Hello all
I have a dual CPU 2009 MP flashed to 5.1 with these 2 main changes
-CPUs changed to 2 x Xeon W5690-6 core at 3.4Ghz - total 12 core
-GPU changed to GTX 980 TI - 6 gb RAM
Did the refurbish myself and all went well for some time until total system crash and collapse, when I gave up and sent the machine to a specialist.
When it came back repaired, their feed-back was over heating issues and OS - SSD disk failure. I installed OSX El Capitan on a brand new SSD drive and made further add-ons. Made sure also to feed the GTX GPU from both MP AGP connectors and from a spare SATA -using both the 6 and the 8 pin plugs.
It worked fine for some time, then it started -hard crashing frequently, and I detected in fact that the RAM was failing. This is the total 40Gb RAM config occupying all 8 slots in the optimal way according to Apple
- 4 x 2Gb original Apple - 2009
- 4 x 8Gb added OWC - 2010 / 2011 ?
Swapped failing chips and moved them around and the system seems more stable, using 3 out of the mentioned OWC chips, in banks 1 to 3 / CPU A.
The funny thing is that the system shows them running at 1333 MHz, when they're supposedly made for 1033... If that read is true and the CPUs are running these chips 'over-clocked', wouldn't that be unstable, risking to cook them ?
I'd like just the system to work as it used to do and, hoping that my problems are only about old RAM chips, ask you guys out there for advice around
What -reliable and affordable new RAM chips are available out there ?
Will faster than 1333 Mhz chips still work at this lower speed, all the other specs. unchanged ?
Are Apple 's thermal specs an issue with chips that don't comply ?
Thanks in advance
-Update:
System crashed again... aborted boot-ups.. system freezes.. etc
Brief red light near CPU A memory slots, and another chip down.. I think they're being fried at 1333Mhz
I have a dual CPU 2009 MP flashed to 5.1 with these 2 main changes
-CPUs changed to 2 x Xeon W5690-6 core at 3.4Ghz - total 12 core
-GPU changed to GTX 980 TI - 6 gb RAM
Did the refurbish myself and all went well for some time until total system crash and collapse, when I gave up and sent the machine to a specialist.
When it came back repaired, their feed-back was over heating issues and OS - SSD disk failure. I installed OSX El Capitan on a brand new SSD drive and made further add-ons. Made sure also to feed the GTX GPU from both MP AGP connectors and from a spare SATA -using both the 6 and the 8 pin plugs.
It worked fine for some time, then it started -hard crashing frequently, and I detected in fact that the RAM was failing. This is the total 40Gb RAM config occupying all 8 slots in the optimal way according to Apple
- 4 x 2Gb original Apple - 2009
- 4 x 8Gb added OWC - 2010 / 2011 ?
Swapped failing chips and moved them around and the system seems more stable, using 3 out of the mentioned OWC chips, in banks 1 to 3 / CPU A.
The funny thing is that the system shows them running at 1333 MHz, when they're supposedly made for 1033... If that read is true and the CPUs are running these chips 'over-clocked', wouldn't that be unstable, risking to cook them ?
I'd like just the system to work as it used to do and, hoping that my problems are only about old RAM chips, ask you guys out there for advice around
What -reliable and affordable new RAM chips are available out there ?
Will faster than 1333 Mhz chips still work at this lower speed, all the other specs. unchanged ?
Are Apple 's thermal specs an issue with chips that don't comply ?
Thanks in advance
-Update:
System crashed again... aborted boot-ups.. system freezes.. etc
Brief red light near CPU A memory slots, and another chip down.. I think they're being fried at 1333Mhz
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