🚀 go-pugleaf

ereyes@openix.com (MannyR) wrote:

>I helped a friend install a CD-ROM and new hard drive to his 486 VESA 
>local bus computer. We had to take out the 5.25 floppy drive to have 
>space for the new hard drive. Installing the new peripherals was not a 
>problem. The problem was when we took out the 5.25 floppy drive, the 
>computer will not boot because the 3.5 floppy drive was the b: drive 
>originally. We changed the cmos settings and put on the power on 
>defaults. Then I tried to tinker with the jumpers in the 3.5 floppy 
>drive. I place the jumper to MD setting - figuring that that was Master 
>drive. When I powered on the computer, only the fan worked. I cannot 
>hear the cpu start or the booting. It seems that there is no power being 
>delivered to the motherboard.
>I appreciate any help.
>Thanks and regards.

>Manny
There's a little pulse called a "power good signal" that the mother
board returns to the power supply before it can deliver regulated
power to the board.

If you can't get the signal, you've done something wrong... Like
setting jumpers on a floppy drive to a conflicting setting and/or
connecting the data cable with pins 1,2 on the wrong end of the pin
bank.

Maybe you've connected the CD ROM backwards too. With some brands of
drives this guarantees a burnout. I'd say at this point you have no
alternative but to seek help from a technician or at least someone who
has more knowledge of computers than you do because any further
fiddling could trash you "mate's" computer.



Doug Smith B.SC.
Editor of Qld Computer Trade News