cpu tray

I restarted Mac Pro 2009 as usual and after the startup sound, it stayed on black screen for a long time. At the end of the day, there is no startup sound. I pursued the cause and found that it was a problem with CPU-B in the CPU tray. It seems that the Mac cannot boot if the CPU is installed in...

Good afternoon friends, I need some advice from the hive mind. I have a 4.1 dual tray with a sensor problem. The tray passes the hardware test and the cMP chimes and starts as normal. However the intake, exhaust, BoostA and BoostB fans blow at full speed. It's definitely a 4,1 tray and not a...

Primary Question: What can I use as a replacement for a missing plastic tab on the 4,1 dual CPU tray's small heat-sink? (The one that is normally held down by a circular black plastic tab with a metal spring under it. See details & pics below.) Thanks. Background Details: Been having...

Dear People, I've upgraded my single CPU tray 4,1 MacPro to an 2009 4,1 Dual CPU tray. I installed it, everything works, but fans are blowing at 100% all the time. Ive reseted PRAM and SMC chip. What can I do more? Please help! specs 2009 4,1 MAC PRO 2009 4,1 dual CPU tray (one CPU...

Last week, and then again last night, I restarted after applying a software update to my cMP (last night it was a LittleSnitch updater that requires a restart) and it was very sluggish to get to the startup chime. Last night on a second restart there was simply no startup chime at all. Primary...

Hi there, Starting my own thread since I figured out I would have lots of questions and it would be easier to post them in my own topic instead of bumping up everybody's old threads. I've been wanting to buy a Mac Pro for a very long time, my wish was a 2012 2x6 3.43ghz, but I didn't have the...