boot lock pad identfication

sravinu · Posted: Sun Sep 22, 2002 1:49 pm Post subject: boot lock pad identfication

can someone help me identify the boot lock pad/ s which i need to short.

this is a compaq presario notebook 1690,

i flashed the wrong bios, so nothing shows up now, no video no floppy ...

i have the pictures of the motherboard

www.eden.rutgers.edu/~sravinu/bios/bios_atmel.jpg

and www.eden.rutgers.edu/~sravinu/bios/mb_back_full.JPG

there are some other images

at www.eden.rutgers.edu/~sravinu/bios

thanks

Joe · Posted: Sat Oct 12, 2002 6:39 pm Post subject:

Try peeling away the "Compaq partnumber" stickers in the RAM area, look for Jumpers:

PAD501 & PAD502

Joe

Hardware Junkie · Posted: Sat Oct 12, 2002 7:41 pm Post subject:

http://www.compaq.com/athome/support/msgs/1683-1694/index.html

This is the most the compaq technicians will know about your particular laptop. Perhaps an ASC may know how to fix this problem, but they probably end up just replacing the mobo.
_________________
"Imagination is the only weapon in the war against reality." -Jules de Gautier

Joe · Posted: Mon Oct 14, 2002 3:24 pm Post subject:

Just an update, also, take a look on the top of the PCB, it may have an area for a PLCC type ROM, I just got done working with a dead BIOS on a 1600

The PCB came orgininally with a TSOP on the bottom of the board, the bootblock was useless, removed the TSOP ROM, installed a 2mbit 5v PLCC on the top and it works,

If you can get someone to sell you and program a 32 pin PLCC ROM you can use that.

Joe

sravinu · Posted: Sun Oct 27, 2002 11:29 pm Post subject: thanks joe

hello joe,

thanks for your reply, can i get the chip from you, i am in NJ
i saw that the motherboard has a slot of this rom on top of it

Joe · Posted: Mon Oct 28, 2002 12:30 am Post subject:

www.badflash.com offers PLCC bios replacement chips.

Order (if possible) a winbond 2mbit 5v chip you may need to send them the bios image.

joe

sravinu · Posted: Tue Oct 29, 2002 2:44 am Post subject: thanks joe

when my computer was working i made a backup of the working bios and boot block using uniflash, is it good enough for a bios image to send to badflash.com.

or would you know any location from where i can get the bios for a compaq 1690.

Joe · Posted: Wed Oct 30, 2002 1:23 am Post subject:

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