Got my system build done and stable running at default speeds for now, and testing some cooling issues with airflow in the P180b. With system at idle, monitoring P5WDH MoBo temp (sensor near the Southbridge) and it remains stable at 43C in any of the following scenarios. However the CPU core temp shown in CoreTemp Beta 0.9.0.91, and Everest Ultimate/ Sensor Temps, drops significanly in the following scenarios:
Beginning with the case closed, both side panels on:
When I remove the RIGHT-SIDE case panel (behind the MB), core temp drops 2C - 3C. Then taking off the left side case panel temps drop additional 3C- 4C. With a closed case (both side-panels on) when I remove ONLY the LEFT side-panel, core temp drops 5C - 6C, as fresh air is available directly to the CPU ThermalTake Big Typhoon fan.
As shown in the picture, my P180b case has 4 Enermax Marathon (Enlobal Bearing) 120mm fans running at about 900rpm - 1000rpm which are quiet as was my goal. The 2 upper case fans (back and top) are exhausting air, one in front of the upper HDD tray is blowing air into the case, across the empty HDD tray. And finally the lower compartment middle fan which is not an issue here because P180b has lower PSU HDD tray separated is sucking air in from the front, over the HDD tray and to the PSU, which has 120mm fan then blowing air out the back.
In testing scenarios, I've opened the front door and opened the 2 filter doors to lessen any posibble rstriction to airflow entering the case from the front, and temps remain about the same, possibly dropping 1C - 2C at most, so that's not making a difference.
1. as removing the left side case panel improves airflow into the TT Bg Typhoon, lowers core temp 6C, has anyone modded their P180b LEFT SIDE panel by cutting a hole directly over the CPU fan?
2. Has anyone reversed the exhaust fan at the back of P180b case to blow outside air onto the CPU heatsink and airflow of the CPU heatsink fan?
If I close-up the case the core temp are still well within safe operating range, I only noticed the temp drop as much as 6C and thought there might be something to improve interior-case airflow even further.
Any tips or suggestions?