Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!mcnc!ecsgate!ecsvax!mvolo From: mvolo@uncecs.edu (Michael R. Volow) Newsgroups: comp.sys.ibm.pc.hardware Subject: Re: how to upgrade an old IBM pc? Summary: use a Bullet Motherboard Message-ID: <1991Jan20.042807.6641@uncecs.edu> Date: 20 Jan 91 04:28:07 GMT References: <2090@travis.csd.harris.com> Organization: UNC Educational Computing Service Lines: 17 If anyone wants to upgrade a 5-slot PC at least to a 286, one solution is the Bullet motherboard. It comes in 8, 10, 12, 16 (?) MHz models, can hold 1 Meg of RAM, of which the upper 384K is a dedicated cache. It is a composite motherboard with the fast processor, but with a slow 4.77 MHz 8-bit bus so 8-bit cards *and* PC-XT-only keyboards will work. We put one in a 5-slot IBM PC at work and it made life for the secretary much better. In the applications we were using, we didn't miss the faster throughput of a 16-bit buss. The motherboards come in 5-slot and 8-slot models and are a good way to go if you do not plan further upgrades. Prices $125-170. Check ads in Shopper: D.P. Computers, Leo, Marchand Int. You will probably need new memory if you pick one of the faster boards. -- Michael Volow, Psychiatry, Durham VA Med Center, Durham NC 27712 919 286 0411 Ext 6933 mvolo@ecsvax.edu