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Crazy idea. 32gb ram modules in a cMP. Anyone tried this?
- Thread starter William Payne
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Sorry for threadjacking. Just thought there would be more readers in this thread than if i create new for one simple question.
I just upgraded 1 old Mac Pro to dual Xeon 5690 and wanted to add RAM.
All RAM slots are not working, due to problems below so i had to rearrange them.
Does this impact performance of the machine?
Thanks!
AliExpress supplied couple of CPUs that were in very bad condition, and only refunded one of them.
![IMG_3713.jpg]( "IMG_3713.jpg")
![IMG_3714.jpg]( "IMG_3714.jpg")
I delidded them both in a vice and mounted them, and one of them was missing 2 or 3 contact pads for VCC / GND. I made the conclusion that maybe the CPU will run without them and mounted the CPU. Machine boots and runs fine, however RAM slot 5 is not active.
And since i wanted to put more RAM in the machine, this in not very good. Because using 4 modules should be in the 1+2 5+6 slots.
Does anyone know how much this impacts the performance, if i run slot 1+2 and 6+7 instead?
They are all running on 1333Mhz after the PRAM reset and no memory problems are present.
![1709381379370.png]( "1709381379370.png")
I just upgraded 1 old Mac Pro to dual Xeon 5690 and wanted to add RAM.
All RAM slots are not working, due to problems below so i had to rearrange them.
Does this impact performance of the machine?
Thanks!
AliExpress supplied couple of CPUs that were in very bad condition, and only refunded one of them.
I delidded them both in a vice and mounted them, and one of them was missing 2 or 3 contact pads for VCC / GND. I made the conclusion that maybe the CPU will run without them and mounted the CPU. Machine boots and runs fine, however RAM slot 5 is not active.
And since i wanted to put more RAM in the machine, this in not very good. Because using 4 modules should be in the 1+2 5+6 slots.
Does anyone know how much this impacts the performance, if i run slot 1+2 and 6+7 instead?
They are all running on 1333Mhz after the PRAM reset and no memory problems are present.
Hello gentlemen, I upgraded my Mac Pro 5.1 to a Xeon X5690 processor, I bought 2 memory modules 32GB DDR3L 1333MHz PC3L-10600R, the memories do not generate a red error light on the motherboard, the boot sound plays on the Mac Pro , the selection screen between MacOS Sonoma (on an SSD) and Monterray (on an NVMe) appears, but neither of them can advance on the Apple screen, the progress screen does not appear. When I return to the old memory modules, operation is normal. I'm running Opencore 1.4.0. What to do?
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My case is identical to yours. MacPro 4.1 > 5.1 single processor (1 Xeon X5690), 4x 32GB DDR3L 10600R, boot on Linux OK (128GB detected), but on MacOS I get stuck at boot, it stays on the apple screen but the progress bar is not shown. Can you help me?
I have a Mac Pro 4.1 > 5.1 and I already use Opencore in version 1.4.2, with Sonoma. Automatically it does not advance in Boot with 32GB memories per module, I want to know what configuration I should do to break this barrier.
You need to read this thread in more detail. Everything you need is contained in this thread.
