New battery/power supply problems

i bought my ibook on ebay, put in some upgrades and am pretty happy with it. One thing keeps making me extrememly angry. Randomly, without warning, the power supply cuts out. When I look at the port, the light's still on. This wouldn't be so bad because usually the battery would kick in. However, mine came without a battery. So, everytime my power supply cuts, the computer shuts off. What's the problem?

Mike,Check your Energy Saver options (Apple Menu > System Preferences > Energy Saver > Options Tab > 'Schedule' make sure this isn't set to turn off your iBook.
I'd also try resetting the Power Management Unit. (Click this link and follow the instructions).
At least your clamshell's a good deal lighter! (Doesn't it tip back too easily without the weight under the front?).
The problem with running a machine like this is that the Clamshell has no internal battery (unlike every other Mac ever!) this means that you really do need the main battery for correct operation of the system. You'll be forever re-setting date/time etc so it may be worth inv a main battery - even if it's a really cheap one that only gives you 10 minutes run time - it will guard against this type of problem.
regards
mrtotes

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Power supply problem a little better after unplugging imac for 24 hours

Hello,
I'm currently having power supply problems (at least I hope it's the power supply and not the mother board), similar to many others I've seen on these boards. What I've noticed is that if I unplug my iMac for about 24 hours I can get it to run again for a little while. Unplugging it for a few minutes (or even 8 hours) doesn't seem to help. My iMac won't get much further than the starting chime before it loses power. But it seems to me that unplugging it for 24 hours has gotten me between 5 days to 5 hours of use before I unexpectedly lose power.
Is there anything to account for this or am I just imagining things? Ultimately, I don't think the answer will help me much, but I am curious to know. I'm taking my iMac to a Mac Genius tomorrow to see if they can help diagnose the problem. I saw a little hit in my video today, which was a first, so I suspect the problem may be getting worse. I'll probably be buying a new power supply soon.

I'm having the same problem. They say to restart you have to unplug the power, wait 10 seconds and then plug it back in but apparently it's not enough. I have to unplug for about 30 seconds, plug back in, and wait anywhere from 30 minutes to several hours before it'll start up again properly. The last time I had this issue was in october '06- when I had a new logic board and power supply put in. Now I'm worried because my applecare is expired by about 3 months. I bought the computer in feb. '05. I hope a new board doesn't cost more than what the computer itself is worth but I'm afraid that'll be the case...

Under battery power supply Tecra A7 works slowly

I have a notebook TECRA A7, and I have some problem with the battery. When I don't use alimentation AC, the notebook gets too slowly with programs like Netbeans.
How can I solve this problem?

Hello
To save battery power and allow longer notebook usage Toshiba has designed Toshiba power saver tool. As you can see there are few different power profile available. If you use battery power supply it will be automatically switch to Normal profile and there is CPU speed set to lower level. You can change it manually and set to maximum performance.
NetBeans software is not known to me but it is possible that notebook runs slowly if software needs more CPU power.

Satellite C660 - WLAN disconnects on battery power supply

HI
I have a new Satellite C660 which is a great wee machine BUT every time I disconnect the power cable the wireless connection looses the internet connection. Wireless is fine and all settings accurate. I have checked the amended the power settings and they are set to be ok whether on battery or power.
But still I cannot disconnect the power cable without losing the warless connection. The modem is still on and functioning and even more strongly I can access other peoples wireless connections whilst being off line.
Please any ideas?
Thanks

When you use notebook on battery power supply and use FN+F8 can you enable and disable WLAN module properly?
Ave you checked WLAN settings in device manager properties (click here )?

[PT880-Neo LSR]Power supply problem

Hello,
We've installed the new motherboard today, it model is PT880 Neo LSR. Well we've got everything plugged in, but when we try to turn on our computer it doesn't turn on.
There is a case switch, but when turn on, the fans work for like 1 second then it stop.
I've tried the Troubleshooting guide on the website, and studying the Manual, but I could not find a way to fix this.
Can anyone help us fix this power supply problem please?
Thanks

Quote
Originally posted by DarkDuelist
yea, it comes with the 4-pin atx1 connector and 20-pin atx2 connector.
But i just exchanged another mainboard, and still not work. the first time i test it, i only plug the 4-pin and 20-pin connector into the mainboard and it worked. i thought the problem was solved. so i put everything else in (cpu, hdd, cd-rom, dvd-rom...) then test it again. I only heard a sound psssst, and nothing run. I tested it many time and it still not work. Then I UNPLUG the 4-pin connector from the power supply to the mainboard, and test again, this time, only all the fan RUN except the the fan in the power supply DID NOT run. Is it because that the power supply got problem? I used another power supply 420w to test but nothing run either.
MATSONIC motherboard MS9087C
DDR 400
Intel celeron 2gh 400 fsb
Macron 350w power supply
The psssst sound----sounds like something shorted out. Pull everything out and put it back in with a different PSU.
Don't put a hard drive or floppy in-----just CPU, RAM mobo, vid card, fans, PSU-----see if it will post.

Ask your question.MC508LL/A power supply problems, Ask your question.MC508LL/A power supply problems, Ask your question.MC508LL/A power supply problems

I have just replaced my older IMac with a new one because of a cronic power supply problem. Now I see this one is doing the same thing. Is anyone else having the same issues with their MC508LL/A.

I'm with babowa there ... I would suspect the power souce, not the PSU. Where you live could be an issue depending on how reliable and 'clean' the electricity is to your home. If that is ok then it could be the wiring in your house ... if it were mine, I'd need an electrician to check it out.
Personally, I've had computers hooked to my electric service since 1995 and no UPS (despite recommendations) and never encountered a problem with the computers ... many electrical issues (brown outs, outages, etc), just been fortunate they didn't affect my machines.

Asus power supply problems

I am considering a new Asus netbook but have been reading a lot of failure issues on their power supplies going clear back to Sept. Even as soon as December I find people saying they cannot get them replaced because Asus says they are still out of stock. Has anyone got any updated information on this?

As I said I am considering purchasing a new Asus netbook. I do not have one yet. If you look at even the Best Buy customer ratings you will see several with the power supply problem. The internet is full of these complaints on other web sites.

Replacing Power Supply Problems

Apple Care had kindly sent me a new power supply. It is a self servicing part, i.e. I have to install it myself. Tried for 2 hours yesterday to get the old one out...didn't work.
The problems:
1. Middle screw on back of power supply does not get loose [the screw close to the power cord connector]. I tried to pull the power supply up while loosening screw...no success. Did anybody run in the same problem...how did you get this screw unstuck?
2. Middle case screw [the one at the bottom of the computer] needs to be turned to the right...which is in contradiction to the downloadable manual...but the front ot the screw still touches the power supply...and possibly holds it in.
How easy should the power supply come out...how much force can I apply without breaking the computer's case?
3. Ambient light sensor connector: comes as separate cable. Since I have not gotten the old power supply out, I do not know how to connect the cable to the new one. There does not appear to be a designated hole on the power supply.
Experiences welcome!
Thanks
Jurgen

hi Jurgen.... i just get a new imac g5 and it presents power supply problems the very first day they bring it... so the retalier took it for a repair..i been wating for two months and no sings of a solution... i am looking for help but i can't reach anyone at apple .... so i need some tips here... what should i do?? i tried the chat agent but they are closed..and the retailer refuse tho give enough info to check out about the repair status..they keep saying that the frabric respond very slow and then that the new part they recieved from apple was defectous... well.. if anyone can give me some tip would be very nice and usefull.. i really don,t now what to do... some email to inform apple the situation ?.... thanks for read this... Fernando

New internal power supply and iMac still not powering up

I recently purchased a new internal power supply for my Intel iMac and after being installed by a local Mac repair shop it still will not power up.
Are there any other issues that could cause an iMac not to start up? The logic board?

I did try to reset the PRAM and SMC before the iMac went completely kaput. But now, even with a new power supply, it won't even turn on. Maybe my replacement power supply is damaged somehow. But the repair shop said my original power supply looked like it was in good condition. Maybe they can test the original one somehow?
So my question is still: If the power supply is good, and if the hard drive is good, but the computer will still not turn on, what is left? Could the logic board be the only remaining culprit here? Are there other factors that could cause my iMac to not start up?

Macbook Battery and/or Power Supply Problem(?)

Hello everybody.
New to these forums but been a Mac user and software developer for many many years.
I've detailed the problem on my blog here: http://vanirsystems.com/danielsblog/?p=209
Basically my battery isn't charging on my Macbook but the power supply is still able to run the laptop - laptop still recognises whether the battery is in/out, have tried all of the usual things:
* leaving it to charge when its off
* leaving the power supply unplugged to get rid of static
* resetting the PSU
Battery has been working fine up until this point, was able to fully charge and run the laptop for hours... then all of a sudden there was nothing.
Battery Model is A1185.
If anyone could get back to me on the forum, or my blog or by email then I would be very thankful.
Many thanks in advance,
Daniel
[ edit ] p.s. really looking forward to trying Mac OS X 10.5 Leopard [/ edit ]
Message was edited by: danieljohnlewis
Message was edited by: danieljohnlewis

As of yesterday, I am experiencing a similar battery problem. The battery shows up in the menu bar as fully charged, and the battery indicator lights also indicate that the battery is charged.
However, my Macbook shuts off about one second after I unplug the power supply. When I try to turn it on again, it begins to boot up (the disc drive makes it's usual racket!), but before the startup sound would occur, it shuts off completely. The screen powers up but doesn't get to the grey screen before everything shuts down.
But interestingly, the battery will keep the Macbook running if I put it to sleep first. (I can unplug it while it's sleeping without a problem, as long as I plug it in again before I turn it on.)
The battery model is also A1185. I've done the battery update. My Macbook's SN starts with 4H6386N and is from Sept. 2006. Am I eligible for the two-year warranty?
Thanks so much for your help.

MacBook goes dead as soon as power cord is unplugged..time for a new battery or other problem?

For months now my MacBook has been iffy with the battery percentage. It will show 2hours then within the next minute 25 min then 10 minutes then it shoots all the way up to 3 hours. Now it won't stay on unless the power cord is plugged in...and says "not charging" at the top of the screen. Am I in need of a new battery? Or is it something else? Have never had this problem before...my MacBook is approximately 3 years old...

You are posting in an iMac forum. I'd recommend re-posting in the MacBook forum.

DC5750 New Power Supply Problems

I have a DC5750 (mini case). Everything is working fine with it. It comes with a 300W power supply. I am in the process of purchasing a new video card for it but the video card requires at least a 500W power supply. I purchased a Cooler Master Extreme Power Plus 550W PSU (http://www.coolermaster.com/products/product.php?act=detail&id=5888).
When I plug in the new power supply and turn on the PC the fans start to spin and then stop and the front power LED goes red and i get 9 continuous beeps followed by a couple of seconds of silence and then the pattern repeats itself. I have checked the HP website documentation for the DC5750 and it says that when you get these beeps to make sure that the correct voltage is set on the back of the PSU. I have made sure of this, it is set to 115V. There was also a long paragraph about the kind of power cord that you should use and I did use the one that came with the PSU and also the one that I was using before hand, but no still dice.
I have unplugged everything except the power to the motherboard when testing it and still nothing. I have sure that the 4-pin connector that goes from the PSU to the mobbo is labeled P3 to match the label on the motherboard. I tried putting in the old power supply and everything works like a charm again.
I read somewhere on these forums last night something about the CPU fan sensor and how some people had to trick their systems into thinking the power supply was putting out the same voltage as the original one. They did this by connecting two pins together but there was something about the fact that the pain had to be rated at 100ohms or something. I couldn't quite understand the solution and since it wasn't my same PC model and it was an old post I decided not to try anything of that sort just yet.
Like i said, the PC was running fine before and it is still running ok right now with the old power supply, I would like to upgrade the PSU though with the new 550W one. After i put the old PSU in i went back into the BIOS to see if there was anything related to the power supply that would stop it from booting but I didnt see anything relevant.
Does anyone have any ideas?
Thanks,
BD
Edit: I just tested the new PSU on a different system and it works just fine.
Message Edited by BSU Dude on 04-29-2009 08:38 AM

Do you remember that post about creatind a resistor connector to bypass? I have a fan not detected eror with my new PSU on the DC5750.

Satellite 2450-201 wont start with battery power supply

Can anyone please help, I cannot power up through the battery at all. When connecting the AC supply, the laptop powers up no problem. And after the intitial power up, I can switch to the battery without any problem. But it won't let me power up through the battery at all.
Can anyone advice, is there any settings that will help or do I need a new battery?

Hi
How about the battery charging status?
Is the battery fully charged?
Try to disconnect the AC adaptor and remove the battery from the notebook for a several time (15-30min) then plug the battery again and try to power up the notebook.
I think also you should check if the issue happens also with the new power pack. Possibly there is something wrong with the battery and you need a new one.
Sorry for such general suggestions but you know, we can only speculate about the issues.

DV63250 Power supply Problems

My son is a new marine in training and bought a New Hp dv6-3250us and tried to charge it to no avail. He is unable to call or ship it out, he is in a very stressful time of his training and wanted this to keep in contact to the outside world. He stated that the laptop shows the charger registering but no lighting bolt or charging green lights. Please HELP! HP Customer support keeps saying he needs to call. HE IS IN THE MILITARY TRAINING FEILD, he can't. How can I help him, I have all the warranty information, serial numbers and so forth. Please advise!

Ask him to unplug the power supply and remove the battery.
inspect the battery to ensure there is no plastic covering the gold contacts and if any is found, remove it
and then put the battery back in place and start up the notebook with the power adapter.
Calibrate the battery
Best regards,
erico
****Please click on Accept As Solution if a suggestion solves your problem. It helps others facing the same problem to find a solution easily****
2015 Microsoft MVP - Windows Experience Consumer

T540p power supply problems

EDIT NOTE : This thread and post have been moved to the top for our escalation purpose. For all furture post and comments please continue to post in this thread.
This issue was about receiving pop up message with title "Lenovo Settings Power" as below:
"Lenovo Settings Power has found a problem with your power supply and has activated the Airplane power mode"
Customer's note:
"We have the same problem on T540p with Windows 8.1 installed.
If someone have a solution, this would be great.
In the case that I found a solution, I will post it here. "
Solved!
Go to Solution.

Similar problem here. I think it's due to intermittent contact between the pins on the output connector of the ac power adapter and the power receptacle on the laptop.
With the power connector firmly plugged in at the back of the laptop, if I move the connector slightly from side to side, there are some positions where the slightest movement disconnects and reconnects the external supply. This is quite serious because often you need to be sure that external power is connected. For example, at the moment I can't rely on the battery being charged up if I leave the machine unattended.
(I wonder why Lenovo left off the customary LED to indicate when AC power is connected? Without a lamp, it's quite difficult to trouble-shoot problems like this).
(Edit: Continued in new thread at http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/T540p-Intermittent-power-supply-connector/t...
T540p / 64-bit Win7 / 840 Pro SSD / Ultradock.

New battery/power supply problems

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