MacPro does not power on... and does not attempt to boot
crwdns2934249:0crwdne2934249:0:
This machine has not been used much. It was purchased in 2011, and has been idle for about a year.
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1: no light appears at the front where I push the start / on button
-
-
2: no internal sounds are evident
-
-
3: I replaced the BR2032 with a CR2032 and no different outcome when I push on button
-
-
4: not much dust inside
-
-
5: I removed the graphics card and re-seated. Did the same with CLU shelf and disks.
-
-
6: a red light flashes, if I attempt to plug in while CPU shelf is out, so there is power to the mother board
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# No light appears at the front where I push the start / on button
+
# No internal sounds are evident
+
# I replaced the BR2032 with a CR2032 and no different outcome when I push on button
+
# Not much dust inside
+
# I removed the graphics card and re-seated. Did the same with CLU shelf and disks.
+
# A red light flashes, if I attempt to plug in while CPU shelf is out, so there is power to the mother board
It was working fine when I shut it down a year ago.
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Any ideas?
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Thanks,
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-
John
+
Thanks, John
=== Update (01/27/2016) ===
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[image|746260]
The upload tool is a bit funky.
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=== Update (01/27/2016) ===
[image|746258]
Still funky... The point with pics is that there is virtually no dust.
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=== Update (01/28/2016) ===
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[image|746996]
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Darn... I there are bugs with this editor and iPads. The image does not show up in Comments but does appear in Posts... so this is now a post.
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=== Update (07/12/2017) ===
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Hi Steve,
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I am glad you asked and that iFixit provides a facility to reply.
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Machine:
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Mac Pro - Mid-2010
-
-
Symptom:
-
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If I let the machine sit unplugged for a week. It would then start, but would automatically shut down after several hours and never re-start... until say, another week had elapsed.
-
-
--
-
-
I am technical from a software perspective and I think I can fix anything... however, I failed personally and then took the time to find someone who would not just swap the logic/mother-board and call it fixed. Finding someone was not easy. I live in Canada, and this will sound harsh but all Apple certified places that I took the machine to were providing swap and replace services. I did not not want to do this for several reasons. They quoted the cost of a thousand for the logic board from Apple, then their labour.
-
-
I have two (2) identical machines. One was never used and the other is used regularly. The never used machine was the one that failed. Once, I decided I was going to fix it, I swapped all the components between the two machines and found that it was not the components. Then I took the logic board/ mother-board out and cleaned it with electro solvents, because sometimes the machine would work for say a day, then fail to start... for forever. I suspected that the problem was either capacitor or power. Cleaning did not resolve the problem.
-
-
I finally found a company that would do on-board repairs. They will charge $400 to replace the power chip.... and guarantee their work for three (3) months. I will get it back next week. I will post here to confirm that it is fixed.
-
-
--
-
-
Normally, I use high quality surge protectors but I am thinking that this machine may have been plugged directly into the house power system... we have electrical storms here, hence the power chip failure. I am guessing.
MacPro does not power on... and does not attempt to boot
crwdns2934249:0crwdne2934249:0:
This machine has not been used much. It was purchased in 2011, and has been idle for about a year.
1: no light appears at the front where I push the start / on button
2: no internal sounds are evident
3: I replaced the BR2032 with a CR2032 and no different outcome when I push on button
4: not much dust inside
5: I removed the graphics card and re-seated. Did the same with CLU shelf and disks.
6: a red light flashes, if I attempt to plug in while CPU shelf is out, so there is power to the mother board
--
It was working fine when I shut it down a year ago.
--
Any ideas?
Thanks,
John
=== Update (01/27/2016) ===
[image|746260]
The upload tool is a bit funky.
=== Update (01/27/2016) ===
[image|746258]
Still funky... The point with pics is that there is virtually no dust.
=== Update (01/28/2016) ===
[image|746996]
Darn... I there are bugs with this editor and iPads. The image does not show up in Comments but does appear in Posts... so this is now a post.
+
+
=== Update (07/12/2017) ===
+
+
Hi Steve,
+
+
I am glad you asked and that iFixit provides a facility to reply.
+
+
--
+
+
Machine:
+
+
Mac Pro - Mid-2010
+
+
Symptom:
+
+
If I let the machine sit unplugged for a week. It would then start, but would automatically shut down after several hours and never re-start... until say, another week had elapsed.
+
+
--
+
+
I am technical from a software perspective and I think I can fix anything... however, I failed personally and then took the time to find someone who would not just swap the logic/mother-board and call it fixed. Finding someone was not easy. I live in Canada, and this will sound harsh but all Apple certified places that I took the machine to were providing swap and replace services. I did not not want to do this for several reasons. They quoted the cost of a thousand for the logic board from Apple, then their labour.
+
+
I have two (2) identical machines. One was never used and the other is used regularly. The never used machine was the one that failed. Once, I decided I was going to fix it, I swapped all the components between the two machines and found that it was not the components. Then I took the logic board/ mother-board out and cleaned it with electro solvents, because sometimes the machine would work for say a day, then fail to start... for forever. I suspected that the problem was either capacitor or power. Cleaning did not resolve the problem.
+
+
I finally found a company that would do on-board repairs. They will charge $400 to replace the power chip.... and guarantee their work for three (3) months. I will get it back next week. I will post here to confirm that it is fixed.
+
+
--
+
+
Normally, I use high quality surge protectors but I am thinking that this machine may have been plugged directly into the house power system... we have electrical storms here, hence the power chip failure. I am guessing.
MacPro does not power on... and does not attempt to boot
crwdns2934249:0crwdne2934249:0:
This machine has not been used much. It was purchased in 2011, and has been idle for about a year.
1: no light appears at the front where I push the start / on button
2: no internal sounds are evident
3: I replaced the BR2032 with a CR2032 and no different outcome when I push on button
4: not much dust inside
5: I removed the graphics card and re-seated. Did the same with CLU shelf and disks.
6: a red light flashes, if I attempt to plug in while CPU shelf is out, so there is power to the mother board
--
It was working fine when I shut it down a year ago.
--
Any ideas?
Thanks,
John