crwdns2933423:0crwdne2933423:0
crwdns2918538:0crwdne2918538:0

crwdns2934243:0crwdne2934243:0 oldturkey03 crwdns2934247:0crwdne2934247:0

crwdns2947189:0crwdne2947189:0:

iMac shuts off at random

crwdns2934249:0crwdne2934249:0:

My 17inch iMac G5 will randomly power itself off.

At first i thought it was overheating, so i opened it up and cleaned all the fans and vents to make sure there was no excessive dust and that they all spun freely.

I put it back together, and i've noticed that sometimes i'll power it on and it'll shut itself off after 5 minutes, other times it'll allow me to capture a video from my camera, convert it, and then burn it to disk.

Sometimes it'll happy run for a few hours, or even a few days, other times it'll not last the aforementioned 5 minutes.

Because of the mass variance in uptime, i'm not convinced its a PSU problem.  Because i was able to get it to work pretty hard with the video capture/encoding/burning, i'm not convinced its over heating.  plus, after having laid eyes on the cooling components myself, and having given it a jolly good clean (not that it really needed it), i'm even more convinced its not an overheating issue.

I reset the PMU and PRAM after reading about it online, but it still occurs.

I'm at a loss, and not really willing to take it to someone to get charged an arm and a leg for an overly simplistic diagnosis of faulty power supply.

What say you?

crwdns2866306:0crwdne2866306:0:

iMac G5 17" Model A1058

crwdns2915684:0crwdne2915684:0:

open

crwdns2934251:0crwdne2934251:0:

+36577

crwdns2934241:0crwdne2934241:0 Moshall

crwdns2947189:0crwdne2947189:0:

iMac shuts off at random

crwdns2934249:0crwdne2934249:0:

My 17inch iMac G5 will randomly power itself off.

At first i thought it was overheating, so i opened it up and cleaned all the fans and vents to make sure there was no excessive dust and that they all spun freely.

I put it back together, and i've noticed that sometimes i'll power it on and it'll shut itself off after 5 minutes, other times it'll allow me to capture a video from my camera, convert it, and then burn it to disk.

Sometimes it'll happy run for a few hours, or even a few days, other times it'll not last the aforementioned 5 minutes.

Because of the mass variance in uptime, i'm not convinced its a PSU problem.  Because i was able to get it to work pretty hard with the video capture/encoding/burning, i'm not convinced its over heating.  plus, after having laid eyes on the cooling components myself, and having given it a jolly good clean (not that it really needed it), i'm even more convinced its not an overheating issue.

I reset the PMU and PRAM after reading about it online, but it still occurs.

I'm at a loss, and not really willing to take it to someone to get charged an arm and a leg for an overly simplistic diagnosis of faulty power supply.

What say you?

crwdns2866306:0crwdne2866306:0:

iMac G5 17" Model A1058

crwdns2915684:0crwdne2915684:0:

open