Date: Fri, 12 Jan 2001 15:39:27 -0800 From: Bernhard Beck <bbeck@mindmaker.com> To: "Thomas T. Veldhouse" <veldy@veldy.net> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: Athlon Thunderbird 700 w. Asus K7M Motherboard vs. FreeBSD 4.2 Message-ID: <3A5F95AF.F8B120D4@mindmaker.com> References: <3A5F1F43.EE70CB3C@inode.at> <20010112161044.A97484@walton.maths.tcd.ie> <009e01c07cb7$132d9e30$3028680a@tgt.com> <3A5F3951.9932EED5@mindmaker.com> <00d101c07cbe$4f1f84b0$3028680a@tgt.com>
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According to an article published in c't 14/2000, page 32 (online at http://www.heise.de/ct/00/14/032/default.shtml, use Altavista's Babelfish to translate), Slot A Thunderbirds do exist. In a nutshell among other things AMD slightly changed the bus interface design on the Thunderbirds so that you need chipsets like VIA KT133, KM133 or AMD 760. But under certain conditions the Thunderbird can also work with a KX133 or the Irongate chipset. There is a nice table at the end of the article listing a few Slot A motherboards and if they worked or not with the two sample Slot A Thunderbirds c't had available in their lab at that time. Michael's Asus K7M with Irongate chipset is listed as working with the exact same BIOS version. However, your milage may vary depending on your CPU. The T-Bird was not designed to be used in Slot A with any motherboard. AMD apparently made them only as a concession to their OEMs. What confuses me, though, is why the CPU works with normal speed in Windows 2000. Michael, maybe try booting with a SMP kernel (?) Bernhard "Thomas T. Veldhouse" wrote: > > I have done alot of looking for one myself - and I have always come back to > the conclusion that the cheap internet vendors were just flashing keywords - > and when you pressed them on it - you wouldn't get an answer - just an > updated web page with Thunderbird removed. I have yet to find an actual > Slot A thunderbird. There is an actual architectural difference that won't > allow it to run with the current Slot A chipsets. L2 cache related I > believe. I am willing to bet good money that Mr. Bretterklieber does NOT > have a Thunderbird - but instead a regular Slot A 700 MHz Athlon. > > Tom Veldhouse > veldy@veldy.net > > ----- Original Message ----- > From: "Bernhard Beck" <bbeck@mindmaker.com> > To: "Thomas T. Veldhouse" <veldy@veldy.net> > Cc: "Michael Bretterklieber" <mbretter@inode.at>; <stable@FreeBSD.ORG> > Sent: Friday, January 12, 2001 11:05 AM > Subject: Re: Athlon Thunderbird 700 w. Asus K7M Motherboard vs. FreeBSD 4.2 > > > AMD made a few Slot A Thunderbirds. As far as I know they were meant for > > the OEM market (so that the system integrator has to make sure it works > > with their environment), but some CPU's made it into retail. There were > > various incompatibilities with the existing Slot A motherboards. The CPU > > may work in one Slot A motherboard, but not in others. > > c't (a german computer magazine) published an article about this last > > year. > > > > Bernhard > > > > "Thomas T. Veldhouse" wrote: > > > > > > I wasn't aware that they made any Slot A Thuderbird processors. I > believe a > > > Thunderbird will only run with the KT133 chipset (or better) or the > AMD-760 > > > chipset and not the AMD-750/751 chipset. Are you sure that CPU is what > you > > > think it is? > > > > > > Tom Veldhouse > > > veldy@veldy.net > > > > > > ----- Original Message ----- > > > From: "David Malone" <dwmalone@maths.tcd.ie> > > > To: "Michael Bretterklieber" <mbretter@inode.at> > > > Cc: <stable@FreeBSD.org> > > > Sent: Friday, January 12, 2001 10:10 AM > > > Subject: Re: Athlon Thunderbird 700 w. Asus K7M Motherboard vs. FreeBSD > 4.2 > > > > > > > On Fri, Jan 12, 2001 at 04:14:11PM +0100, Michael Bretterklieber > wrote: > > > > > > > > > I have problems with my Athlon Thunderbird 700 on an Asus K7M > > > > > Motherboard > > > > > (Bios 1009) and FreeBSD 4.2. > > > > > The system is very very slow, like on an old 386. I have this > problems > > > > > since I updatet from an Athlon 500 to this Athlon Thunderbird 700. > I > > > > > have on the same Harddisk Win98 and Win2K and they work without > > > > > problems, fast and stable. > > > > > This situation is disastrous for me, because I had to work under > > > > > FreeBSD, so I hope, that somebody can help. > > > > > > > > I wonder if it could be a problem with the BIOS not setting up the > > > > MTRR registers correctly. I have seen problems (on SMP machines) > > > > where the BIOS was not setting up the MTRR registers on some of > > > > the CPUs weren't caching any of memory. FreeBSD has a work around > > > > for this in the SMP case, but maybe not in the single processor > > > > case. > > > > > > > > I'd try looking for a BIOS upgrade, as it may be a problem with > > > > the old BIOS not initialising the new processor. > > > > > > > > David. > > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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