Soldering a socket on your board: Difference between revisions

Revision as of 16:35, 26 March 2009

Mainboards where the BIOS chip is soldered onto the board (and not in a socket) are usually problematic for coreboot developers and especially users, as one incorrectly flashed image will render the board unusable.

Requirements

A board with soldered-on (PLCC) chip
Soldering iron
A PLCC socket (SMD type)
Desoldering station or heat gun
Tweezers
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Preparation

Take a picture of the board and ROM chip. You might need that later in order to add the socket in the correct orientation.

Desolder or cut away the ROM chip

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Clean the pads on the board

Prepare the PLCC socket

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Solder the socket onto the board

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Resources

HOWO: replace a PLCC chip with a socket "ghetto style" (Tutorial for doing this without desoldering station by cutting the chip)

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@@ Line 13: / Line 13: @@
 File:Plcc socket.jpg|...
 File:Desoldering station.jpg|...
+File:Soldering iron.jpg|...
 File:Desoldering wick.jpg|...
+File:Tweezers.jpg|...
 </gallery>
@@ Line 23: / Line 25: @@
 <gallery>
-File:Pads after desoldering.jpg
+File:Soldered plcc rom chip.jpg|...
+File:Pads after desoldering.jpg|...
 </gallery>
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 * [http://ward.vandewege.net/blog/2009/03/howto-replace-a-plcc-chip-with-a-socket-ghetto-style/ HOWO: replace a PLCC chip with a socket "ghetto style"] (Tutorial for doing this without desoldering station by cutting the chip)
 {{PD-self}}