3570k temps with h100i

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Baygamer415

Baygamer415

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i just installed my h100i and i was curious if these were okay temps...running prime 95 for only10 mins or so.. i thought they are high, ive already reset my block 3 times and getting these temps.

core 0 49c 100%
core 1 54c 100%
core 2 55c 100%
core 3 52c 100%
..anyways, i find these to be very high for at stock 3.4ghz running prime 95 for 10 minutes! I have reset my block 3 times already and cant seem to find good temps. idle is about 28,25,32,31 stock 3.4 @ 1.080v

 
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MauveCloud

MauveCloud

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Sorry, I missed the detail that those were the temperatures at stock speed. Definitely something wrong there. Can you provide other details, like what case you're using, where the radiator is mounted in it, and whether the fans for it are acting as intake or exhaust?
 
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Baygamer415

Baygamer415

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case is bitfenix prodigy (despite of it being small, there has never been an issue of heat) I have it mounted on top with it pulling air out of case, with 200mm front intake and rear 120 intake as well( i tried rear exhaust and it was 2-3 degrees worse). I've re-mounted the block 3 times already..first time there was way too much pressur on one side, second time i thought my have been ok. Everybody who has put a h100i in a prodigy puts it on the top and best results is having it exhausting air out. I really think its how I have it mounted on the CPU. Any advise?
 
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MauveCloud

MauveCloud

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Airflow should be good then, and the temps don't seem quite high enough to suspect a DOA pump or fan. You did apply thermal grease, right? It might help if you take some photos that we can look at to see how well or poorly the cpu block is mounted (views in from the side might be more revealing that photos from above).
 
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Baygamer415

Baygamer415

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yeah I applied some noctua..in all honestly it looks super straight(but ill get some pictures up asap) .. also does the loops have to be on a downward angle at all times. Its not like it's point straight up or anything but it has the slightest upward angle if that makes sense.
 
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Buzz247

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First, what are your ambient temps? This can make a huge difference. Liquid cooling still uses air. Just gets the heat out of the case faster and quieter.

Second, slightly high, but relatively normal for a haswell OC on an h100. All in one kits will never perform like a custom loop. At best under perfect conditions, they perform as well, maybe slightly better than top end air coolers. Haswells do run a titch hotter than ivys, and h100 was originally designed given those specs
 
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Buzz247

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That was tested on an i5-2500k ivy @4.0Ghz - big difference. Not comparable or applicable in this situation
 
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Baygamer415

Baygamer415

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So i was doing research about using extra rubber washers on the back plate because my standoff wiggle around in the mobo. As well as the bkac plate doesn't fully stick into the mobo with out tightening the stand offs. this is a common problem i hear, but would you tihnk this is the case?
 
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MauveCloud

MauveCloud

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It would be easier to estimate whether rubber washers would help if you provide photos like I suggested. You haven't specified the brand and model of your motherboard, but it must be mini-itx to fit in a Bitfenix Prodigy, and if that board is thinner (fewer PCB layers) than a standard ATX motherboard that the H100i was probably designed for, that could lead to poor fit. You say the standoff wiggles - does it only wiggle parallel to the motherboard, or is there a little bit of motion perpendicular to the motherboard available even with the standoffs tightened?
 
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Baygamer415

Baygamer415

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I got asrock mITX board and it's forsure as thick as a regular mobo. As for my motherboard stand offs, they're are stable. Its the h100i stand offs wiggle. Watch these and this is my current issue.
http://www.youtube.com/watch?v=5JeFHtQQoCE
http://www.youtube.com/watch?v=UnWMlcB3nTg
So obviously, next step is to add some washers and I'll let you know how that goes. Thanks for the help by the way, much appreciated.
The temps in the first video are way higher then mine. On average i get 25-33C idle 3.4 and full load it's in the 50s, which isn't as bad as his, but I can get so much better.
 
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MauveCloud

MauveCloud

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I was talking about the h100i standoffs. If they can move perpendicular to the motherboard even when fully tightened (as shown in those videos), you won't get a proper fit. I'd say having the threaded holes stick through the motherboard (as opposed to keeping them behind the motherboard for the standoff screws to reach) is a serious design flaw in the h100i. If your motherboard is the same thickness as a regular one, that backplate must have been designed for an extra-thick motherboard.
 
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Baygamer415

Baygamer415

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hey mauve--
just added some rubber o rings and it definitely made the standoffs was more stable. turned on my computer and temps were a degree or two better. I think I can fit another O-ring underneath and it will make it firm, although they're much firmer now there is still minor wiggle.

If the standoffs is not the case, is there a possibility it's a hot chip? Also, what is the consequences of when my h100i block slides a tiny tiny bit when im mounting it?
 
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MauveCloud

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I think you'll want enough washers (and other padding) that with the cooler standoffs screwed into the backplate, there's no wiggle at all. The standoff screws provide the spacing to prevent damaging the cpu while mounting.

As far as the block sliding, as long as the sliding was parallel to the cpu/motherboard and didn't break the contact, that shouldn't cause any problems.

There is a possibility that the chip runs hotter than most other same-model chips, but I suggest also checking what your voltages are reading compared to ATX spec and how you set your cpu voltage in the BIOS. You haven't specified what psu you're using, so it would be a good idea to check that as well.
 
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Baygamer415

Baygamer415

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i have corsair cx600 psu... I've been testing today..my board's optimized OC settings at 4.2 has it at 1.24v..so far I've been backing down from that..now testing at 1.195v and not breaking 66c on prime 95.. so i'm def getting there, but i will add more washers just to make sure.
 
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GOM3RPLY3R

GOM3RPLY3R

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I know this is a few months old, but i felt this might be good as feedback.

I have a similar setup with a 3570k and a h100i. I set my ASUS Mobo's TPU switch on, so it is clocked to 4.2 Ghz. I Ran prime 95 for ~30 minutes, and the max total temp was 44ºC, and single core was core 2 @ 48ºC. My average idle is ~27ºC total, min per core: 23ºC, max per core: 32ºC.

Hope this gives you an idea! Also to note, my fans didn't fit in my case, so they are in a Pull config going from the inside-out on the default Corsair fan curve.
 
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