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 – I just read your advice about upgrading or replacing an older Mac, and my Performa 636CD works pretty well for my purposes (except no RealAudio). I had a logic board swap done about 1-1/2 years ago so I could add a 486 card for Windows 95 (it’s easier for me to adapt to […]
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 . […]
The Quadra 630 was the last Mac designed around the 68040 processor. It was designed to replace the Quadra 610. LC and Performa versions of the 630 use the less expensive 68LC040, which lacks an FPU, while the Quadra 630 sports a full 68040. The slide-out motherboard makes upgrades very easy.