Question about Fujitsu Computers & Internet
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best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
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Posted on Jan 02, 2017
SOURCE: Acer aspire laptop won't charge
First of all you have to determine whether it's the battery, charger or the laptop itself.
Remove the battery and boot the laptop on AC power only, if the laptop boots up you can rule out the charger and the laptop, you may need a new battery if that is the case.
Posted on Sep 08, 2009
Service guide states that it is searching for option ROMs, and that it is a checksum failure.
In order to understand what a checksum error is, it is important that you first learn what a checksum is. A checksum is a redundancy check during the startup process of a computer, which makes sure that a computer's data is intact. The data is scanned and tested for accuracy, either based on how well it relates to data elsewhere or based on previous data that was stored on the same computer. Essentially, all of the bits of data in a particular document or file are added up and a number or hash is created. This number or hash can then be compared to the number or hash generated from the same file on another person's computer or at a previous time on the same computer.
Although a checksum error can occur at any time while a computer is comparing data, it is most commonly present during a computer's startup procedure. During the startup processes of a computer, the BIOS settings, which are stored in a CMOS memory chip, are computed and then checked against the previous value. If the computed values do not match exactly, the computer warns the user with a checksum error message that the data may have been changed or corrupted between startup cycles. All BIOSes present a different error and therefore will either continue with booting or refuse to boot until the problem is corrected.
Depending on the type and the severity of the error generated, there may be one of a variety of ways to rectify the issue. The most common cause of a checksum error during the startup process is due to a faulty battery which is not providing sufficient power to the motherboard when the computer is off. However, motherboard malfunctions and viruses can also contribute to checksum errors.
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Below is the service manual...
Posted on Sep 27, 2009
I have an A-135-S5900. This could be one of two problems. Number one would be the power cord has gone bad and you need a replacement. Walmart sells the universal type that has several different fittings with it for different laqptops. Number two would be the power cord connection on the laptop has broken loose from the motherboard. When you plug the power cord into the laptop, does it wiggle and feel loose? If it does, this is probably the problem. This one is fixable but you have to know what you're doing. Hope this helps.
Posted on Oct 24, 2009
SOURCE: when my acer aspire 5734z
It is a sign that your battery is failing. Try to remove the battery then put it back. After that, try to check if you still experience the same thing. If so, then you need a new battery replacement.
Batteries usually start to degrade after a year or after 500 charges, whichever comes first.
Posted on Feb 11, 2011
The power supply adapter may not be delivering enough power when you run it and trying to charge the battery at the same time. The only way to find out is sub another power supply.
Posted on Jun 20, 2012
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