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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!clarkson!news
- From: faruque@sun.soe.clarkson.edu (Abdullah Faruque,334CH,3752,2654247)
- Subject: Re: Performance boost or woe ? (ABOUT BUS CLOCK SPEED)
- Message-ID: <1993Jan8.212022.14789@news.clarkson.edu>
- Sender: news@news.clarkson.edu
- Nntp-Posting-Host: sun.soe.clarkson.edu
- Organization: Clarkson University
- References: <1993Jan8.182606.21215@murdoch.acc.Virginia.EDU>
- Date: Fri, 8 Jan 1993 21:20:22 GMT
- Lines: 32
-
- From article <1993Jan8.182606.21215@murdoch.acc.Virginia.EDU>, by hh7r@galen.med.Virginia.EDU (Hsiang-Hsin Hsiung):
-
- ..Lots of test results deleted
- >
- > I understand there are potential problems associated with the
- > improvements on system performance. But, what are these problems? Does
- > anybody have experiments against the "significant" performance boost?
- > Thanks.
-
- Yes, the increase in the bus speed will increase the performance of
- disk I/0, video etc. But for a truoble free operation at any speed
- higher than 8Mhz (which is the standard ISA bus speed), you must also
- need good quality hd/fd, video and other add on cards. All of your
- cards should be rated and tested at the specified speed. Most cards
- normally rated for 8mhz, but there are cards out there which are rated
- at higher speed. Now, if you run a card beyond its rated capacity,
- then it may or may not run. But most of the time most newer cards will
- run at 10Mhz without any problems. The 12.5Mhz is little optimistic,
- but if you are able to run at that speed then test throughly with
- intensive disk I/O operations under different OS. I found that, 12.5
- Mhz works fine as long as you are within native DOS, but it makes
- troubles under Windows (normally the system hangup during disk I/O
- operation). It also creats problems under OS/2 at 12.5Mhz. If you are
- running X under Linux then you have to set the bus speed very close to
- 8Mhz (I was completely unable to run X under linux at 10 or 12.5Mhz)
-
- So, the bus speed of 10Mhz is probably the best choice for DOS, Windows
- etc. If you want 12.5Mhz then, test throughly before settle down.
-
- -Faruque
- faruque@sun.soe.clarkson.edu
-
-