i7 2700k @ 4.5ghz - 70c with water??

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supa-ted

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Hi,

I'd like a little bit of input with my set up regarding cpu heat. I have what I would call a custom water loop with to 120mm rads one at the front of my case with a push pull set up on the fans and the same at the back of my case. I have two exhaust fans at the top and two at the side sucking air in meaning ventilation should be good regarding ambient temp. Or at least I think it is!!??

I have been running the same overclock for a little time now and temps seem ok but will hit 70c whilst playing some games for instance tonight I was playing Black Ops 2 and I got a max of 71c. I'm not worried by any means because I am aware of the safety margins for my set up. However I have seen posts from others with water set ups where they claim never breaking 50c.

I suppose I'd like input from other users that actually run watercooled set ups so I can guage whether or not my temps are ok compared to other similar set ups.

My OC is 4.5ghz @ 1.3v, little more info not that it matters but I am using a KFA2 680OC, 16gb Corsair Ram 1600 @ 1.5v if I have missed anything that is useful please let me know.

Final thing that I must add and who ever reads this might get to this point and say... you bloody idiot!! Or similar....... There was method in my madness with this part.....

I needed some new thermal paste and came across a seller selling big tubes of the stuff so I am well aware that it is not quality stuff but thought I'd give it a go my temps do not seem any worse off than before I bought this paste.

I suppose I should add that idle temps are like 33c

Am I being completely stupid here or could the paste make that much of a difference 20c or so?

Cheers for any help in advance

George
 
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You are certainly warmer than I would expect with a custom water loop. My 2600K is at 1.32v and 4.5Ghz and hits the upper 60s C when stressed with Prime 95. I have a Scythe Mugen 2 Rev. B. It's an upper mid range air cooler so you should be lower than me for sure especially with less voltage.

I'm no water cooling expert but are you sure you are getting enough water circulation and enough air flow across the rads? Good thermal paste can help by a few degrees as well.
 
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supa-ted

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Hi Mate,

Ventilation shouldn't be a problem but I will probably take the thing apart in a couple of weeks after I move to clean and double check everything. I'm not sure about circulation, I think I have a good pump but it has been going 3 years or so. I'm happy to email pics to you if your able to give me your email addy or can I add pics here?

Cheers

George

 
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You can add pictures using an image hosting site like imageshack or somewhere similar. Pics will not do me much good because like I said I'm not a water cooling expert but we have a few around so it sure will not hurt. What I am wondering is if your pump and tubes are moving fluid fast enough. Your temps are not bad at all but they should be better. Let me PM another mod who is a watercooler and get him to chime in here. He can probably help you more than me.
 
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clonazepam

clonazepam

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Picturing in my head, you have a 120mm radiator at the rear, a 120mm radiator in the front, the cpu block, a pump, and a resevoir... I would have to expect lower temps as well. The first suspect is probably air in the line somewhere, like in the radiators.

Can you hear the water churning about while its running? I ran mine for awhile w/o any power to the computer components and just let the pumps run for a good long time. During that period, I would move the case around at different angles, tilting it gently forward, or back, side to side, to help get all the air bubbles out.

I'd start there and you could very easily drop the temps another 15-20c, I'm guessing. You'll know you are getting somewhere if the water level in the reservoir starts to drop as that water begins to fill in for the air pockets. =)
 
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supa-ted

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Hi Thanks for your replies. I do not know the exact models of the kit I have as it was that long ago that I ordered the stuff and wcuk don't seem to keep records that far back.

I have a XSPC pump, a bay res, an EK copper plexi block. The rads are both XSPC, one full size and one slim. There are no kinks in the loop, I am quite particular about things like that :)

When I set it up I let it pump the air round until it had settled, I left the fill cap off of the res and had to move the tower around in order to get it to fill properly so I can't say for sure but reckon it's air free.

Maybe I have a bit of a hectic loop? I kind of had to in order to fit the stuff in the case. Maybe the pump is working too hard?

I will post pics just as soon as I figure it out :)
 
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supa-ted

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Hey, I can't see any build up so to speak although there is a small black smuge on the inside of the plexi. Other than that looks like it may have to be a complete strip down, new fluid and get some A grade paste?

 
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Hard Line

Hard Line

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I would do a complete teardown wash everything in water/vinegar mix ( hot ) then rinse several times with hot distilled water a good 3 times or so. wash the blocks with hot distilled water and a toothbrush... if there is gunk on the block, you can use vinegar or ketchup and let it soak then use the toothbrush and scrub.. remember to rinse with hot distilled water..what are you using for coolant? are you using an anti microbial? I use distilled water and silver kill coil and nothing else. I am going on 4 years without a teardown
 
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supa-ted

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Hi Hard Line,

Thanks for all that info, I will do everything you have suggested> I just bought 2xsilver kill coils and will get the distilled water nearer the time.

I only stuck with the fluid as it had non conductive tendencies, just have to make sure I leak test properly ;) ' Lack of patience '

Hopefully this will help shift some heat.

Another thing if you don't mind is should I keep both rads? Am I right in thinking that more rads should mean less heat? I am more than happy to lose the one at the front if it would help, just need to be sure I'd be doing it for the right reasons.

Cheers

G
 
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4Ryan6

4Ryan6

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No offense OK, you're getting typical temperatures of a bad layout situation, and dust buildup on the rads and fans will make it even worse, this is the typical trap most fall into when they try to cram an inadequate cooling solution inside a case for convenience.

I see you have fans on your side cover and a lot of exposed tubing, which is actually working against the cooling of your rads.

Plus you're running miss matched thickness 120 rads and they're obviously not playing well together, you'd have been better off with a dual flow 240 than 2 mismatched 120s.

I seriously suggest thinking outside the box, ditch the 2 120 rads, and get a good radiator to cool your overclocked 2700K, and either top mount or side mount at least a 360 just to cool the overclocked 2700K at 4.5ghz.

http://www.performance-pcs.com/cata...ct_info&cPath=59_457_667_200&products_id=3123

Then you would see a serious temperature drop.

 
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supa-ted

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Hi Ryan,

Thanks for that and no offence taken. I must point out thought that the temps haven't changed since I built my most current loop meaning dust isn't a problem or I'm sure the temps would be higher. There is next to no dust :)

Ok so from what you've said I need to re-think the rad situation, that's fine and I can look into that.

Problem is I'm now stuck with a few opinions and I'm not sure which way to go.

I came on here for help which I have but could you help me understand how having two different rads is a miss match?

I don't mean to sound ungrateful in the slightest, I just want to be sure before I start swapping stuff out.

Also, I've just had a look and I really can't see how I'm going to get a 360 rad in my case unless I strap it to the back which I'd rather not do. A 240 will work

Cheers
 
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Hard Line

Hard Line

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I do agree with ryan that dust buildup and the mismatch can increase temps. ( i didn't notice that ) and I agree with his suggestion as well as standing behind mine. I believe this is a combination of worst case scenario.
 
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supa-ted

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Ok guys :) Thanks for your input, I'll swap out the two rads for a single dual rad as I really can't see me getting a 360 in there. I'll also clean all my existing equipment out as you have suggested and also re do the paste with some better stuff. Thanks a million for your help and expertise. I'll post back once its all done to update temps :)
 
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