Power supply really hot!

I know there are a couple of bad caps inside my G5 PS, but I am waiting for the new caps to come from Digikey which should be here soon.
When I was testing it out I had the iMac G5 open and laying flat on a soft cloth towel.
Now everything inside was warm to the touch nothing really jumping out at me as being too hot. That is until I touched the power supply. No I didn't get burned as my reflexes are still pretty good.
Now my question is, even with the caps after they are replaced, should the power supply be this hot or will it cool down to a safe handling temperature?
I am thinking about doing the mod with adding the fan(s) (2 - 80mm or 1- 120mm) for the CPU and possibly adding a new mod to put 3-4 small 30mm to 40mm fans on the back of the iMac near the power supply at the bottom of the iMac G5 to draw the heat out. I do not want to push air in as that would just heat up the inside of the iMac. So the way the PS is made, it would pull air from the bottom and exhaust it out the back.
Let me know about the above question in blue.
Message was edited by: cat3rn

The power adapter has several internal protective circuits, including over-temperature. If the temperature gets too high, the power adapter will shut itself off. When charging, the power adapter should be on a hard, flat surface to assure proper air flow.

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45w power supply getting hot

When I plug my 45w power supply into the extended cable it brick gets incredibly hot. When I plug it directly into the wall with the 2 prong plug it does not get as hot.
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It will also depends on WHEN you are checking the brick. If you check the brick after say, you have been watching Netflix movies FULL screen for the last 2 hours, it will likely be more hot than it would if you were just surfing around the internet. Also, it would be warmer if it was currently charging the battery as opposed to JUST powering the computer. It shouldnt matter if it is the long cable or the direct plug. Last, define HOT? What you consider HOT may not be hot at all to me. It is a completely subjective thing. Obviously if it is so hot that you cannot touch it, that is a different story.

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I purchased a Satellite P55W-B5318 yesterday. While charging the laptop the power brick got very hot, too hot to handle for more than a few seconds. The model number of the power supply is PA5177U-1ACA. I read Toshiba has replaced some power supplies which ran hot. Should I request a new power supply?

You should call Tech Support at 1-800-457-7777 immediately. It should only get warm to the touch. But the best thing to do is take it back where you bought it for an exchange.
C.B.
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Can anyone tell me the acceptable range for an operating temp in a 450 watt power supply? I have an Antec 450W and it runs around 56 degrees celcius. Speed fan tells me it's too hot. Is there anyway I can cool it down? Thanks.

Wow !
i can't believe that it is hotter from my cpu while o/c'ing to 2500Mhz
My 300w elanvital PSU which is overloaded with my system , is working at 40-42C.
i thought that it must be around 44-46 C for 450W power supply ..........
Do you think is there any thing getting too much power from your PSU..
HSF , LED etc. ? or is there wire shortcut making PSU hot ?

"Wall wart" on power supply too hot to touch

I'm wondering if this is a normal condition or something to be worried about.

You should allow good air circulation to prolong its lifespan, and I don't think keeping it under your blankets is a great idea
I have worked with electrical engineers, who have introduced me to the concept of a .6 (60%) safety factor. This means that in any design, you include tolerances more than 60% above what is required for safety. I have no double Apple has done this too. This means things like if your device will spontaneously combust at 500 degrees, make it break at 250 degrees, and the like.
The only time you need to be really worried is with goods that are counterfeit (like some Apple batteries and power supplies from eBay). The rest of the time, you're likely to find very good safety factors in them

Sometimes my power supply gets hot

I have the newest MacBook Pro 15 with the 2.5 Ghz Intel i7. I've noticed that sometimes my power transformer gets pretty when charging the laptop. Other times it doesn't get warm at all. Why would this happen? Is there something wrong with it?

Hi!
I have the exact same notebook as you.
I'm not sure that this is true, but I think that this depends on the difference in charge.
For example-- as charge from (100% - 40% = 60%) requires more time, it may heat up.
whereas, a charge up 10% won't heat up as much.
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Battery Life is short and when i do charge the power supply gets to hot to touch?

Hi! I'm not sure whats Wrong with my MacBook Pro 15" - Mid 2010, i7, 4gb RAM, 512mb Graphics.
When i charge my MB it has a really short life (50 - 60 min) without using high demanding programs. I've had a look in system information and i found this; Full Charge Capacity (mAh): 4858
im not sure what it should be but does it sound like a healthy battery?
My second question, the power supply is hot to touch is this a contributing factor? I took it in to apple and they suggested to buy a new charger, so £65 later and i still have the overheating of the power supply and the short battery life problems, HELP!
Matt

Mattwilkinson21 wrote:
the power supply is hot to touch
That is not a good sign. Check the connection on the MBP to see if there is any foreign matter or discoloration evident.
Open System Information>Power and post this from your MBP:
(make certain that the charger is attached)
Also run an Apple Hardware Test. You may use the appropriate original install disk for this which has the AHT instructions printed on it.
Note that an error free AHT is not definitive.
Ciao.

Is power supply 3k-X 715W AC hot swappable on Cisco 3750X?

Is power supply 3k-X 715W AC hot swappable on Cisco 3750X?
Thanks
Diego

Sorry, found the answer http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/hardware/installation/guide/3750x_3560x_HIG/HIGFRU.html
The power supply is hot-swappable. In some configurations, such as full PoE+ or power sharing mode, removing a power supply causes powered devices to shut down until the power budget matches the input power of a single power supply. To minimize network interruption, hot swap the power supply under these circumstances:
–The switch is connected to an XPS 2200 and sufficient power is available.
–The switch is in StackPower mode and sufficient power is available (Catalyst 3750-X only).
–The switch is powered by other switches in a power stack, and no active backup is in progress.
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I was just walking with my iPhone and turn on iPod and the screen switched off, I've tried to turn on iPhone, but he doesn't turn on but the top part of iPhone became really HOT, like +60 +70C. I can't even hold the phone in my hands for the top part. Power button really HOT probably +80C. The main problem that I can't take out the battery and today in Sunday and I'm in the middle of Russia. There is no Apple service at all.
Message was edited by: Alexey Pankov1

Well, my screen went black, but I don't know if iPhone is turned off, there is no signs if the screen is dead you can't figure out if the power is on or off. Looks like in Apple they don't think that there should be a light indicator of power.
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Hello,
First I will give machine/hardware specs of interest:
2 x 3 GHz Quad-Core Intel Xeon (pre 2009)
8 GB 800 MHz DDR2 FB-DIMM
NVIDIA Quadro FX 5600 (running 2 displays)
Apple RAID Card/Controller
SMC Version: 1.25f4
*venting dimensions around computer: top=18", left side=3", right side=3" and back=18".
Software of interest currently running:
OS X 10.5.8
iStat Menu
SMC Fan Control
My machine has been shutting down spontaneously and I suspect either CPU or power supply overheating. In the 5 instances this has occurred, the room was very warm (AC was not on) and I was running HandBrake with CPU at full and an iStat reading of 145 F. Ambient was 77 F and I was not reading power supply temps at the time. I figured for sure this must be a CPU overheating issue. However, just a few hours ago I had another shutdown. The room was warm again but I was not running Handbrake, but StarCraft II. I have played a lot of Starcraft II with no problems until tonight.
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The following may or may not be an issue, however, leave no stone unturned. I currently have 12 external devices running on USB. 4 WD passport drives, 1 DVD writer, 5 WD powered drives plus the keyboard and mouse. Also, the Mac Pro is plugged into a small UPS.
In all my forum searches, I just can't seem to answer some basic questions:
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2. What are optimal (normal) running temps for Mac Pro's? (everyone seems to have opinions, but there doesn't appear to be a technical specification anywhere).
3. I thought the fans, especially CPU fans, were supposed to kick in when the heat rises. Why are mine staying at minimal rpm's?
Finally, does it look like I need new power supplies? Fans?
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Also, the Mac Pro is plugged into a small UPS.
Put your peripherals on that.
Don't share the same circuit for A/C as the Mac Pro, and put the Mac on 1300VA UPS at least.
As for all those external drives.... I'd consolidate into a good SATA case or two.
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No. You probably should have backed it up while it was working during those 6 days...

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Why does my power supply converter get so hot

My power supply get very hot when it is plugged into an outlet. Will this hurt my Mac?

http://www.bresink.com/osx/TemperatureMonitor.html
http://www.macupdate.com/app/mac/20364/istat-pro

Power supply really hot!

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