4ghz i7, under water, what're your load temperatures please?

JonJ678

JonJ678

JonJ678

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The numbers would be useful, as I will (when stock finally arrives) be running a 920 under an ek supreme, but in a somewhat non-standard loop so any numbers to compare with would be brilliant.

Cheers

(many blocks, probably two pumps, lots of small rather than one big radiator... it's fun to be different)
 
I have an EK supreme LT on my i7 with a 120.2 rad:

Stock: IBT ~50°C
3.4Ghz IBT ~55°C
4.0ghz IBT ~70°C
4.3Ghz IBT ~78°C

They seem a bit high but I guess that due to IBT and the fact I use the core with the highest temp which is 3-5°C hotter than the rest. Prime95 temps are 5°C less and I haven't tweaked voltages yet as I've only had this rig for a few days :)
 
4.4Ghz @ 1.31v
Load @ 62'C max [used linX, Prime, OCCT - none go above 62]

EKsupreme [lapped]
18w modded ddc pump
thermochill triple rad + Yate 38mm wide [high cfm] fans
 
Thanks everyone who's posted so far. At rjkoneill, that's very interesting. By modded ddc, do you mean from 10W to 18W or something else?

It's the lapped ek supreme that's really got my attention though, as I've been considering doing this to mine for a while. How did you lap a bowed waterblock? I have a milling machine in mind. Is the processor also lapped, and what was the change in temperatures before and after?

Cheers
 
also intrested in the lapping of the block..as i get 7C range of temps across core, if i could get it down to the lowest all throught the CPU i would have sub 60C IBT temps :(
 
Hopefully rjkoneill will remember this thread. I've emailed Eddy to ask what he thinks of the idea, I suspect he's going to recommend lapping both or neither.

Lapping a bowed heatsink is likely to be very difficult Sayso, what method do you have in mind?
 
I've had about 70-75C on load with my 920 using an EK Supreme block. but the idea of lapping a CPU water block sounds tempting... :D
 
Im using a Koolance 350AC on a 920@4ghz, getting pretty poor temps at the mo, 43 idle and 70 under heavy prime 95 100% load. Think I need to redo the TIM application but cant be bothered as its all in now and I cool my VRM's around the CPU socket making removing the cpu a real pain
 
JonJ678 said:
Thanks everyone who's posted so far. At rjkoneill, that's very interesting. By modded ddc, do you mean from 10W to 18W or something else?

It's the lapped ek supreme that's really got my attention though, as I've been considering doing this to mine for a while. How did you lap a bowed waterblock? I have a milling machine in mind. Is the processor also lapped, and what was the change in temperatures before and after?

Cheers
Click to expand...

modded 18w from the 10w version
simple job

the block on the other hand...

we had a broken topped one in the scrap at work so i took the base plate off it to experiment with
i gave it to a family friend who is an engineer and he got it level by taking 1.5 mm off the contact plate

i am going to be honest, i dont know what tools or method he used - sorry :eek:

this in turn left me with a rough [ish] finish
i used a lapping kit to get it shiny [well, buffed :D]
and then mounted it using a special bracket i made myself combining backplates and other tat from other waterblocks

it knocked a good 5-8'C off my temps

[i also removed the impingement plate out of the block which seemed to help dramatically too]

just a case of experimenting lots tbh

i never lap chips
 
Ahh mate that has made my day. Absolutely made my day.

I'm quite confident in saying he clamped it onto a milling table and ran a bit back and forth until it looked good. How confident are you in the 1.5mm reading? I'll track down a set of calipers before I do anything drastic, I just wasn't expecting anything like that much leeway.

I'm probably losing the impingement plate as well, part of running it in series with other blocks. Dont suppose you know how much can be attributed to lapping and how much to taking the plate out?

I've seen it suggested to modify the impingement plate instead of removing it, which makes a lot of sense to me

I see fun times ahead :D
 
JonJ678 said:
How confident are you in the 1.5mm reading? I'll track down a set of calipers before I do anything drastic, I just wasn't expecting anything like that much leeway.

I'm probably losing the impingement plate as well, part of running it in series with other blocks. Dont suppose you know how much can be attributed to lapping and how much to taking the plate out?

I've seen it suggested to modify the impingement plate instead of removing it, which makes a lot of sense to me
Click to expand...

the 1.5mm reading is compared to my stock plate from my block - the one i had worked on was a spare

it was measured with a digital caliper thing [not sure of its name]

the impingement plate was taken out and it dropped temps by around 2'c [margin of error territory tbh] however - running lots of blocks - it needed to be done to help flow

i have a replacement plate i got from EK that allows for a little more flow but have achieved best results by not using it
 
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