Chip Identification

Posted by: Waragainstsleep

Chip Identification - 11/19/05 10:44 PM

Hey guys, I'm trying to ID some logic in a circuit. There are three chips I need to ID.

The first has 3 pins, and has "12W" and "54" written on it. The "54" is written 90 degrees anti-clockwise after the "12W".

The second has 3 pins and says "340 J" on it.

The last has 8 pins and says "MXAE" written on it, with "T01C" written underneath that.

Not much to go on, I know, but any suggestions are welcome.
Posted by: TCPMeta

Re:Chip Identification - 11/19/05 11:02 PM

Pictures would help.
Posted by: maestro

Re:Chip Identification - 11/20/05 03:55 AM

What board are these on? Hes right a picture or two would help.
-maestro
Posted by: Waragainstsleep

Re:Chip Identification - 11/20/05 07:18 AM

I need to take some better ones really. But here is what I have at the moment. I'm afraid you can barely see the chips in question. The biggest (8 pin) is just right of the middle. The two others are on the right-hand edge of the pic.



Post edited by: waragainstsleep, at: 2005/11/20 15:20
Posted by: anil8tor

Re:Chip Identification - 11/20/05 08:47 AM

What are we looking at here? PLC? :unsure:

Can you tell us the type of board, maker ect...?

Post edited by: anil8tor, at: 2005/11/20 17:13
Posted by: maestro

Re:Chip Identification - 11/20/05 10:01 AM

Is that a cube? We need info on what we are looking at.
-maestro
Posted by: macDeviant

Re:Chip Identification - 11/20/05 01:14 PM

deffinately not a cube...
Posted by: TCPMeta

Re:Chip Identification - 11/20/05 08:15 PM

All I see are diods and a small IC chip.
Posted by: Waragainstsleep

Re:Chip Identification - 11/21/05 07:02 AM

Its an Apple board, from an ATA Xserve/RAID drive module.

Diodes you reckon? I figured they were something simple. I was thinking transistors, but diodes sounds more sensible to me. They should be easy enough to replace shouldn't they?
Posted by: Waragainstsleep

Re:Chip Identification - 11/22/05 08:16 AM

There are some better pictures here.

It tunrs out the logic in the handle end is more complex. This looks like a dead end I'm afraid to say.....

Post edited by: waragainstsleep, at: 2005/11/22 16:18