Finding a 486 CPU cooler is probably going to be easier than finding a 33MHz 040, my recent eBay searches only turned up a small number of 33MHz 040s and the cheapest one was 66 dollars.
On Monday, August 15, 2016 at 6:19:40 PM UTC-4, Gregg Eshelman wrote: > > Coolers for 80486 CPUs can be made to work on a 68040. Of course the > problem is finding one after all these years. > > ------------------------------ > *From:* coverturtle <[email protected] <javascript:>> > *To:* [email protected] <javascript:> > *Sent:* Monday, August 15, 2016 8:35 AM > *Subject:* Re: New to 68k Macs, have some important questions > > If you choose to do this, make sure you have a good heat sink with a fan > for 68040. They can get hot. In the lab we ran some which were rated at > 50MHz and they were hot enough to burn. > > On 08/14/2016 10:51 PM, V. Sigma wrote: > > Hi, I just recently purchased my first Mac, a Performa 630CD (AKA Quadra > 630) for the princely sum of 53 dollars. I've done a fair bit of research > into vintage Macs before I bought one but there's still some questions I > haven't found answers to. > > 1. I haven't opened my Performa up yet, but chances are it still has the > original 68LC040 and I didn't get lucky by buying one with a proper 040 > upgrade. I've found decently priced 040 chips on eBay but they're all 25MHz > chips, which would be slower than the 33MHz LC that's (probably) already in > there. Would a 25MHz 040 installed in a motherboard with a 33MHz clock > crystal run at 33MHz or is 25MHz the maximum speed it's capable of? > > 2. I've heard the SCSI controller in the 630 is absolutely abominable due > to being slow and outdated. Can it be replaced with a more modern > controller from another Macintosh? > > I appreciate hearing from some people with more Mac experience than I have. > > > -- -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To leave this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
