up to Vcore etc, nothing is going to stress it more than IBT so it seems illogical making it work that hard.
 
Bench run? Is that just pushing for the highest clock without worrying too much about stability? (sorry bit of a noob with terminology).

Vcore reported in cpuz at full load is slightly higher at 1.42v.

Ill post up all relative bios settings soon. Away for a few days so I don't have access to it :( (if anyone still cares that is haha)
 
Ok. Looks good. Seems your llc @ medium still bumps the vcore up during vdroop compensation.
On my R4F medium still gives vdroop.

Still. Awesome chip.

Post your bios settigs and some screeners of your benches! I'm jealous...well as much as you can be for an extra 100ish MHz lol!
 
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