Like the post title says, how would you go about removing this CPU from it's socket? Is there a special tool? I feel uneasy about using a PLCC removal tool because it would only lift two corners at a time, not all four.
Reason why I want to do this is so that I can wash the motherboard and I'd like to remove anything socketed before hand.
do not try to use a plcc tool. the pins are actually wrapped outward (as for surface mount) and you would ruin them. the socket should open... the top, right and bottom in your picture should pivot out or be pop-able up iirc.
Been decades since messing with one them socket types so could be wrong.
Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun
The clips that you need to press are the crescents on the corners at the top. You push them in toward center slightly and lift flange that surrounds the CPU those little tabs stay with the motherboard and the entire flange around the perimeter lifts off of the rest of it.
Here we go... Haynes 1991 80386 workshop manual... section, CPU... yada yada yada yada.. refer CPU repairs to dealer service department ... yada yada yada... ah here we go...
"Section 10-4 Removal of the CPU.
Removal is the reverse of insertion."
damn, so where was that...
"Section 9-1 Installation of CPU
Align arrow or dot of CPU with marking on socket for correct orientation then press firmly."
So there you have it, unpress and disalign the arrows, Haynes knows best.
Unicorn herding operations are proceeding, but all the totes of hens teeth and barrels of rocking horse poop give them plenty of hiding spots.
I have never seen a socket like this before. What processor is that? A 286? I tried Googling "FQFP Intel CPU" but didn't get any image hits that were similar.
Please share photos of the processor and socket, if you're able to remove it.
Kahenraz wrote on 2024-03-05, 06:55:What processor is that? A 286? I tried Googling "FQFP Intel CPU" but didn't get any image hits that were similar.
386 SX 16 ?
Kahenraz wrote on 2024-03-05, 06:55:I have never seen a socket like this before. What processor is that? A 286? I tried Googling "FQFP Intel CPU" but didn't get any image hits that were similar.
Please share photos of the processor and socket, if you're able to remove it.
It's probably under just QFP or maybe PLCC 386
But yeah, seen the CPU before and sockets similar but not quite like this... the ones I have dealt with are more like "insert toothpick into each corner and using all four of your hands gently pry it out." whereas this seems to have some locking or clamping that is a bit mysterious. It might be the mysterious QFP100 test socket that Anonymous Coward might know about.
Unicorn herding operations are proceeding, but all the totes of hens teeth and barrels of rocking horse poop give them plenty of hiding spots.
I've never heard of FQFP, but this looks like PQFP
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Yeah generally just called a QFP, cpu world has some pics and my AMD 386SX-40 is one....usually they are not socketed but soldered 😁
Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun
Does anyone have a photo of this socket in open position?
Ah, thanks. So its monolith socket... I thought, the side panels can be opened further...
Thanks everyone for your replies. Sorry for my delay. Yes, it is a 386SX, this model to be exact https://www.cpu-world.com/CPUs/80386/Intel-NG80386SX-16.html. The motherboard comes out of a Hewitt Rand brand computer.
I made a few more attempts to remove it using some advice above but it's just not budging. I don't feel comfortable applying that much force to this thing and it's just not worth it to me now to remove it.
The L shaped tabs get pushed inward while lifting the outer flange
You should be fine to wash it in the sink with it in the socket. Just be sure to rinse it really well. If you want to be extra careful, blow the socket dry with canned air, then fill it with rubbing alcohol and blow it again to make sure that it's dry. This is what I do around sensitive areas when I want to ensure that no water or soap is left behind.
You'll know that you've gotten all the soap out when no bubbles form from the compressed air spray.
Kahenraz wrote on 2024-03-07, 08:42:You should be fine to wash it in the sink with it in the socket. Just be sure to rinse it really well. If you want to be extra careful, blow the socket dry with canned air, then fill it with rubbing alcohol and blow it again to make sure that it's dry. This is what I do around sensitive areas when I want to ensure that no water or soap is left behind.
You'll know that you've gotten all the soap out when no bubbles form from the compressed air spray.
I do this for every board that comes through my shop. Wash with mild soap and water. Rinse with 99% alcohol. Compressed air.
Never had a problem.
