Question about Compaq Armada M700 Notebook
Advent 7016 (AKA Gericom Blockbuster 251S) main battery failed. Now only works on mains. A new battery won't take a charge or power the laptop. One school of thought is that the fault is a blown power controller chip on the motherboard. Another idea is that its a blown surface-mount fuse on the mobo. Yet another idea is that swapping the CMOS battery will fix it (but surely it wouldn't run on mains if the CMOS battery was flat).
Please help as I was pestered into getting this cheap laptop on eBay for a friend. Unfortunately this failure has now become a very embarrasing situation as PC Worlds repair fee is as much as a new laptop.
It was the BATTERY all along !!!!! Incidentally the new battery bought mail order from China was no good as it would not boot-up the laptop. The curious thing was that if the laptop was booted-up using mains power, the Chinese battery would then last long enough to play an entire feature film and more! The "Tech Guys" test battery was also no good and the technicians at that well known computer store claimed that the laptop was faulty, WRONG! Eventually I bought a scrap laptop of a similar type with a view to swapping the power controller board. The scrap laptop happened to have a battery fitted so the "scrap" battery was tried. Voila! all came good! After THREE dud batteries (including the test battery at the computer store) the problem was solved.
One can surmise that during the boot-up, computers take a heavy power draw. One can also surmise that the Lithium Ion batteries have current limiters built-in in order to prevent them from catching fire. If the current limiter is set too low the laptop will not boot. Those 2.8 GHz Pentium 4s were always renowned as hungry power-guzzlers and that was the problem.
The sad thing was that once it was all fixed-up, defragged and memory maxed-out, it got stolen in a burglary. Shame as it was a really good machine. These days I ONLY buy crappy low powered computers as why donate an i5 or i7 machine to your local drug addicts?
Posted on May 28, 2014
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Posted on Jan 02, 2017
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