So, I wanted to move from a P45 to an X48 chipset. Got a new ASUS motherboard, but used all the same components - Memory, HDDs etc.
When I powered up, the system remained up only for less than a minute and then does a shutdown. The problem has remained after all the testing that I describe below.
I ruled out memory issues by switching between different brands/speed/slot placements etc. Memory gets verified correctly and is displayed as such.
I ruled out graphic card issues by switching between different PCI-E/PCI cards - all work.
LEDs on motherboard show all green for CPU, memory, SATA etc.
Where I should have looked first - of course - was the CPU temperature. If I can actually get into the BIOS fast enough, the readings show it spiking upto 87 C. NB, SB, motherboard temps stay in 27-33C range.
I'm using the same CPU (Q9550) from the previous motherboard.....I wanted to use a new Zalman fan, but the motherboard heatsinks surrounding the CPU wouldn't let it fit in. So I just cleaned up the CPU and stock Intel HSF and used the thermal compound that came with the Zalman fan. Obviously, I think its seated fine.......can't be sure though.
If I clear out the CMOS, sometimes the system can remain up for as long as 3-4 minutes and allow it to boot up - but most of the time as soon as I go into BIOS, it just shuts down before I can even monitor the temperature.
My question is - and I couldnt find the answer after googling - can a quad core go up to 87C in such a short time - literally less than 30 seconds....from a completely cold startup (yes, I waited a few hours to test) The CPU should be idling.....its barely into its BIOS settings at this point.
Should I even bother with other fans/thermal compounds - could it even be a HSF seating problem?
My setup is sitting on a cardboard right now - so there's no ambient temperature issues.
TIA
When I powered up, the system remained up only for less than a minute and then does a shutdown. The problem has remained after all the testing that I describe below.
I ruled out memory issues by switching between different brands/speed/slot placements etc. Memory gets verified correctly and is displayed as such.
I ruled out graphic card issues by switching between different PCI-E/PCI cards - all work.
LEDs on motherboard show all green for CPU, memory, SATA etc.
Where I should have looked first - of course - was the CPU temperature. If I can actually get into the BIOS fast enough, the readings show it spiking upto 87 C. NB, SB, motherboard temps stay in 27-33C range.
I'm using the same CPU (Q9550) from the previous motherboard.....I wanted to use a new Zalman fan, but the motherboard heatsinks surrounding the CPU wouldn't let it fit in. So I just cleaned up the CPU and stock Intel HSF and used the thermal compound that came with the Zalman fan. Obviously, I think its seated fine.......can't be sure though.
If I clear out the CMOS, sometimes the system can remain up for as long as 3-4 minutes and allow it to boot up - but most of the time as soon as I go into BIOS, it just shuts down before I can even monitor the temperature.
My question is - and I couldnt find the answer after googling - can a quad core go up to 87C in such a short time - literally less than 30 seconds....from a completely cold startup (yes, I waited a few hours to test) The CPU should be idling.....its barely into its BIOS settings at this point.
Should I even bother with other fans/thermal compounds - could it even be a HSF seating problem?
My setup is sitting on a cardboard right now - so there's no ambient temperature issues.
TIA