Well I've scratched my head long enough with this one so I thought I would pick others brains. I recently decided to upgrade my thermal paste to Artic Silver 5 as it has been approx. 5 years since the chip was mounted and I was seeing what I push my OC to. Ever since I reinstalled the cooler I have noticed in HWMonitor that my CPU fan no longer ramps from 2500 RPM's to 3500 RPM's as it used to as the temps rise. So instead of sitting at 60 - 65 degrees under load it runs right through 70 to 75 degrees. I have reapplied my thermal paste several times (likely for no good reason) as I know we all mess it up on occasion, and it has zero effect on the fans performance. I am aware that its a golden oldie chip, board etc. but it was working right up until I decided to tinker cause a replacement is on the way in a few weeks. I would rather not melt it before than, plus after 2 days of banging my head on my case I just want to know why.
Rig is:
Pentium D930 3.0ghz (OC at 3.9 @ 1.400V) stock cooler
Asus P5WD2-E Mobo
Thermaltake 700 watt PSU (new)
2x Powercolor HD 7770's in crossfire
Rear 120 mm exhaust fan + 2 80 mm intakes on front and bottom
MB temps are ok and GPU's never break 60 degrees at a OC of 1150 core and 1400 memory.
Any ideas of what could suddenly be stopping my CPU fan from increasing RMP's from 2500 to 3500 like before with CPU temps would be greatly appreciated. I have tried moving the plug to the PWR and Chassis and it just sits at 2500 regardless.
Thanks in advance.
Rig is:
Pentium D930 3.0ghz (OC at 3.9 @ 1.400V) stock cooler
Asus P5WD2-E Mobo
Thermaltake 700 watt PSU (new)
2x Powercolor HD 7770's in crossfire
Rear 120 mm exhaust fan + 2 80 mm intakes on front and bottom
MB temps are ok and GPU's never break 60 degrees at a OC of 1150 core and 1400 memory.
Any ideas of what could suddenly be stopping my CPU fan from increasing RMP's from 2500 to 3500 like before with CPU temps would be greatly appreciated. I have tried moving the plug to the PWR and Chassis and it just sits at 2500 regardless.
Thanks in advance.