Article View: comp.os.os2.setup.misc
Article #158Re: 10ns and 60-70ns SIMMS at the speed of 100Mhz in a Pentium 100?
From: Deutscher
Date: Tue, 23 Apr 1996 00:00
Date: Tue, 23 Apr 1996 00:00
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3642 bytes
Yves Boisjoly (boisjol@ibm.net) wrote:
: In <4l9eei$gil@news.aros.net>, John Brush@aros.net writes:
: >
: >I don't know who wrote this statement, and it really doesn't matter. However,
: >I am getting way sick of people who do not know have a clue
: >making assumptions and giving the impression that they know what
: >they are talking about.
: >
: >Anyone who tells you that you can't mix speeds (meaning a 60ns in place of
: >a 70ns) is a bigger liar than the person who fits the above scenario. If your
: >motherboard and bios supports 70ns RAM, you can put 10ns Ram in those
: >slots and the system won't give a rat's ass! If you put a SLOWER device in,
: >then you have a potential problem.
: >
: >Now for the corny line. I design embedded controllers and computer systems
: >and I know what I am talking about. Challenge me, flame me, I don't care.
: >I do know what I a talking about in this area. Can't we all just get along?
: >
: >Thank you.
: >
: >Regards,
: >
: >John
: Hi John,
: I am so happy. May be you can respond this old old old question that I have in my
: mind since about 5 years...
: If we take a Pentium 100Mhz, and try to found it speed in nano seconds, am I right
: if a use this formula:
: frequency =1 / period
: so,
: period = 1 / frequency
: means
: period = 1 / 100 Mhz (100 000 000 hertz)
: equal
: 0.000 000 010 seconds
: means
: 10 nano seconds !!!
: Since we know that a Pentium 100Mhz actualy reach that speed internally, and
: in my case, on my mother board, the clock of the PCI and data bus is actualy
: running at the speed of 66Mhz, how can a Pentium 100 Mhz (66Mhz external) can
: access those 60-70 nano seconds chips, at 0 WAIT STATE ! ! ? ? ! !
How about
~>bc -l
1.0/66000000
.00000001515151515151
makes about 15 ns which is about what cache RAM has? Just an idea. Stefan
: [=======================================
: [ Yves Boisjoly
: [ OS/2 Team.
: [ E-Mail: boisjol@ibm.net
: [ Phone: (514) 522-5079
: [=======================================
--
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Stefan A. Deutscher, sad@utk.edu, (001)-423-[522-7845|974-7838|574-5897]
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10ee4f,d82d6820978e5010 X-Google-Attributes: gid10ee4f,public X-Google-Thread: 10cd94,d82d6820978e5010 X-Google-Attributes: gid10cd94,public X-Google-Thread: f4337,d82d6820978e5010 X-Google-Attributes: gidf4337,public X-Google-Thread: 10c4f5,d82d6820978e5010 X-Google-Attributes: gid10c4f5,public From: sad@utkux.utcc.utk.edu (Deutscher) Subject: Re: 10ns and 60-70ns SIMMS at the speed of 100Mhz in a Pentium 100? Date: 1996/04/23 Message-ID: <4lhf1n$4c3@gaia.ns.utk.edu> X-Deja-AN: 150898734 references: <4kecjv$fsl@geraldo.cc.utexas.edu> <4khecg$3g8e@news-s01.ny.us.ibm.net> <4kk4tf$ksq@news.aros.net> <4kq5f0$ehl@usenet6.interramp.com> <4l82km$4ah@cabell.vcu.edu> <4l9eei$gil@news.aros.net> <4lh2u1$10rg@news-s01.ny.us.ibm.net> followup-to: comp.os.os2.setup.misc,comp.os.os2.bugs,bit.listserv.os2-l,alt.org.team-os2 organization: University of Tennessee, Knoxville newsgroups: comp.os.os2.setup.misc,comp.os.os2.bugs,bit.listserv.os2-l,alt.org.team-os2