You likely won't break anything - just needs to be unplugged from the socket it's in - sometimes you just need to take your time levering it back and forth with a plastic tool, or your fingers.
...in which Macintosh LC is a CPU installed that you can pull out of the socket ???
I don't need a guide to destroying my mac
I'm just looking for someone who knows this part
I think you got your answer. It's going to be nearly impossible to tell without removing the board. There are a lot of obscure 3rd party accelerators out there. You might get lucky and find someone who has the same board and would recognize the underside of the board without any markings, but you have a decent shot of identifying it if you remove the board, which is pretty easy and low risk.I don't need a guide to destroying my mac
y'all were right (i was just too careful) with a little more force the circuit board came out
. Not much I see in a quick Google.
From the images you've provided - it's confirmed my hypothesis - it's a clock doubler. The 89.92MHz oscillator is divided by 2 to give you 44.96MHz - the PAL's are there to decouple the onboard clock from the 68040 clock, letting the CPU run asynchronous to the bus, thus eliminating any issues with the serial or video.y'all were right (i was just too careful) with a little more force the circuit board came out
Done already... The original is an 8 layer board, I imagine it's no fun at all routing the whole address and data busses through that narrow area on the board between host socket and CPU.
yes - the CPU floats above the fanSo it’s a “Formac PL150-21”! …anybody know anything about it?
It does look somewhat similar to Sonnet QuadDoubler, there‘s a nice low profile heat sink on the CPU, and a 89.9 clock crystal. Maybe it runs the CPU at half that, ~45Mhz? The CPU/heat sink being right over the fan to keep it cool?
