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Category: Support
Forum: BOINC Agent Support
Thread: CPU cooling suggestions |
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Thread Status: Active Total posts in this thread: 68
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Hardnews
Senior Cruncher England Joined: Oct 11, 2008 Post Count: 151 Status: Offline Project Badges: 
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Interesting thread, I built an i7-2600K box at Christmas for crunching, could only run it at 80 per cent due to heat, noise, and cheapskate case.
----------------------------------------I've just shoved the lot in a 'small' Fractal Designs Define mATX case to good effect, changed the PSU for a dual-fan over-rated 750 watt unit on the floor of the case, and put in four 120mm fans on a speed controller. (The push fans are slightly faster than the 'pull' fans again.) Speed controller keeps the noise right down, 4 x 120mm fans keeps the air-flow up. The FD case has fan filters, an 'anti-noise' front-fan intake set-up, and bitumen noise insulation, a big plus on high-airflow cases, I think. It's a big improvement. It was prompted by suddenly noticing the memory DIMMS in the old case were at 130C . Sheesh. [Edit 1 times, last edit by Hardnews at Apr 24, 2012 6:12:23 AM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
CPU cooling suggestion: Depending on having additional case fans in addition to the "on CPU" cooling block fan, construct an airduct from outside the computer case directly onto the CPU block. This ensures that non-prewarmed air flows over the CPU or through the cooling block. My old SFF P4 had one fitted [actually 2, leading to and from the CPU with pull and push fans on the outside of the case (due space constraints) and my Q6600 has one. Runs 52C at full tilt, on air, and it's getting summerish already.
And if fitted proper, thermal paste properly applied and all... visit the dustbunnies thread in the Chat Room. --//-- P.S. Those memory fans are the first I've ever seen [surely an OCer's xxx dream solution]. Had memory in the SFF that was fitted with thick copper slide-ons that helped them staying cool. But fans were howling all the time, so at 200 watts for 1 core, against now 8 in the Octo/HT at 42 watts TDP, it was screaming for retirement. It was soon after the Q6600 was procured (which still does 170 watts at socket, display off). |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
my new i5 2500 home built desktop running at 100% toping out at 53c and it is oc to 3.9. I put the system board into a 79.00 cooler master case which has 3 large fans. my laptop from asus ruinning i7 at 100% stays arround 62c
----------------------------------------[Edit 1 times, last edit by Former Member at Apr 24, 2012 10:34:33 AM] |
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Hardnews
Senior Cruncher England Joined: Oct 11, 2008 Post Count: 151 Status: Offline Project Badges:
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"an airduct from outside the computer case directly onto the CPU block."
Someone at Fractal Designs heard you. The internal drive frame behind the front panel fan can be rotated internally through 90 degrees to act as a fan duct. 'Cold' front panel air is then ducted directly onto the CPU cooler. This does limit you to having only four hard drives in the case though. (There may be other brands of PC case equally suitable). :-) |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Like this, demonstration: http://www.newegg.com/Product/Product.aspx?Item=N82E16811352008 but missing to see the actual duct
The bottom dust filter, easily pulled for cleaning is impressive. --//-- |
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sk..
Master Cruncher http://s17.rimg.info/ccb5d62bd3e856cc0d1df9b0ee2f7f6a.gif Joined: Mar 22, 2007 Post Count: 2324 Status: Offline Project Badges: 
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!
----------------------------------------[Edit 1 times, last edit by skgiven at Jul 18, 2012 9:11:36 PM] |
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ryan222h
Senior Cruncher Joined: Sep 4, 2006 Post Count: 425 Status: Offline |
ryan222h, check that your heatsink is attached to the motherboard correctly. If it was at 60degC and is now at 90degC there is a chance one of the heatsink feet/pins/clips came loose. Dust buildup is another possibility. While 90degC might be tolerated by the CPU, it's not good for the other components, and will increase the likelihood of other components failing (especially motherboard). You might also find that the CPU downclocks to protect itself. Thanks for the info...I checked pretty extensively on the heatsink and am almost certain its a sensor issue. CPUz reports 4500 mhz firm with no downclocking, cpu voltage is firm at 1.32 volts, and HWmonitor reports a power of 98 watts at the cpu, certainly within limits. I will again detach and reattach the heatsink just to make sure its not improperly seated. BTW I'm using Coolermaster Gemini aftermarket cooling, and my other computer that also has one runs about 60. One thing I forgot to mention before is that this computer was once water cooled, and it had a BAD day involving green fluid all over the motherboard. I'm surprised it works at all!  [Edit 1 times, last edit by ryan222h at Apr 24, 2012 5:12:31 PM] |
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Hardnews
Senior Cruncher England Joined: Oct 11, 2008 Post Count: 151 Status: Offline Project Badges:
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Like this, demonstration: http://www.newegg.com/Product/Product.aspx?Item=N82E16811352008 but missing to see the actual duct The bottom dust filter, easily pulled for cleaning is impressive. --//-- Ah, It's actually this one which also has the removable bottom filter, the drive cage/fan duct and twin front filtered fans. |
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oliverstirling
Advanced Cruncher United Kingdom Joined: May 7, 2007 Post Count: 107 Status: Offline Project Badges: 
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Personally I've found that water cooling provides far more superior cooling (generally) than air. I've had good experiences with Zalman's Reserator 1 which was very easy to assemble and fill due to its standalone radiator tower with quick release couplings which also made the yearly water change a doddle. It had the added bonus of no fan noise due to it's passive cooling design and it still managed to keep my Phenom X4 9550 (quite an inefficient CPU with a 125W TDP) around 30-40Celsius under full load.
this computer was once water cooled, and it had a BAD day involving green fluid all over the motherboard. I'm surprised it works at all! However, those wishing to avoid the problem above there are a number of aftermarket sealed closed loop systems available (such as the Antec Kühler, Corsair Hydro, Corsair H50 or CoolIT Domino ALC to name a few) which perform quite well and require no maintenance (other than occasionally clearing dust from the rad) or plumbing know how. |
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ryan222h
Senior Cruncher Joined: Sep 4, 2006 Post Count: 425 Status: Offline |
In fact this was a "closed-loop" liquid cooling system, the CoolIt ECO A.L.C that failed on me and leaked all over my system. Closed loop systems are not immune from failure.
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