Acer Aspire 725 :: Screen Flickering - Stops When Remove Power Supply

Jan 20, 2015

I have screen flickering problem with my Acer Aspire 725 with windows 8 OS. Flickering stops when i remove the power supply. I could see the battery plugged and unplugged symbol in Windows 8 continuously. Whether i should replace my battery or power supply adaptor?

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Dell Inspiron 5521 :: Laptop Stops Charging When Remove Power Cable And Again Plug It

Jan 14, 2015

I bought this inspiron 15r 5521. Its approx 2 year old. There was warning in battery status in the PC checkup. Few days afterwards the laptop did not start up. I searched and did a hard reset..BUT when i shut it down or hibernate . again its like dead and i have to plug in the power cord for 20 min and do a hard reset to turn it on . It also happens that if i shut down while the power cord is plugged and i take it out and again plug it , it stops charging..(again need a hard reset).

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Acer Aspire 7740-6656 :: Shows No Signs Of Life Except For Green Light On Power Supply Cord

Oct 8, 2014

I have an Acer Aspire 7740-6656 that shows no signs of life. I have tried removing and replacing the battery as well as trying different locations to plug into power. I have even tried removing battery and power supply and holding start buttom 30 seconds. Except for a green light on the power supply cord, still no signs of life. What if any are my options?

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Acer Aspire E1-470 :: Screen Keeps On Flickering

Oct 24, 2014

Im running windows 8.1 64 bit Acer Aspire E1-470, I notice my screen keeps on flickering, its like a heartbeat impulse, it dims and gets back light again its not severe but it annoys me alot!

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HP/Compaq :: 2200- Blue Screen When I Disconnect Power Supply

Feb 11, 2009

I have a Compaq Presario 2200. Half the time I disconnect the power cable, I get a Blue screen with the message "IRQ_NOT_LESS_OR_EQUAL".

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Acer Aspire V5-552 :: Screen Keeps Flickering And Making Waves And Stuff?

Sep 2, 2014

The problem is, that my Aspire's screen keeps flickering and making weird waves and stuff. It basically makes text unreadable, and I almost can't see anything. To turn it somewhat normal, I turn down the light, but it's not working much. The text sometimes turns into different colors, Blue, green and red.

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Acer Aspire V5-431P :: After Clean Install Laptop Screen Is Buzzy And Flickering

Feb 11, 2015

This afternoon I decided to do a clean install of windows 8.1 on my Acer Aspire v5-431P. Everything went well and it booted up as it should do. After completing the windows setup procedure, I went on to reinstall all the drivers. Everything was still fine. When I was downloading them from the Acer website I heard the sound a windows computer makes when a device is plugged in or out. The screen went off and on and the image was blurry and flickering. Like it's covered in water. I also see everything double. But very vague. 
 
I tried to reboot the laptop, took out the battery, plugged it in and out of the power source etc. The problem occurs after the windows login screen. The acer bios logo and the windows startup logo are perfectly fine but after that it's cr*p. At this point I was certain the screen itself was perfectly fine so I tried testing is on my tv using and HDMI cable. Worked perfectly. 
 
The last thing I tried was reinstalling windows but the same happened. After 5 minutes of usage the screen goes ham again. 

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Acer Aspire V3-772G :: Touchpad Stops Responding To Any Gestures Or Mouse Cursor Keeps Shaking On Screen

Sep 17, 2014

I've been having problems with this device since the day I bought it. The second day I owned it a bad pixel jumped onto the screen. After pushing it for some time physically on the surface of the screen it dissapears for another day or two.

But my biggest problem is taht sometimes touchpad simply stops responding to any gestures or mouse cursor keeps shaking on my screen. The only ting I can do is turn off the whole touchpad and wait for it to repair itself.

Also it happens that for no apparent reason my notebook behaves like as if I had been pressing CRTL button all the time, while I dont do it at all. Pressing S key alone makes it run into save options. Left clicking on the page makes it open in a new bookmark.

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Lenovo 11e E/Edge :: E440 Screen Flickering When Plugging In / Out AC Power

Jul 5, 2014

My Lenovo E440 screen flickers when I plug or unplug the AC power charger. I think this happened after I installed all the drivers. This doesn't occuer when the windows was still 'fresh-installed'.
 
I read on other thread that this also happened on other machines and I think the cause is the same, the refresh rate change from 60Hz to 50Hz when I plug the AC power and then it goes back to 60Hz when I unplug the AC power. So I plug the AC power then change both refresh rate to 60Hz. It went fine when I unplug the charger, but when I plug the charger again the refresh rate for while plugged in change to 50Hz again no matter how I try (so it flickers again when I plug the charger again).

Also, I am using Windows 8.1 Enterprise Evaluation and I've installed the latest Windows Updates, Lenovo System Updates, and Nvidia driver update.
 
My question is:
1. Is this software error or what? If it is software error then shouldn't this occur on all user?
2. What is the difference between the display refresh rate? Which one should I use (I though higher refresh rate is better)? Why does the refresh rate change when I plug/unplug the charger? If I remember correctly AC power source is 50Hz, does it related to this problem?

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Dell :: Is There A Power Supply Gremlin?

Apr 26, 2009

Ive seen 2 fairly new Dell laptops recently (a Latitude D520 and an Inspiron E1705) with the same symptoms. With a known good adapter attached to the unit, they do not charge at all,

but they run off the battery until the battery dies. I disassembled both and checked the connection between the power jack and the mobo and found them to be solid.

I connected a power source directly to the + solder point on the mobo and a ground and found they did not power up at all. If this were a desktop, I would change the power supply immediately, but being a laptop, Im not sure what (if anything) can be done to fix the problem. Any ideas or suggestions would be very much appreciated.

What I've done:
1. Both units work normally with charged batteries, so I know I'm working with good laptops.
2. Removed, cleaned contacts and re-inserted RAM.
3. Cleaned accumulation from the internal lint trap, i.e., from the CPU cooling fins.
4. Removed, cleaned, re-applied thermal paste and reseated CPU'

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Dell :: Universal Power Supply

Sep 27, 2009

So i have a new e6400 moved from an e4200. Figured I could use the nice dell travel adapter I had with my 4200. Once i plugged it into my new beast i got a not enough wattage message from DCP.

Which is fine, I now realize that my nice slim power adapter is very much under powered for this laptop.

I went out and got a Cooler Master SNA 95 it is a 95 watt adaptor and acutally is really small and light. Got it home and plugged it in and I got this message .....

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Dell :: E6400 Connected To Power Supply

Nov 24, 2009

I have a question regarding the battery life of my E6400..

Does connecting the machine to the power supply when the battery
is fully charged reduce the battery life?..

BTW: what is the best way to work with the machine when it is 99% of the times connected to the power supply..

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Dell :: M4400 Spare Power Supply

Aug 18, 2009

I'm shopping for a spare power supply for my M4400 that need to be able to do full GPU/CPU load for 8 hour a day will the the90W do it or I need to go 130W.

I still have not used the battery so I could deactivate battery charging on the spare PSU

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Dell :: Power Supply Model # Matter Much?

May 1, 2010

needed a new charger, dell listed 5 options for my service tag #. So I called them and the guy in india said said the NF599 was the one I need if I wanted the 6' cord.

Put NF599 into amazon and ordered one, received a UU572. Specs all appear to be the same, this one doesnt say 90w anywhere on it but the specs online all say 90w. Its also a 3 prong and not a 2 prong like the NF599, that may actually be nice so it doesnt fall out of the socket so easily.

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Sony :: Power Supply Covered Under Warranty

Dec 21, 2009

My Sony Laptop Power Supply stopped functioning last night. Is this covered under warranty? My laptop is about 8 months old.

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Sony :: VAIO Hibernates On Power Supply

Jul 17, 2009

I have a VAIO VGN SZ230P. It has always worked fine. Recently, it has begun to hibernate after about 5 minutes when plugged into its power supply. When on battery, it operates normally. I have tried two different power supplies, same problem. All sleep, hibernation and power setting are off, yet it still happens. All virus and malware scans come up clean.

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HP/Compaq :: Hp8510p Dock Power Supply

May 12, 2010

Is the standard power supply unit compatible with hp docking station? I've seen a lot of cheap used docking stations on ebay - unfortunately many of them are sold withou power supply unit.

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HP G62 OS/Software :: Not Turning On Even When Connect To AC Power Supply?

Apr 21, 2014

I use lap top G62. Untill yesterday its working fine. But due to my stupidity for cleaning the fan i opened it and cleaned it and fixed all the parts accordingly. Now the lap top is not turning on, i dono what the problem is but the power button is not showing the glow of LED nor the fan is working. The battery is working fine (i checked on others lappi) and even when i connect to an AC power supply the LED shows charging sign.

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Acer :: Aspire Screen Blank On AC Power Use

Jul 27, 2009

I have an Aspire 5610 with 2G ram running vista home premium. I had a few explorer windows open, and was getting memory warnings. I shut a few windows down, and a few hours later, the screen turned blank. I reboot the computer, but the problem persists. Now it turns out if I remove the power supply, and run it on battery, everything is fine. As soon as I instert the power supply chord, screen goes blank (black). Upon removing the power supply, if I shut and open the screen, it works again (and it also shows me a warning message that the wireless is in use, and if I really want to turn the antenna off).

The screen obviously is fine, as it runs fine on battery. I don't understand what is happening as soon as I insert the power supply, and why upon removing the power supply, I get a warning on turning off the antenna.

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Acer Aspire One 725 :: Screen Flickers With AC Power

Jan 22, 2015

I have screen flickering problem with my Acer Aspire 725 with windows 8 OS.

Flickering stops when i remove the power supply. I could see the battery plugged and unplugged symbol in Windows 8 continuously. Whether i should replace my battery or power supply adaptor?

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Dell :: 1730 Faulty Battery/mb/or Power Supply?

Mar 6, 2009

I have a problem with my XPS 1730 laptop, this started probably 4 months ago. (second laptop that has screwed up after the warranty ended). I'm hopeless at explaining stuff, so i'll do it in point forms.

* First sign of trouble started when i booted up my comp one day and it beeped before loading windows and paused saying something like

"AC power adaptor not recognised, press F1 to continue F2 to enter setup, system will run slower"

If i continued then it did run really slow (even though power option was set on high performance) and the battery didnt charge.

* Every time i turned on my computer i had to keep putting the power cable in and out, adjusting it as i did so, until the battery light on the top right (near the lcd screen) flashed. If that didnt flash and i turned it on then the unknown power adaptor message would come up.

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Sony :: Vaio Does Not Turn On Without Battery, Bad Power Supply

May 4, 2010

I have a 12'' sony vaio with a 16V power adapter. My battery is not good anymore, it was not even holding for 20Min, but my problem now is that the computer does not turn on without the battery at all. I have to leave it charging for hours, then it will go on, but in the middle of the windows loading process it shuts down and does not show any signs of life until you leave it charging for another hour.The voltage output out of the power supply shows 14.70 ~ 15.20 never gets to 16V. Now, comes the questions...

This particular laptop needs a good battery to " buffer" power and the AC adapter only charges the battery but does not have enough Amps to run the computer without the battery?

or

Do i have a Bad power adapter that is not even charging the battery properly?

or

Bad power supply and battery?

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Sony :: Kensington Universal Power Supply & VGN-SR Series

Feb 16, 2009

Anyone use one of Kensington's universal power supplies with their VGN-SR? Trying to figure out which "smart tip" to use.

Their compatibility wizard on the Kensington website doesn't list the VGN-SR290; only lists a Vaio SR series. I think this may be referring to an older series and not the VGN-SR line. The tip the wizard recommends for this 'Vaio SR series" is N15, which, according to the power supply instrcution manual has output volatge of 15-17V. Another tip, tip N27, has output volatge of 17-20V. The power brick that came with my SR290 indicates a 19.5V output (Sony VGP-AC19V25 - 19.5V, 4.7a)

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Acer :: Flickering Screen In 5920Z Laptop

Jan 12, 2009

I have an ACER Aspire 5920Z laptop and the screen just starts Flickering in between .......Can something be done about it? well just gathered out a couple of info ..is it related to the 8ms response time the laptop has..?The refresh rate doesnt change on LCD screens so that option doesnt work either (fixed at 60)

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Acer Aspire 5536 :: Black Screen - Led And Fan Comes On When Power Up

Jan 23, 2015

Purchased in 2009 with free upgrade to Win 8.1 Pro. Has been a great computer up to now. On power up, LED's and fan come on but screen is black. Can not see anything behind screen when shining a torch on it. Has worked twice since fault appeared, once on re-boot and once when pressing DEL key. Replaced battery on motherboard and tried combinations of the two RAM boards. Still not working. Have recovery disks, but they are for the old Vista software.

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Dell :: Proper Part Number For 130 Or 150 Watt Power Supply

Nov 3, 2007

I've recently upgraded to a Quadro 2500m in my 9400. Sometimes after playing games for awhile it will freeze up for a second and then get really slow (sometimes staircase like lines will appear on the monitor). I doubt the 2500m is broken since it came in a sealed Dell box and my temps aren't too high, so I'm suspecting that the 130W adapter that I got off of eBay is not really up to it. I noticed that sometimes when it boots up it cannot recognize the adapter (Press F1 to continue, F2 for setup etc...) but other times it recognizes it as the 130W adapter fine.

I also noticed that that PA-13 that I have was made in 2004...isn't that way before any of the Inspiron 9400s came out?

So I'm wondering if anyone knows where to get a reputable 130/150W adapter and/or what the part numbers are that people have been using successfully.

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Dell Inspiron 15 :: Will Not Boot Up - Power Supply Light Blinks On And Off

Feb 5, 2013

My Dell Inspiron 15 will not boot up. Started randomly shutting down over a week period. Would also display a plaid screen which would require a hard shut down by me.  I was trying to run Dell diagnostics on it and noted that the video card failed, but it could not complete the diagnostic without shutting down.  Now the power supply light blinks on and off in a 10 second interval.  It acts like it has no power, but I know the battery was charged. 

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Lenovo P/Y/Z Series :: IdeaPad Y510P Will Not Recognize AC Power Supply

Jun 15, 2014

I have just received this laptop. I followed the instructions out of the box, installing the battery, then connecting the power. The battery started charging that first time, but after that, any time I tried reconnecting the A/C power supply, the laptop would not recognize the adapter and I am not able to charge my battery. 
 
I have tried the following steps:
 
1. Shutting down the computer, removing the battery, and starting the computer from the A/C power supply. The computer will not recognize the A/C power supply to turn on the computer.
 
2. Updating all the power management drivers. Everything was already installed properly.
 
3. Using the Lenovo Energy Management battery gauge. I must have the A/C power supply plugged in to use it, but the computer still won't recognize it.
 
4. Held down the power button for 30-40 seconds then reset the BIOS to default settings. No change
 
5. Tested my outlets and connections between my AC adapter cords. Everything is working properly.
 
There is one way that I can get the computer to recognize the AC adapter, and that involves all of these steps shown below, but when I unplug the AC adapter I am right back to the beginning, and I have to redo the whole process. I have just received this laptop and I am quite sure that you shouldn't have to go through this process every time you want to recharge the battery, or use your computer while only powered by the AC adapter.
 
Steps I have to take to recharge my battery:
 
A.  Disconnect the A/C power supply.
B.  Shut down the computer.
C.  Remove the battery
D.  Connect the A/C power supply
E.  Start the computer.
F.  Uninstall all battery drivers that are labeled Microsoft ACPI Compliant Control Method Battery (which come back every time).
G. Shut the computer down.
H. Disconnect the A/C power supply.
I. Insert the battery.
J. Insert the A/C power supply.
K. Start the computer.
 
That is the ONLY way I have gotten my computer to recognize the A/C power supply. I know the power supply is functional, but why I have to go through all of those steps for the laptop to recognize it.

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Acer Aspire V5-552p-7412 :: Will Not Power Up At All - Blue Screen Comes On

Sep 2, 2014

I have had this problem a few times now since I have had it. This laptop is rarely used, so not sure what could be the problem. This last time, I had inadvertently removed the power block from the wall to plug something else in.

Since then it will not power up at all. The blue light comes on but nothing else. I don't hear the drive spinning or anything and screen just stays black. I held power button down for 60 seconds and finally saw normal booting screen and then went back to black screen.

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Acer Aspire 5542 :: Black Screen - Power LED Button Is On

Nov 9, 2014

I have an ACER Aspire 5542g and i've had a problem with it lately, when I turn it on, the fan starts running, the harddrive turns on, and the CD drive starts up, the power button LED is on, but all that shows up is a black screen. I have tried the "Take out the charger and battery, hold the power button for 30 seconds", tried switching the RAM, tried taking out the harddrive, and all have been a fail. And I am honestly confused, because some of the time (rarely) it will turn on, and literally everything about the laptop is perfectly fine, and its like nothing happened. Until you turn it off. 

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