Reason why not to buy aftermarket power supply

There are a lot of cheap generic chargers out there that are missing important safety features. Here’s a link to a page where someone disassembled an imitation Dell charger, and it wasn’t pretty.

http://www.electricstuff.co.uk/acadapter.html

Comments Off

Laptop performance issue when on battery.

Games runs fine when charger is plugged in. Runs very slow when on battery.
Check your power setting. The power saving option can reduce your system’s performance when charger is not plugged in. You can change the performance option when you’re on battery by click on the battery icon in the bottom right of the screen. This will also shorten the battery life.

Comments Off

Protected: Toshiba Satellite A300

This content is password protected. To view it please enter your password below:

Comments Off

Acer 5920g common issues

Acer 5920g with blinking power adapter.
Check capacitors PC112 and PC118. They are located near the memory slot.

Delay boot, takes a few try before booting up normally.
Reseat fax modem or replace it if reseating doesn’t fix the problem.

Not charging a known good battery.
Check fuse near battery connector.

Battery charger PU1 datasheet
http://www.alldatasheet.com/datasheet-pdf/pdf/180746/INTERSIL/ISL6251A.html

Comments Off

Remove laptop CPU before measuring.

Make sure to remove CPU when testing components on laptop systemboard. CPU can cause false readings.

Leave a Comment

HP G7000 Won’t Power On

HP G7000 laptop that is totally dead. Pressing the power button gives nothing, connecting the AC adapter gives nothing. No lights or anything.

Troubleshooting:
Check AO4433 switching mosfets on power source side on mobo (just where power entering ).

You can easly use AO4407 as replacement as well.

You can use AO4433 or AO4407 instead of this.
Measure resistance between pin 4 and 1,2,3 / between 4 and 5,6,7,8 / between 1,2,3 and 5,6,7,8. You got datasheet so you can see how it is look inside. If there is no resistance that component is shorted. Otherwise there should be some resistance one way .

Leave a Comment

Protected: Dell BIOS Password Recovery

This content is password protected. To view it please enter your password below:

Comments Off

HP Battery Recall

HP Expands Recall of Notebook Computer Batteries Due to Fire Hazard
Consumers urged to recheck notebook models and batteries

Click here

Comments Off

Dell D630 won’t power on with damaged USB port

Dell D630 damaged USB port and no longer powers on. Light comes on the off. Pins on USB port touching the ground. Straigthen out all pins but still won’t power on. Found burnt/spark mark in area circled in picture. Cleaned with toothbrush and finally it’s powering up without problem.



Comments Off

How to remove GPU epoxy glue.

How to remove epoxy glue off GUP.

Comments Off