Hi,
I have 2009 Nehalem Single CPU 4.1>5.1. Original owner. Been working fine for many years.
Upgraded CPU W3520 to X5690
Rarely boots normally. Most of the time, no boot chime.
Once it boots, everything works normally. No issues with temps or fans.
SMC reset is the only thing which improves chances of boot chime. But it only helps like 20% of the time. Have to hold power button down to shut down, then try again with random success rate.
Did PRAM resets many times.
Bought new X5690. No improvement.
Put old W3520 and boot is 100% normal.
I tried reseating CPU and tray multiple times.
Cleaned CPUs and reapplied pea size thermal paste multiple times.
I tried different tightenings of heatsink, since the X5690 is slightly thicker than the W3520.
Can my Mac Pro handle the X5690? Should I choose a different CPU? Both W3520 and X5690 are 130W. Not sure what the issue is. Any help greatly appreciated. If you need any other information, let me know.
Thanks!!!
Other system specs:
High Sierra
Nvidia GTX 1080, Radeon HD4870 when needed
24GB RAM triple channel
2 SSDs, 1 HDD
I have 2009 Nehalem Single CPU 4.1>5.1. Original owner. Been working fine for many years.
Upgraded CPU W3520 to X5690
Rarely boots normally. Most of the time, no boot chime.
Once it boots, everything works normally. No issues with temps or fans.
SMC reset is the only thing which improves chances of boot chime. But it only helps like 20% of the time. Have to hold power button down to shut down, then try again with random success rate.
Did PRAM resets many times.
Bought new X5690. No improvement.
Put old W3520 and boot is 100% normal.
I tried reseating CPU and tray multiple times.
Cleaned CPUs and reapplied pea size thermal paste multiple times.
I tried different tightenings of heatsink, since the X5690 is slightly thicker than the W3520.
Can my Mac Pro handle the X5690? Should I choose a different CPU? Both W3520 and X5690 are 130W. Not sure what the issue is. Any help greatly appreciated. If you need any other information, let me know.
Thanks!!!
Other system specs:
High Sierra
Nvidia GTX 1080, Radeon HD4870 when needed
24GB RAM triple channel
2 SSDs, 1 HDD