From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thorsten Kranzkowski Subject: Re: XLT366 Memory Compatiblity... Date: Tue, 8 Jun 2004 19:32:37 +0000 Sender: linux-alpha-owner@vger.kernel.org Message-ID: <20040608193237.A31694@Marvin.DL8BCU.ampr.org> References: <20040608125250.GD20632@lug-owl.de> <20040608175612.B31492@Marvin.DL8BCU.ampr.org> <20040608180335.GJ20632@lug-owl.de> Reply-To: dl8bcu@dl8bcu.de Mime-Version: 1.0 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20040608180335.GJ20632@lug-owl.de>; from jbglaw@lug-owl.de on Tue, Jun 08, 2004 at 08:03:35PM +0200 List-Id: Content-Type: text/plain; charset="iso-8859-1" To: linux-alpha@vger.kernel.org, Ryan Kirkpatrick Cc: Jan-Benedict Glaw On Tue, Jun 08, 2004 at 08:03:35PM +0200, Jan-Benedict Glaw wrote: > On Tue, 2004-06-08 17:56:12 +0000, Thorsten Kranzkowski > wrote in message <20040608175612.B31492@Marvin.DL8BCU.ampr.org>: > > On Tue, Jun 08, 2004 at 02:52:50PM +0200, Jan-Benedict Glaw wrote: > > > On Tue, 2004-06-08 05:46:54 -0600, Ryan Kirkpatrick > > > wrote in message : > > > > utilized they work fine. When fully utilized, they just don't w= ork. > > >=20 > > > As I said, parity !=3D ECC. > >=20 > > well he said 36 chips which equals 4 bit ECC per 32 bit word. >=20 > Or one bit per byte... *digging up some RAM* Ah, these do have 10 or = 20 > chips, so that's 2 bits per byte (which I expected). Quoting from my DS20 manual (DP264 actually): "The 72-bit, 100 MHz DIMMs consist of 64 Bits of data and 8 bits of ECC= , ..." These are 200 pin sticks which are definitely not found in PC World :) I assume Ryans memory is bog-standard 72Pin-PS/2 (currently googling to= =20 find a proof) and also with that it's definitely 4bits/32bit. Quoting from ref_memory.txt that describes my noname-board: Table 3-1 Possible Memory Capacities Organization SIMM Bank BCR BCR BMR size size ---------------------------------------------------------------- 1 Mbit x 36 4 Mbyte 8 Mbyte 0 0011b 0070.0000 2 Mbit x 36 8 Mbyte 16 Mbyte 1 0011b 00F0.0000 [...] Unfortunately most useful Alpha docs seem to be gone by today - the=20 closest I could find is:=20 http://hvdkooij.xs4all.nl/docs/RedHatLinuxAlpha/machinexlt.html=20 which also suggests 36 Bit RAM. Now I'm curious what kind of RAM-Sticks _you_ found in your black-box? are all (10,20) chips of the same size and type? Any stickers that suggest a clue? > Melle? Not all that far away:) I'm from H=F6rste (near Halle/Westf.). Ein freundliches Hallo nach Nordrhein Westfahlen! ;-) =20 > MfG, JBG Bis denn, Thorsten --=20 | Thorsten Kranzkowski Internet: dl8bcu@dl8bcu.de = | | Mobile: ++49 170 1876134 Snail: Kiebitzstr. 14, 49324 Melle, Ge= rmany | | Ampr: dl8bcu@db0lj.#rpl.deu.eu, dl8bcu@marvin.dl8bcu.ampr.org [44.130= =2E8.19] | - To unsubscribe from this list: send the line "unsubscribe linux-alpha" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html