jmacz
Well-known member
the game is running great, no probs there..
just the oscillator, like with the old Macs, except there's no space to solder in a socket, and this is a SMD.
Will add this to my todo list at some point.
the game is running great, no probs there..
just the oscillator, like with the old Macs, except there's no space to solder in a socket, and this is a SMD.
I got that crystal from Bolle, so I dont know, I think its an obsolete Epson part. When I google '20 mhz sg-615p d152e', there come up some very similar ones:I'm gonna have to do this too! Very cool. What's the link to the crystal you bought? And how tough are they to solder in.
The mouser part is 449-LFSPXO018787REELWhich part there is the crystal?
Ah, it’s G700 in the top right hand corner.That’s good to know - I was wondering which part on the board physically that is.
Edit: it’s top right, isn’t it?
It’s certainly warm around the CPU after having it on for a bit - but that doesn’t really mean much without comparing to how it was before. I may run my 520c (@25MHz) alongside for a while and feel the temperature difference.Well I’ve gotta make a mouser order in a couple days, so I think I’m gonna get two of these and overclock my 540 and 540c!
How hot is it getting? That would be my only concern.
Go for it. Let us know how you get on.As long as it's stable... I think I'm gonna do it! Would certainly be a fun project.
Done it!
Seems stable so far.
The new crystal was almost too small for the pads, but I made it work.
This is a pretty tricked out 540c - max ram, bluescsi and 40mhz cpu.
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Yes, I did! It started life as a 4MB module.great, looks good, your crystal looks like newer part..and you alss have a BlueScsi in it..
did you solder your 32MB RAM yourself?
The new crystal was almost too small for the pads, but I made it work.
Go rummage, haha. I couldn’t find a better option - seems this is the standard footprint nowadays.Is there a slightly larger part on Mouser available?
Go rummage, haha. I couldn’t find a better option - seems this is the standard footprint nowadays.
I salvage them from dead PowerBooks, but I didn’t have a 20MHz part handy.You're right... don't see 4-SOJ package crystals on Mouser.