home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!unislc!larsen
- From: larsen@unislc.uucp (Steve Larsen)
- Subject: 486sx upgrade
- X-Newsreader: Tin 1.1 PL5
- Message-ID: <1992Aug26.220731.1313@unislc.uucp>
- Organization: Unisys Corporation SLC
- Date: Wed, 26 Aug 1992 22:07:31 GMT
- Lines: 49
-
- Hi all,
-
- I just upgraded my computer, and thought would post about the experience
- for all those interested. If you are one of those who thinks that the 486SX
- is lame, you might want to read this. I changed my mind enough to buy one.
-
- I had a 286-12 (!GASP!) on which I was trying (READ:not succeding) to
- productively run Windows (!Boy, this guy really is up in the night!)
- Well, needless to say, my WinBench results left more than a lot to be
- desired, so I decided an upgrade was in order. The biggest dilema I had
- was trying to decide whether or not to upgrade the motherboard, or just
- get a new computer. I wanted a new computer, but I would also like to get
- Local Bus, and since nobody can decide on a "standard" standard, I was
- a little hesitant to buy just yet. Well, I thought I would persue the
- motherboard upgrade just for the fun of it, so I called a local distributor
- and asked about it a little. I was VERY pleasantly surprised a what I
- found out that day. I was thinking about just upgrading to a 386-40
- motherboard temporarily until I was comfortable with getting a local bus
- machine, but the things I found out made me decide otherwise. The
- motherboard I finally got was a 486SX-25 with 128K of external cache. I
- got this for $239! (yes, that included the CPU). So I added 4M of RAM
- to bring the grand total to <$400. This in itself was pretty incredible to
- me, but a couple of things about the motherboard made it even better. This
- mother board has the extra pin in the CPU socket, so it is pin compatible
- with both the DX and the SX. Not only that, but the bus clock speed is
- hardware configurable between 25, 33, and 50 MHz. All that need be done
- is change some jumper switches. Well, I bought this and installed it in
- ~1 hours, and had not a single serious problem not related to my genetic
- stupidity. The speed increase was incredible. On almost every benchmark
- I can get my hands on, I see and 300-500% speed improvement. Dos based
- applications run lighting quick, but windows apps are still a little slow.
- (Not surprising since I am still using my old 8 bit VGA card). However,
- whereas it used to take about 40 seconds to load windows and get through
- my .ini file, it now does the same in about 10 seconds. The increase in
- RAM allows me to run a 2M smartdrive, which brings the effective disk
- throughput up to 4-8 Megs per second (however, I think the benchmark is not
- very selective about the way it select data from the disk, so this is probably
- out of proportion). Overall the system is much more productive (READ: FUN!),
- and I would highly recommend the upgrade for any 286 user, especially
- considering the seamless upgrade path all the way to Intel's proposed
- 100MHz DX2. Well if anyone has any questions, feel free to mail.
-
- Good day all,
-
- Steve
-
- BTW: This motherboard was designed for 50MHz operation, not juiced up to it.
-
-
-