Broken logic board cpu pins!!

hknatm

macrumors member
Original poster
Dec 21, 2018
75
6
Hi all, i a really sad right now. I accidentally (dumb me!!) broke the cpu tray’s pins (motherboard side) is there any thing that i can do or just need to replace the motherboard?

Mac pro 4.1>5.1 dual cpu.
 

h9826790

macrumors G5
Apr 3, 2014
12,970
5,846
Hong Kong
If just few bent pins, you may fix them physically (carefully). Definitely not an easy job, but possible.

If the whole pin is fell off (but just 1 or 2 pins). The socket may still works. But it will be very depends on which pin is broken. For some pins, you may simply lost a RAM slot. Some other pin may cause the socket completely useless. And if you are lucky enough to just break the reserved pins, your socket may work without any noticeable issue.
p.png
1.png
2.png
 

hknatm

macrumors member
Original poster
Dec 21, 2018
75
6
If just few bent pins, you may fix them physically (carefully). Definitely not an easy job, but possible.

If the whole pin is fell off (but just 1 or 2 pins). The socket may still works. But it will be very depends on which pin is broken. For some pins, you may simply lost a RAM slot. Some other pin may cause the socket completely useless. And if you are lucky enough to just break the reserved pins, your socket may work without any noticeable issue.
View attachment 817703 View attachment 817705 View attachment 817704
But i am having trouble with this pins
 

tsialex

macrumors 603
Jun 13, 2016
5,601
6,420
Brazil
But i am having trouble with this pins
This socket is not economically replaceable, cost of this will be a lot more than the price of an used backplane on eBay, just replace it.

Remember that you have to buy a 2009 one. Do not buy one from a 2010/2012 Mac Pro, SMC mismatch.
 

pl1984

Suspended
Oct 31, 2017
2,230
2,603
What h9826790 still applies, depending on which pin(s) have broken off you may lose some functionality or all of it. The best solution is a MB replacement.
 
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hknatm

macrumors member
Original poster
Dec 21, 2018
75
6
This socket is not economically replaceable, cost of this will be a lot more than the price of an used backplane on eBay, just replace it.

Remember that you have to buy a 2009 one. Do not buy one from a 2010/2012 Mac Pro, SMC mismatch.
Does it differ if the backplane single cpu or dual? I have a single cpu mac pro i can replace the backplane from that one.
 

hknatm

macrumors member
Original poster
Dec 21, 2018
75
6
What h9826790 still applies, depending on which pin(s) have broken off you may lose some functionality or all of it. The best solution is a MB replacement.
I loose all functionalies , no boot :/
 

hknatm

macrumors member
Original poster
Dec 21, 2018
75
6
If you are going to have the all trouble of removing the backplane from the single one to replace the damaged one into the dual Mac Pro, do the whole caboodle.
Isnt it better to just move the cpu tray and hdd pcie cards etc to single cpu machine?
 

hknatm

macrumors member
Original poster
Dec 21, 2018
75
6
I have found a way to work with !!

I found the broken pin (after 30mins effort), put it in the cpu tray hole pray for to make it align with the pin on the logic board, and woalaa!!! It chimed :)
What do you think is it stable? :))

 

h9826790

macrumors G5
Apr 3, 2014
12,970
5,846
Hong Kong
I have found a way to work with !!

I found the broken pin (after 30mins effort), put it in the cpu tray hole pray for to make it align with the pin on the logic board, and woalaa!!! It chimed :)
What do you think is it stable? :))

If it work, don't touch it.
 
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pl1984

Suspended
Oct 31, 2017
2,230
2,603
I have found a way to work with !!

I found the broken pin (after 30mins effort), put it in the cpu tray hole pray for to make it align with the pin on the logic board, and woalaa!!! It chimed :)
What do you think is it stable? :))

I wouldn't trust it. I'd spend the time / money to replace the mainboard or swap everything to the other system. IMO you're risking an unstable system which, according to Murphy, will fail at the most inopportune time.
 
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hknatm

macrumors member
Original poster
Dec 21, 2018
75
6
I wouldn't trust it. I'd spend the time / money to replace the mainboard or swap everything to the other system. IMO you're risking an unstable system which, according to Murphy, will fail at the most inopportune time.
That is definitely true . Will look for it but now i am just gonna go with for a time.