Date: Wed, 30 Jul 1997 13:54:00 -0700 (MST) From: Terry Lambert <terry@lambert.org> To: brianc@milkyway.com (Brian Campbell) Cc: hackers@FreeBSD.ORG Subject: Re: Pentium II? Message-ID: <199707302054.NAA05832@phaeton.artisoft.com> In-Reply-To: <19970730144420.16698@milkyway.com> from "Brian Campbell" at Jul 30, 97 02:44:20 pm
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> > Actually, these are the same people who said I could get a > > 486 DX/2-100, and thus convinced me to buy my 486 DX-50. > > Can't now, or couldn't ever? It was announced, in almost the same format as this 266 announcement that was referenced. Do not believe announcements; believe only shrink-wrapped packages which you can touch. > I used to have a DX4, and did manage to get it to boot at 2*50, but my > graphics and scsi cards didn't like that much. I know at least one > other person that claims to keep his DX4 running at 2*50. One wonders how he managed to change his clock multiplier on board the chip from the mask-programmed value of "3"... 8-). For video, he should run an S3 chipset board, which is more tolerant of bus overclocking than the nasty Mach-32/64 chipsets; the only boards in my bus-overclocked EISA machine are an S3 graphics board and an AHA1742B. > > My 486 DX-50 still beats the snot of of a P5 DX/2-66, and is > > more than fast enough (EISA bus overclocked to 50MHz) to handle > > a lot of stuff that early P5 machines couldn't. > > Hmmm ... Never heard of a P5 DX/2-66 ;-) Dell was selling them. This was back when they were using the Saturn I chipset, which did not have DMA writeback notification connected from the macrocell (missing trace). Clock-doubled 66 MHz Pentiums were at one time common, before CPU fans became common. Dell also had 60MHz non-doubled chips available before the doubled 66's were available. The non-doubled 60's kicked butt over the doubled 66's for anything I/O bound. Just as my 486/50 kicks butt over the same chips. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.
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