Hi, the stock HSF on my AMD Phenom II x 4 955 was very loud, so i decided to replace it with the ARCTIC COOLING Freezer 64 after reading many favorable reviews for it. After i installed it, i definitely noticed a reduction in fan noise, but the problem was that it ran at a much higher temperature while doing the prime95 stress test.
Under the stress test, the temperature for the stock HSF was 52 while the temp for the new Arctic Cooling freezer was 65, which also goes above the recommended max of 62 for the Phenom II 955. I reinstalled the HSF 3 times to make sure that i didn't mess something up. I made sure the right amount of Arctic Silver 5 was used (the grain of rice spot method). I made sure the HSF was seated properly and doesn't wiggle. Every time i reran the Prime95 test, i get the same resulting temp of 65. During normal load, it runs at around 42 whereas the stock HSF ran at around 40. So the new Arctic Cooling Freezer fan isn't cooling nearly as well as the stock fan.
However another factor may be involved. At the same time i replaced the HSF, I also made another hardware change that could affect the cooling system... I installed a Corsair 650W PSU. The exhaust fan points downward into the case as opposed to blowing out the rear like my previous PSU. Could the exhaust fan, which is blowing in the direction of the CPU cause the rise in CPU temperature? I'd like to think that i installed the Arctic Cooling Freezer correctly, so i'm trying to isolate what is causing the higher temp.
I ordered a new HSF and that should help me figure out where the problem is. I'll also try reinstalling the stock HSF to see what the temperature is with the new PSU.
I'm wondering if anyone here has had a problem with higher temperatures after correctly installing a HSF or if a downward blowing PSU could cause higher temps. I heard that Corsair makes great PSUs, but it doesn't seem like a smart design to have the hot exhaust air blowing into the case rather than out.
Thank you very much for any feedback.
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AMD Phenom II X4 955 Black Edition Deneb 3.2GHz Socket AM3 125W
ASUS M4A785TD-V EVO AM3 AMD 785G
G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) F3-10600CL8D-4GBHK
Western Digital Caviar Blue WD5000AAKS 500GB 7200 RPM SATA
XFX PVT98GYDLU GeForce 9800 GT 512MB 256-bit GDDR3 PCI Express 2.0 x16
CORSAIR CMPSU-650TX 650W
Microsoft Windows 7 Home Premium 64-bit
Under the stress test, the temperature for the stock HSF was 52 while the temp for the new Arctic Cooling freezer was 65, which also goes above the recommended max of 62 for the Phenom II 955. I reinstalled the HSF 3 times to make sure that i didn't mess something up. I made sure the right amount of Arctic Silver 5 was used (the grain of rice spot method). I made sure the HSF was seated properly and doesn't wiggle. Every time i reran the Prime95 test, i get the same resulting temp of 65. During normal load, it runs at around 42 whereas the stock HSF ran at around 40. So the new Arctic Cooling Freezer fan isn't cooling nearly as well as the stock fan.
However another factor may be involved. At the same time i replaced the HSF, I also made another hardware change that could affect the cooling system... I installed a Corsair 650W PSU. The exhaust fan points downward into the case as opposed to blowing out the rear like my previous PSU. Could the exhaust fan, which is blowing in the direction of the CPU cause the rise in CPU temperature? I'd like to think that i installed the Arctic Cooling Freezer correctly, so i'm trying to isolate what is causing the higher temp.
I ordered a new HSF and that should help me figure out where the problem is. I'll also try reinstalling the stock HSF to see what the temperature is with the new PSU.
I'm wondering if anyone here has had a problem with higher temperatures after correctly installing a HSF or if a downward blowing PSU could cause higher temps. I heard that Corsair makes great PSUs, but it doesn't seem like a smart design to have the hot exhaust air blowing into the case rather than out.
Thank you very much for any feedback.
--------------------------------------
AMD Phenom II X4 955 Black Edition Deneb 3.2GHz Socket AM3 125W
ASUS M4A785TD-V EVO AM3 AMD 785G
G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) F3-10600CL8D-4GBHK
Western Digital Caviar Blue WD5000AAKS 500GB 7200 RPM SATA
XFX PVT98GYDLU GeForce 9800 GT 512MB 256-bit GDDR3 PCI Express 2.0 x16
CORSAIR CMPSU-650TX 650W
Microsoft Windows 7 Home Premium 64-bit