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Thread ID: 9174	2001-05-11 10:09:00	no response at boot up	Guest (0)	Press F1

Post ID	Timestamp	Content	User
12466	2001-05-11 10:09:00	My Mum's old 486 won't start when I push the on button, (she just uses it for games for the grandchildren)I can hear the hard disc start up and the fan start, but the usual buzz saw sound from the floppy dosen't happen and the beep from the system check is a non event. Before boot up I measured the cmos voltage at 4.1v the rating is 3.7v so it is fully charged. If I turn it on and leave it for an hour or so then come back and turn it off, then on again, it will boot up normally. Any suggestions????	Guest (0)
12467	2001-05-12 03:56:00	/me hears the death bells ringing. Sorry to say, it sounds like it's on its why out. I have just had a friend bring me 486 of his doing the samething, after some poking and pondering and card replacing, and putting the old stuff back in, It died totally... so i ripped out all the old stuff and put in an old P133 cpu and motherboard into and sent him on his way.	Guest (0)
12468	2001-05-12 22:52:00	Thanks Andrew, I had a feeling that was the case. I was thinking about doing the same, (putting in a second hand upgrade) and also a modem (new) to connect her to the net, Please can you advise of a good place to buy 2nd hand parts? You can e-mail me at BRYANTRCJD@xtra.co.nz	Guest (0)
12469	2001-05-15 13:41:00	Some possibilities are: a. The room temperture is outside the operating limits of the CPU or a chip on the motherboard.(Things can get more temperature sensitive with age). b. The power supply output is low. Try checking the output voltages when you first try to start it, and compare them with readings taken when the computer will start. The black wires are earth, the red +5vdc, and the yellow +12vdc. (I can't remember the rest off the top of my head).	Guest (0)
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