Single trays are much cheaper than the duals...I don't suppose someone has a spare 2009 CPU tray lying around do they?
https://www.ebay.com/sch/i.html?_fr...RC0.A0.H0.TRS5&_nkw=4,1+mac+pro+tray&_sacat=0
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MP 1,1-5,1 MP 4.1: No startup chime (complicated issue)
- Thread starter godzfire
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https://www.ebay.com/sch/i.html?_fr...RC0.A0.H0.TRS5&_nkw=4,1+mac+pro+tray&_sacat=0
I went back and did some more testing, and confirmed that both red processor board lights come on momentarily when powering on the machine (like they should do). I also tried removing both processors and heatsinks and turned it on with just 1 stick of RAM. No chime of course, but the board bad both lights stay on red, as it should when there are no CPUs connected.
So that almost makes it seem like the CPU board isn't bad and it's the motherboard right? It would also make sense why I was getting random GPU led flashing when the video card was in sometimes very moving it to another slot.
So that almost makes it seem like the CPU board isn't bad and it's the motherboard right? It would also make sense why I was getting random GPU led flashing when the video card was in sometimes very moving it to another slot.
The plot thickens with this. To see if it was a bad logic/motherboard, I bought one off eBay.
It has to be the CPU tray at this point. I don't know what else it could be, even though some of the error lights don't match up.
EDIT: Since this was previously flashed to 5.1, could that be causing anything? I am using stock processors @s.m.t. sent me.
- On boot the MP then got a continuous flashing white power button light, which is one thing I've never had happen before. No EFI/GPU LEDS. No red LEDS anywhere either though.
- Seeing as all the results when I searched for this was RAM related, tried swapping in all sorts of different ram sticks into different positions/combinations. Same results. Did SMC resets and same thing.
- Removed CPU B/heatsink, rebooted. Now steady white power light, but red LEDS on the CPU tray next to both processor locations.
- Swapped CPU A with CPU B, rebooted. Steady white power light, no red LEDS on tray, EFI OK green, but now GPU OK is flashing green, even though I don't have a video card in.
- Swapped with an ADDITIONAL spare CPU I had, and now the damn power light flashes white and then just turns off completely, with neither the EFI or GPU LEDS coming on.
It has to be the CPU tray at this point. I don't know what else it could be, even though some of the error lights don't match up.
EDIT: Since this was previously flashed to 5.1, could that be causing anything? I am using stock processors @s.m.t. sent me.
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A backplane with MP4,1 firmware won't work with X56xx Xeons, but will work with E5520 2.26GHz original ones.
You should bought the single CPU tray and not the backplane…
I tried 4 different (2 sets) of original 2.26 CPU chips in various CPU slot positions with none working.
Since I didn't trust the Mac Pro and got a Mini, I had just wanted to see if I could isolate the issue the cheapest way, to determine which parts I could sell to try and make back some of the loss. I choose an eBay seller who offered free returns, even though I had hoped not to have to use it.