Recent content by cofford

Hello all, I have a 24A card and I can't get my IIfx system to boot into 7.6.1 (hangs just prior to extensions loading). It works perfectly in 7.0.1, so I'm not sure what the problem is. Is anyone else running the BUG cards in 7.6.1?

RaSCSI drive and Dayna SCSI/Link. Works great! This is connected to my IIfx file server over Localtalk (printer port) and my 68k Netatalk share on my WD NAS at the same time with no issues. Netscape 3.04 works too (just barely). Using a RasPi 2.

I've had this Classic since my mom bought it in 1990. I recapped the logic and analog boards and found it to be as limiting as I remember. So, when an opportunity to grab a Classic II board came up I jumped at it. Recapped that board yesterday and she's looking good. Still running the OS off...

I think (and I could very well be wrong) that network traffic with both hosts on the same switch doesn't go beyond said switch.  In that case, telnet is acceptable.  I've got all the Macs and the Linux box on the same switch, so traffic doesn't make it past the switch unless it is broadcast.  I...

I run Linux (Ubuntu 20.04, Raspberry Pi OS) on pretty much everything I can.  I set up one machine with a telnet server that is only visible to my internal network (in my case it’s a Core2 iMac, running Linux).  Then, I can use a telnet client on my 68k Macs to telnet in, then SSH anywhere from...

So, back to the 4.8...  I have a single 256k 100ns VRAM SIMM (670-0269).  I tried pairing that with a 512k SIMM I had lying around just to see if it would work (it doesn’t, as expected).  Can I pair the 100ns SIMM with a 256K 80ns SIMM, or does it need to be a matching pair?

This was my dream computer when I was a kid, though I never thought I’d actually own one.  It’s still a beast!

Outstanding! I had read somewhere that the 4•8 cards took special 64-pin SIMMs but a quick look confirms the slots are 68-pin.  Thank you! I would appreciate some photos of your 8•24 GC SIMMs.  I can confirm that the regular IIfx RAM does not fit.  I'm not sure what advantage filling those...

Hello, I've recently acquired a Macintosh Display Card 4•8 as a companion for the 8•24GC in my IIfx.  Are the 64-pin 256k VRAM SIMMs for this card available anywhere, or are they basically unobtainium at this point? Thanks, Casey

I finally got around to fixing this.  Found that I had put a 1 uf cap in the CF1 spot.  Swapped in a 47 uf and things are PERFECT.  Woohoo!

Thanks, I'll give it a good once-over.

So I checked the voltages again, and after recapping my 5V and 12V lines were low.  Adjusted them properly and the screen wiggle is gone.  Unfortunately, the "folded over" section of the screen is still there, and I haven't found any troubleshooting guide that mentions a problem like this.  Are...

Yes.  5 and 12v look good.  Adjusting vert and horizontal works as it should but doesn't get rid of the folded-over menu area...Reducing the overall vertical area does eventually get rid of it, but only when the area of the screen which is upside-down in the pic above is not used.

Greetings fellow 68kMLAers!  I have a Mac Classic that has had a bit of a screen wiggle during network activity and other power draws, so I went through the analog board and replaced (almost) all of the caps.  I've previously replaced the logic board caps as well.  Well...after doing that, the...