This page provides information about modifying the motherboard in your Quadra, Performa, or LC 630 series computer. Such modifications are not authorized by Apple. Any modifications you perform on your Mac may damage it. Modifications are done at your own risk.
Whether marked Quadra 630, LC 630, or Performa 63x, this model has 4 MB of RAM soldered to the motherboard and a single 72-pin SIMM socket for memory expansion up to 36 MB. (The DOS Compatible version and some 630s have a different motherboard with two SIMM slots and are covered on a separate page.)
2009 – Others have published their thoughts on the Best Mac Ever, the 10 Best Macs, and the 25 Best Macs, but I’m taking a different approach. I want to identify the 25 most important Macs ever, clones included. (In some cases, I’ll lump together two or more models that were introduced simultaneously.)
2000 – I’d like to get on the Internet with my Macintosh Performa 636. Is that possible? Can I buy a modem for it, or would it be useless? What kind of modem? What do I need to get online?
1999 – ABV writes: Please give pros and cons for the upgrading my current Performa 630 CD. I have System 7.5, 8 MB of RAM plus RAM Doubler, the TV and video tuner, a 250 MB internal hard drive, a 500 MB external drive, and an HP DeskWriter 550C. I’m trying to upgrade the system to […]
1998 – ABV writes: Which version of the Mac OS would you recommend running on the following Quadra 630? The system has 20 MB of RAM, a 250 MB hard drive, an external Chinon 2x CD-ROM drive, 14″ Apple Trinitron Monitor, 33.6 kbps Supra Faxmodem, and a StyleWriter II inkjet printer. I want a version […]
1998 – DB writes: Wow, and I thought I was running a low-end Apple orchard . . . have an Apple IIe, Classic II, LC, and IIcx. My boss wants me to buy his 630CD . . . admittedly, it’s more machine than I have now, but it doesn’t seem like a wise move . […]
This relatively rare variant of the LC 630 includes a DOS card with an Intel 486DX2/66 CPU, although some shipped with a Cyrix 486/70. The DOS Compatibility card can share Mac motherboard memory or use its own dedicated RAM.