3930K W/W Poor Temps?

somewhatdamaged · 10 Feb 2013 at 21:25

Hi 8Pack

My watercooled 3930K seems to require 1.35v to maintain 4.5Ghz which seems rather poor. I have set LLC to high, voltage to 1.35 and can pass IBT / Prime etc with temps hitting high 60s

it seems like a high temp given what i would consider a very good watercooling setup, and my CPU seems to require quite a lot of volts for what is surely only a "good" overclock

If you can give me any pointers it would be MUCH appreciated

System specs below

Asus Rampage Extreme IV
3930K CPU
360mm Alphacool Monsta radiator
240mm EK radiator
Switch 810 loaded with Ap-15 Gentle Typhoons (fans on top of rads pulling)

pgi947 · 10 Feb 2013 at 21:31

What pump & CPU block are you using?

somewhatdamaged · 10 Feb 2013 at 21:39

EK Supreme HF block, Ek DCP 4.0 Pump

Should have mentioned that before sorry

Nickolp1974 · 10 Feb 2013 at 21:54

I'm hitting about 62c priming with 1.44v, but you do have 2 more cores, i would say @1.35v i'd hit about 56c after an hour at full load.

8 Pack · 10 Feb 2013 at 22:32

Each chip not only requires different voltages to reach a certain frequency they also all have different thermals.

I would try reseating the block first to check how the contact is. Do this using a good quality TIM.

I would also loose all that LLC go to medium. See how you go with this first.

somewhatdamaged · 10 Feb 2013 at 22:34

Using a pea sized blob of IC Diamond (checked size against a real pea too!)

Contact should be spot on, but ill check if you think its worth it

8 Pack · 10 Feb 2013 at 22:41

It is worth it yeah. I am not keen on that TIM it scratches the IHS. The problem here is more than likely that you are using 8 dimms. This means more heat from IMC.

Try it just as an experiment remove six dimms so your just dual channel. Note your temps!!!

somewhatdamaged · 10 Feb 2013 at 22:44

Ah forgot to say, currently just using 4 x 4GB dimms as ram in my server packed up so loaned some to it!

8 Pack · 10 Feb 2013 at 22:59

Oh ok!!! Well its not that then. What VCCSA , VTT???

somewhatdamaged · 11 Feb 2013 at 18:26

OK i have it stable at 4.5Ghz which isnt wonderful (before i try reseating TIM)

125x36
VTT is 1.150
VCore 1.35 in BIOS (1.32 in windows with medium LLC)
CPU PLL 1.881
CPU VCCSA 1.159

Temps hitting 70 degrees using IBT
My cooling setup should surely be better?

8 Pack · 11 Feb 2013 at 22:14

What speed is the RAM running at in your 4.5 stable????

This can effect overall CPU speed but help with efficiency of a certain clock.

somewhatdamaged · 12 Feb 2013 at 08:22

I've kept the RAM running at stock 1600mhz as i thought that getting the CPU stable before the RAM would be wise

I'm going to reseat the block tonight as i really think that the watercooling setup i have should be doing a much better job

8 Pack · 12 Feb 2013 at 09:35

Yeah I would look at this first.

somewhatdamaged · 13 Feb 2013 at 08:29

OK, i've reseated my heatsink with MX-3 and temps are much the same

got a 101 BSOD this morning at 1.32v 125x36, same voltages as mentioned above

8 Pack · 13 Feb 2013 at 11:37

101 means you need to add Vcore.

somewhatdamaged · 13 Feb 2013 at 11:47

Does it seem like i'm needing a rather excessive amount of Vcore for an average overclock?

8 Pack · 13 Feb 2013 at 12:37

Nope!! Current 3930K need more Vcore in my experience!!! and I have a lot of experience!!!!!!!!

somewhatdamaged · 13 Feb 2013 at 20:38

Hi,

Update for you

I have done 10 runs of IBT on maximum and it passed @ 4.749ghz (125*38)
Vcore is 1.424 and realtemp shows highest core at 74 degrees

Is this a decent overclock?

8 Pack · 13 Feb 2013 at 22:14

Yes that is a decent overclock although all things are relative.

What RAM speed you doing for this clock?? 2333mhz, 2000mhz??? Your clock may be more efficient losing 1 multi and running less Vcore with highly tuned RAM.

Also IBT proves nothing only you can run IBT, use your system to check its true stability.

Finally Intel recommends 1.4v as the top voltage for 24/7 use. I think I should point this out just so you know where your at with it. I am telling you to lower the voltage no!!! thats your call .

somewhatdamaged · 14 Feb 2013 at 14:10

RAM speed is still quite low but looking at starting overclocking tonight

Any tips on what i should try out for? Would be nice to get around 2400mhz but i know now all RAM will reach those speeds. Or is a slower speed with tighter timings better?