Post your Mac 68K Speedup tips here:
3) Get a slotless cache card for your Quadra CPU, or if you can't get the slotless cache card, get a PDS cache card, but that may prevent you from using other PDS Cards.
What are slotless cache cards? Can they get you money from broken banking machines?
Actually, it's a serious question - never heard of these, and I've been fiddling with Quadras and such for years. What have I missed? I am intrigued.
A slotless cache card fits in between the 68040 socket and the 68040 Chip. You'll end up with a processor that looks a like the G3 with some chips sticking out the side of the heatsink. Adds 128K of 68040 L2 cache (an 040 feature that is officially unimplemented. Thanks, Apple.). It's very rare. I think Sonnet, MicroMac, or Daystar made them once.
For a 25Mhz Quadra, a
QuadDoubler (which replaces the 68040 CPU is better) since it replaces the CPU with a 50Mhz 040 and adds a 128K cache. They don't work in 33Mhz Quadras (maybe someone was able to hack them to work?)
Another intriguing slotless device was the
Allegro 030 which replaces a socketed 16Mhz CPU with a 33Mhz 030. It was sold for use with IIx, IIcx, and SE/30. It won't work in an LCII, or LCIII, because these use a different form factor 030. Also very rare.
About the fast hard drive item: Has anyone tried running a 68K Mac off a flash drive? There were
SCSI Memory Card readers, and
an internal one here, with the low prices of flash drives (2GB CF at $20) these look like viable, fast alternatives to SCSI hard drives.
Here's another manufacturer of solid state drives and CF adaptors.