Booting Temperature Issue
- Thread starter Moptop
- Start date
DeltaMac
Tech
I assume you don't keep your iMac in a location that gets that hot, so does your iMac actually shut itself off when it is warmed up?
The power supply on your iMac is known to be a little fragile. so you should try simply replacing the power supply. Apple may do this at no charge.
http://www.apple.com/support/imac/repairextensionprogram/
Even if you pay for the repair, the power supply is not too expensive, and is a 5-minute job to replace.
You should also check the air intake area all along the bottom edge of your iMac. Make sure that area is not plugged with debris. I see some of those models that are completely coated with lint and dust. A little vacuum brush under that area sometimes makes a big difference.
The power supply on your iMac is known to be a little fragile. so you should try simply replacing the power supply. Apple may do this at no charge.
http://www.apple.com/support/imac/repairextensionprogram/
Even if you pay for the repair, the power supply is not too expensive, and is a 5-minute job to replace.
You should also check the air intake area all along the bottom edge of your iMac. Make sure that area is not plugged with debris. I see some of those models that are completely coated with lint and dust. A little vacuum brush under that area sometimes makes a big difference.
I've never had it overheat and shut down, yeah its in the shade. My computer's serial number is in the range of applicable ones on the Apple page. (W850*********).
As for the power supply, it was replaced +/- 3 years ago (Along with the fans), I had a total failure of it. But I don't think it is an issue with the current one, diagnostic green light #1 inside the computer is on when it is plugged in. (Indicates power getting past the power supply, at least.).
The CPU temp hovers around 153ºF at high CPU usage, and around 142ºF at idle, is this abnormal?
As for the power supply, it was replaced +/- 3 years ago (Along with the fans), I had a total failure of it. But I don't think it is an issue with the current one, diagnostic green light #1 inside the computer is on when it is plugged in. (Indicates power getting past the power supply, at least.).
The CPU temp hovers around 153ºF at high CPU usage, and around 142ºF at idle, is this abnormal?
DeltaMac
Tech
You said that your iMac does not shut itself off after heating up.
Not sure if I understand your first post, then.
How does your iMac get so hot before you turn it on?
Do you shut if off _because_ you think it's getting hot? Or,
do you hear the fans kick up and then shut it off?
I guess what I am asking is - Why do you need to start your iMac, if it was already just running? If the fans come on, you should let the fans do their job to cool your system.
Do you have any software installed that will monitor the temperature and the fans.
iStat Pro widget is pretty good - http://www.islayer.com/index.php?op=item&id=7
eric2006
iMovie Professional
Have you seen this?
http://docs.info.apple.com/article.html?artnum=300908
also,
http://www.apple.com/support/exchange_repair/imac.html
If you need to buy a part, it might make more sense to sell this machine and get a new/used/refurbished one, unless you can get a good deal on a part.
http://docs.info.apple.com/article.html?artnum=300908
also,
http://www.apple.com/support/exchange_repair/imac.html
If you need to buy a part, it might make more sense to sell this machine and get a new/used/refurbished one, unless you can get a good deal on a part.
DeltaMac
Tech
If you are 'bumping' about the shutdown when you sleep issue, it's probably related to the marginal power supply that you have. But, you should make sure it's not some software issue. You should try making a new user, and check that sleep works properly (or does the same)
Does sleep work in any circumstance - automatically, or manually? Does your system go to sleep when you briefly press and release the power button (as it should do)?
If you always get a shutdown, and sleep just doesn't happen - get your power supply replaced.
Does sleep work in any circumstance - automatically, or manually? Does your system go to sleep when you briefly press and release the power button (as it should do)?
If you always get a shutdown, and sleep just doesn't happen - get your power supply replaced.
DeltaMac
Tech
I will repeat - power supply.
First, have you tried pressing the SMU reset button? It's one of the reset buttons, near the LEDs that you mentioned. The SMU is the lower of the two. Press and release (with no power or any other cables attached), and that's all you can do. Put your iMac back together, and try the sleep again. If it simply shuts off, then get a replacement power supply.
If you only have a single button inside, then reassemble, and leave all cords disconnected. Reconnect the power cord, while you simultaneously press and hold the power button. Release the power button, and attach your keyboard and mouse, then power back up. Check your sleep again. If it just shuts down, without sleeping, then I still will say 'power supply'
First, have you tried pressing the SMU reset button? It's one of the reset buttons, near the LEDs that you mentioned. The SMU is the lower of the two. Press and release (with no power or any other cables attached), and that's all you can do. Put your iMac back together, and try the sleep again. If it simply shuts off, then get a replacement power supply.
If you only have a single button inside, then reassemble, and leave all cords disconnected. Reconnect the power cord, while you simultaneously press and hold the power button. Release the power button, and attach your keyboard and mouse, then power back up. Check your sleep again. If it just shuts down, without sleeping, then I still will say 'power supply'