From owner-freebsd-hardware Sat Dec 20 17:31:58 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id RAA28237 for hardware-outgoing; Sat, 20 Dec 1997 17:31:58 -0800 (PST) (envelope-from owner-freebsd-hardware) Received: from frmug.org (frmug-gw.frmug.org [193.56.58.252]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id RAA28216 for ; Sat, 20 Dec 1997 17:31:49 -0800 (PST) (envelope-from roberto@keltia.freenix.fr) Received: (from uucp@localhost) by frmug.org (8.8.8/frmug-2.2/nospam) with UUCP id CAA07623 for hardware@FreeBSD.ORG; Sun, 21 Dec 1997 02:31:34 +0100 (CET) (envelope-from roberto@keltia.freenix.fr) Received: (from roberto@localhost) by keltia.freenix.fr (8.8.8/keltia-2.13/nospam) id CAA02653; Sun, 21 Dec 1997 02:09:19 +0100 (CET) (envelope-from roberto) Message-ID: <19971221020918.41035@keltia.freenix.fr> Date: Sun, 21 Dec 1997 02:09:18 +0100 From: Ollivier Robert To: hardware@FreeBSD.ORG Subject: Re: NCR810 (or 875) & Asus P55T2P4 & Overclocking ? References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.88 In-Reply-To: ; from Burton Sampley on Sat, Dec 20, 1997 at 01:02:16PM -0800 X-Operating-System: FreeBSD 3.0-CURRENT ctm#3883 AMD-K6 MMX @ 208 MHz Sender: owner-freebsd-hardware@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk According to Burton Sampley: > Has anyone successfully overclocked the above hardware (the MB is rev 3.1 > BIOS rev 203)? I'm currently running a P5-233MMX at 266 (3.5X, 75MHz) with Yes. > an older Adaptec 2940 (BIOS rev 1.16, I think). When I try cranking it up > to the 83MHz bus speed (3.0X, 83MHz ~= 250) the SCSI devices wont fly (but > my EIDE drives will). This is on FBSD 2.2-stable. Funny you're asking, I happen to have: - an ASUS T2P4 rev. 3.1 - two ASUS SCSI cards, one SC-200 (narrow) and one SC-875 (ultra-wide) - one K6-166 I'm running all these (with the addition of a Matrox Millenium) at 2.5x 83 MHz = 208 MHz which all cards seem to support very well. > (providing the rest of my hardware can support the higher bus speed). Is > the Adaptec really worth the extra $$$? Compared to an SC-875, I don't think so. YMMV. Copyright (c) 1992-1997 FreeBSD Inc. Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. FreeBSD 3.0-CURRENT #19: Tue Dec 9 20:17:10 CET 1997 root@keltia.freenix.fr:/src/src/sys/compile/TNKELTIA CPU: AMD-K6tm w/ multimedia extensions (208.82-MHz 586-class CPU) Origin = "AuthenticAMD" Id = 0x561 Stepping=1 Features=0x8001bf real memory = 67108864 (65536K bytes) avail memory = 63193088 (61712K bytes) Probing for devices on PCI bus 0: chip0: rev 0x03 on pci0.0.0 chip1: rev 0x01 on pci0.7.0 vga0: rev 0x01 int a irq 15 on pci0.9.0 ncr0: rev 0x03 int a irq 9 on pci0.11.0 scbus0 at ncr0 bus 0 sd0 at scbus0 target 0 lun 0 sd0: type 0 fixed SCSI 2 sd0: Direct-Access sd0: WIDE SCSI (16 bit) enabled sd0: 40.0 MB/s (50 ns, offset 15) 4134MB (8467200 512 byte sectors) sd2 at scbus0 target 2 lun 0 sd2: type 0 fixed SCSI 2 sd2: Direct-Access sd2: 20.0 MB/s (50 ns, offset 15) 2063MB (4226725 512 byte sectors) st1 at scbus0 target 4 lun 0 st1: type 1 removable SCSI 2 st1: Sequential-Access density code 0x0, drive empty ncr1: rev 0x12 int a irq 11 on pci0.12.0 scbus1 at ncr1 bus 0 sd11 at scbus1 target 1 lun 0 sd11: type 0 fixed SCSI 2 sd11: Direct-Access sd11: 10.0 MB/s (100 ns, offset 8) 642MB (1316751 512 byte sectors) sd12 at scbus1 target 2 lun 0 sd12: type 0 fixed SCSI 2 sd12: Direct-Access sd12: 10.0 MB/s (100 ns, offset 8) 1030MB (2110812 512 byte sectors) st0 at scbus1 target 5 lun 0 st0: type 1 removable SCSI 2 st0: Sequential-Access st0: 5.0 MB/s (200 ns, offset 8) density code 0x13, drive empty cd0 at scbus1 target 6 lun 0 cd0: type 5 removable SCSI 2 cd0: CD-ROM cd0: 1.9 MB/s (525 ns, offset 8) can't get the size -- Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- roberto@keltia.freenix.fr FreeBSD keltia.freenix.fr 3.0-CURRENT #19: Tue Dec 9 20:17:10 CET 1997