04-03-2009 09:07 AM
today I changed the M/B of my A31p with one bought from ebay. My old computer had the security chip, so I put it on the new M/B. When switching the laptop on I received "four cycles of 4 short beeps and a blanc screen" as described in IBM's manual (p. 54). In the same point it says that it is due to "System board (IBM security chip)".I removed the chip but again I have the same message and the laptop does not boot. Is there any solution to this?
George from Greece
04-03-2009 08:39 PM
Security chip is "married" to the motherboard it originally shipped with. Trying to swap them between different planars will usually yield the result that you've encountered.
04-03-2009 11:21 PM
it means that any motherboard sold without the original security chip is useless and the seller must know that. This M/N is the type 26P8430 and according to IBM HMM comes with the chip. I bought it although in the ebay auction the picture showed that the chip was missing, but I did not know where to search for it. This was my first disassembly of an A31p, although I have made many upgrades of desktops...We always are learning. I have asked from the seller for a free replacement but I am not sure for the result.