Date: Tue, 10 Jun 1997 07:29:39 +0200 From: Ollivier Robert <roberto@keltia.freenix.fr> To: current@FreeBSD.ORG Subject: Re: overclocking Message-ID: <19970610072939.55693@keltia.freenix.fr> In-Reply-To: <Pine.BSF.3.96.970609135800.14920A-100000@bsampley.vip.best.com>; from Burton Sampley on Mon, Jun 09, 1997 at 02:19:58PM -0700 References: <Pine.BSF.3.96.970609135800.14920A-100000@bsampley.vip.best.com>
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According to Burton Sampley:
> recently with the thread on the K6 making world in 1:21 hr. How do you do
> that? I have a P133 on an ASUS P/I P55T2P4 MB w/ 80 meg RAM and 2
Which revision of the P55T2P4 ? You'll need 3.0 or later in order to use 75
& 83 MHz. 75 MHz is documented in the manual but 83 MHz is not.
JP8 JP9 JP10 = 1-2 2-3 1-2 for 75 MHz
= 1-2 1-2 2-3 for 83 MHz
All [gory] details on <URL:http://sysdoc.pair.com/>.
> lethargic EIDE drives (both WD's 1.6 & 3.1). I have currently set the MB
> to the 2.0 & 66 MHz. I tried setting the jumpers for 2.5 and leaving the
> other at 66 MHz, but even BIOS wouldn't come up (I was staring at a blank
> screen).
Do you have a proper fan/heat sink ? That is _very_ important for
overclocking. Is your P133 recent or not ? Some recent versions of the
pentium refuse to run at a different clock multiplier and the only thing
you can do is to use a faster bus.
> Does anybody know the correct jumper settings (for J8 - J11) to boost my
> system up to 166 and 83 MHz? Is it worth the risk of send my CPU & MB
> into meltdown?
Like Satoshi said, buy a NCR SCSI card and some SCSI drive. That'll help a
lot too. With proper cooling you can do wonder with overclocking.
The dd test gave me 144 MB/s for a P166 (P133 running @ 2x 83 MHz).
--
Ollivier ROBERT -=- FreeBSD: There are no limits -=- roberto@keltia.freenix.fr
FreeBSD keltia.freenix.fr 3.0-CURRENT #18: Sun Jun 8 15:32:28 CEST 1997
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