Hi guys,
Ive got (what once was) a working mac pro 4.1 flashed to 5.1 and bought a pair of used x5690s on ebay. I wanted to upgrade the stock CPUs to the x5690s on my dual cpu mac pro. Im aware that these must be delidded to avoid thermal problems, however, prior to delidding i wanted to test them first.
I read forums that using one cpu will boot up with the fans on full blast. None of this happened for my case, ive installed one of the x5690s on socket “a” with socket “b” empty. I get no boot chime, nothing being displayed, no onboard led errors, other than the power led suddenly blinking quickly and continuously on the first attempt with the fans running like idle.
At that point ive closely checked the sockets for debris, bent or broken pins (also inspected the cpus), made sure the video connections were secured, tried doing the pram reset multiple times, also did the smc reset by leaving the computer unplugged for 20 secs, gently tightened more the cpus which none of this worked.
Ive then use the other x5690 and hook it up on cpu a with b still being empty, the issue still remained, the only difference noted is that the power led was solid white.
Afterwards, i hookup both x5690s on both sockets, making sure they’re seated properly and the issue still remains.
Finally, I hookup both the original cpus and strange enough the issue still remains.
Ive found a forum with someone facing similar issues but doesn’t really discuss the issues im facing. At this point im out of ideas and currently stuck with a non working mac pro.
A theory i came up with is that one or both 5690s might have been previously used in a fried or damaged motherboard that could’ve ruined my cpu tray that not even the original cpus that came with my mac would suddenly not work anymore, but i knock on wood and hope that this isn’t the case.
Ive got (what once was) a working mac pro 4.1 flashed to 5.1 and bought a pair of used x5690s on ebay. I wanted to upgrade the stock CPUs to the x5690s on my dual cpu mac pro. Im aware that these must be delidded to avoid thermal problems, however, prior to delidding i wanted to test them first.
I read forums that using one cpu will boot up with the fans on full blast. None of this happened for my case, ive installed one of the x5690s on socket “a” with socket “b” empty. I get no boot chime, nothing being displayed, no onboard led errors, other than the power led suddenly blinking quickly and continuously on the first attempt with the fans running like idle.
At that point ive closely checked the sockets for debris, bent or broken pins (also inspected the cpus), made sure the video connections were secured, tried doing the pram reset multiple times, also did the smc reset by leaving the computer unplugged for 20 secs, gently tightened more the cpus which none of this worked.
Ive then use the other x5690 and hook it up on cpu a with b still being empty, the issue still remained, the only difference noted is that the power led was solid white.
Afterwards, i hookup both x5690s on both sockets, making sure they’re seated properly and the issue still remains.
Finally, I hookup both the original cpus and strange enough the issue still remains.
Ive found a forum with someone facing similar issues but doesn’t really discuss the issues im facing. At this point im out of ideas and currently stuck with a non working mac pro.
A theory i came up with is that one or both 5690s might have been previously used in a fried or damaged motherboard that could’ve ruined my cpu tray that not even the original cpus that came with my mac would suddenly not work anymore, but i knock on wood and hope that this isn’t the case.