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Heatsink mounting question

QueBert

QueBert

Lifer
Have a Xigmatek Dark Knight, picked up a new MB, DFI LP DK P45-T2RS PLUS. The northbridge heatsink is too tall to mount my heatsink with the fan facing forward, so I have it facing down. Speedfan apparently doesn't like this MB as it's telling me my CPU's running at 12c lol.

My question is, is there any nagative to having the heatsink pointing downwards?
 
What case, CPU, overclock ? There is technically no difference on the CPU from a vertical or horizontal mount, but you might be choking the fan if it's really close to the roof of your case, and it doesn't have an exhaust/intake. That shouldn't matter too much as heatsinks can cool passively, depending on your CPU speeds. If the fan is blowing downwards, and you have a rear exhaust, then that should be fine.
 
My case is a CM Scout, has a fan on top and the fan on the heatsink is mounted downwards. there's also a 120mm fan on the rear of the case. C2D e6550 CPU, not OC'ed, yet any ways. It sucks Speedfan isn't giving me an accurate temp reading. Perhaps on the DFI forums people can point me to a proggy that works with my MB.
 
If the fan on top is an intake, make sure the fan on the heatsink is flowing downwards, and vice versa for exhaust. But since there's some sort of airflow going through the roof of your case, you'll be fine. Just make sure there's not a conflict of interest. It's probably better to have your fan push air through the heatsink and have the top fan as an exhaust, but the other way is fine too. I've seen plenty of HSF mounted vertically with identical temps. Best of luck to your OC 🙂.
 
1. fan on top of case should exhaust
2. heatsink fan should blow air through heatsink toward top exhaust fan
3. speedfan should be considered "awesome if it works" instead of "omg I can't believe it doesn't work."

No temp reading can be close to accurate without knowing your chip's TJ max. Find that, and everything will fall into place. Look into monitoring programs like RealTemp and CoreTemp, and google for your chip's TJmax.
 
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