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Posted: Tue Nov 12, 2002 11:35 am
by NickS
If you're going to do it, definitely change the jumper. Note: I'm not an EEPROM specialist and Rainbow has said that for some devices the programming voltage needs to be present on boot - maybe this is just when updating ESCD, I don't know. So I would change the jumper to 5v with the power off but if your friend's machine then fails to boot, change it back to 12v and set it to 5v once you've removed his BIOS ROM.
Posted: Tue Nov 12, 2002 11:46 am
by Rainbow
It will boot when set to 5V.
Posted: Tue Nov 12, 2002 11:50 am
by NickS
Thanks, Rainbow. Did I misunderstand a previous post ?
Posted: Tue Nov 12, 2002 12:14 pm
by yhnl4
ok, the chip is freaken hard to remove cause i don't have a rom remover. Is there any tools or trick i can use to remove it?
Posted: Tue Nov 12, 2002 12:33 pm
by NickS
This is a DIP ?
I use a flat bladed screwdriver and work it in carefully keeping the chip (and the screwdriver blade) as flat as possible. For your friend's machine, take the chip out with the power off and leave it slightly pressed into the contacts so that you can remove it easily once it's booted.
If they are PLCC, I use a special tool with a little foot on the end which you slip down one corner of the chip and hook the chip up from underneath, alternate corners a bit at a time.
Posted: Tue Nov 12, 2002 12:48 pm
by yhnl4
thanks heaps nick
Posted: Tue Nov 12, 2002 2:53 pm
by Rainbow
A metal cover from empty slot can be useful too.
Posted: Sun Nov 17, 2002 1:43 pm
by yhnl4
the hot-swap was a complete success!! I'd like to thank Nick & Rainbow for the answers and advices that you guys have provided. You guys have saved me alot of money so... THANKS!!!
