Difference between revisions of "FAQ"

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The PLAICE will make use of an adapter cable that will interface to the mainboard via the FLASH BIOS socket or onto the pins of a soldered in place FLASH device. It may also be used to program a FLASH device or emulate a FLASH device in circuit. Since the PLAICE attaches directly to the in-circuit FLASH device, the FLASH may be programmed without the need to reverse engineer any FLASH WRITE/ENABLE "security through obscurity" protection schemes incorporated into a mainboard.
The PLAICE will make use of an adapter cable that will interface to the mainboard via the FLASH BIOS socket or onto the pins of a soldered in place FLASH device. It may also be used to program a FLASH device or emulate a FLASH device in circuit. Since the PLAICE attaches directly to the in-circuit FLASH device, the FLASH may be programmed without the need to reverse engineer any FLASH WRITE/ENABLE "security through obscurity" protection schemes incorporated into a mainboard.


==== external EPROM/Flash programmer that can program the flash on your motherboard ====
==== External EPROM/Flash programmer that can program the flash on your motherboard ====




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==== Bios Savior ====
==== Bios Savior ====


[[Image:Bios savior.jpg|thumb|right|Photo of an installed BIOS saviour.]]
[[Image:Bios savior.jpg|thumb|right|An installed BIOS saviour.]]


A tool that plugs into and replaces the original mainboard Flash device. The BIOS Savior has its own Flash device and a socket for the original mainboard Flash device. The Bios Savior features a switch to allow the developer to choose between which Flash device is accessed by the mainboard during read and write cycles.
A tool that plugs into and replaces the original mainboard Flash device. The BIOS Savior has its own Flash device and a socket for the original mainboard Flash device. The Bios Savior features a switch to allow the developer to choose between which Flash device is accessed by the mainboard during read and write cycles.
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* http://www.cwlinux.com/eng/products/products_lbmb.php
* http://www.cwlinux.com/eng/products/products_lbmb.php


A similar function is achieved by the "'''top hat flash'''" which comes at no extra cost with many Elitegroup mainboards like KN3 with MCP55 southbridge. After bootup, it can manually be lifted off the original BIOS chip socket, so the original BIOS can be reflashed after a failure. /rst is wired to /oe on the spare chip otherwise 1:1 [[Image:Top_hat_flash.JPG |thumb|right|top hat flash, pcb side to flip over soldered-on plcc]]
==== Top Hat Flash ====
 
A similar function is achieved by the "'''top hat flash'''" which comes at no extra cost with many Elitegroup mainboards like KN3 with MCP55 southbridge. After bootup, it can manually be lifted off the original BIOS chip socket, so the original BIOS can be reflashed after a failure. /rst is wired to /oe on the spare chip otherwise 1:1.
 
[[Image:Top_hat_flash.JPG|thumb|right|Top Hat Flash, PCB side to flip over soldered-on PLCC.]]


==== Chip removal tools ====
==== Chip removal tools ====

Revision as of 21:33, 8 May 2007