Re: EPIA flash questions
On Thu, 26 Aug 2004, Joshua Wise wrote: > On board is a PLCC form factor 39SF020A. Mouser also carries the > 39SF040A, which is a 512k ROM. The pinouts seem to be the same, but I'm > not sure whether the extra address lines are carried out anywhere. Does > anyone know whether the EPIA will be able to use the extra 256k? I think it will, I've used that I'm pretty sure. > Also, I was not planning on getting a BIOS savior. Does anyone have > experience with hotswapping flashes on the EPIA? Will bad things happen > if I do? Do I need to make myself an external board with chip select > lines, or can I just hotswap? hot swap has always worked fine for me. ron ___ Linuxbios mailing list [EMAIL PROTECTED] http://www.clustermatic.org/mailman/listinfo/linuxbios
Re: EPIA flash questions
On Aug 26, 2004, at 2:42 PM, Joshua Wise wrote: Hi folks, Well, I finally got myself a Linuxbios supported board (an EPIA ME-6000). Later tonight I'm going to order a flash from Mouser to swap out, but before I do, I have a few questions: On board is a PLCC form factor 39SF020A. Mouser also carries the 39SF040A, which is a 512k ROM. The pinouts seem to be the same, but I'm not sure whether the extra address lines are carried out anywhere. Does anyone know whether the EPIA will be able to use the extra 256k? Don't know, but would like to know so please post your success/failure back to the list Also, I was not planning on getting a BIOS savior. Does anyone have experience with hotswapping flashes on the EPIA? Will bad things happen if I do? Do I need to make myself an external board with chip select lines, or can I just hotswap? I've hotswapped it with a little PLCC puller probably 50 something times, not a problem yet. -- Nathanael D. Noblet Gnat Solutions 412 - 135 Gorge Road E Victoria, BC V9A 1L1 T/F 250.385.4613 http://www.gnat.ca/ ___ Linuxbios mailing list [EMAIL PROTECTED] http://www.clustermatic.org/mailman/listinfo/linuxbios
Re: EPIA flash questions
- Original Message - From: "Joshua Wise" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, August 26, 2004 2:42 PM Subject: EPIA flash questions > Hi folks, > > Well, I finally got myself a Linuxbios supported board (an EPIA > ME-6000). Later tonight I'm going to order a flash from Mouser to swap > out, but before I do, I have a few questions: > > On board is a PLCC form factor 39SF020A. Mouser also carries the > 39SF040A, which is a 512k ROM. The pinouts seem to be the same, but I'm > not sure whether the extra address lines are carried out anywhere. Does > anyone know whether the EPIA will be able to use the extra 256k? > > Also, I was not planning on getting a BIOS savior. Does anyone have > experience with hotswapping flashes on the EPIA? Will bad things happen > if I do? Do I need to make myself an external board with chip select > lines, or can I just hotswap? I would not recommend hot swap. 20 times and then your contacts will fade or break( epia has very little space ). BIOS savior is much better solution if you plan to work with Linuxbios( I've burned mine 30+ times already with it... ). Dmitry/ ___ Linuxbios mailing list [EMAIL PROTECTED] http://www.clustermatic.org/mailman/listinfo/linuxbios
RE: EPIA flash questions
Do either of you happen to know if all the EPIA boards use the same PLCC Flash? -marc -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of ron minnich Sent: Thursday, August 26, 2004 5:50 PM To: Joshua Wise Cc: [EMAIL PROTECTED] Subject: Re: EPIA flash questions On Thu, 26 Aug 2004, Joshua Wise wrote: > On board is a PLCC form factor 39SF020A. Mouser also carries the > 39SF040A, which is a 512k ROM. The pinouts seem to be the same, but I'm > not sure whether the extra address lines are carried out anywhere. Does > anyone know whether the EPIA will be able to use the extra 256k? I think it will, I've used that I'm pretty sure. > Also, I was not planning on getting a BIOS savior. Does anyone have > experience with hotswapping flashes on the EPIA? Will bad things happen > if I do? Do I need to make myself an external board with chip select > lines, or can I just hotswap? hot swap has always worked fine for me. ron ___ Linuxbios mailing list [EMAIL PROTECTED] http://www.clustermatic.org/mailman/listinfo/linuxbios ___ Linuxbios mailing list [EMAIL PROTECTED] http://www.clustermatic.org/mailman/listinfo/linuxbios
RE: EPIA flash questions
On Thu, 26 Aug 2004, Marc Nicholas wrote: > Do either of you happen to know if all the EPIA boards use the same PLCC > Flash? "All"? wow. There are so many. Our EPIA and EPIA-M all use the same part. I would be surprised if they did much else, since the southbridge is commonly only one of two types. ron ___ Linuxbios mailing list [EMAIL PROTECTED] http://www.clustermatic.org/mailman/listinfo/linuxbios
RE: EPIA flash questions
Six boards are 'so many'? That's the entire EPIA range. ;-) -marc -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of ron minnich Sent: Thursday, August 26, 2004 11:29 PM To: Marc Nicholas Cc: 'Joshua Wise'; [EMAIL PROTECTED] Subject: RE: EPIA flash questions On Thu, 26 Aug 2004, Marc Nicholas wrote: > Do either of you happen to know if all the EPIA boards use the same PLCC > Flash? "All"? wow. There are so many. Our EPIA and EPIA-M all use the same part. I would be surprised if they did much else, since the southbridge is commonly only one of two types. ron ___ Linuxbios mailing list [EMAIL PROTECTED] http://www.clustermatic.org/mailman/listinfo/linuxbios ___ Linuxbios mailing list [EMAIL PROTECTED] http://www.clustermatic.org/mailman/listinfo/linuxbios
Re: EPIA flash questions
Dmitry Borisov <[EMAIL PROTECTED]> wrote: > > I would not recommend hot swap. 20 times and then your contacts will fade or > break( epia has very little space ). > BIOS savior is much better solution if you plan to work with Linuxbios( I've > burned mine 30+ times already with it... ). Does anyone have any schematics of a BUIS savior (to do it yourself). I'm interested in making these, and maybe even selling them to interested people, but before I start designing my own schematics, maybe someone has seen it somewhere. -- Miernik xmpp:[EMAIL PROTECTED] ___/__ tel: +427 __/ mailto:[EMAIL PROTECTED] http://www.miernik.ctnet.pl/ GPG:0xABC292D1 ___ Linuxbios mailing list [EMAIL PROTECTED] http://www.clustermatic.org/mailman/listinfo/linuxbios
Re: EPIA flash questions
At 12:02 29.08.2004 +, Miernik wrote: Hi Miernik! > I would not recommend hot swap. 20 times and then your contacts will fade or > break( epia has very little space ). > BIOS savior is much better solution if you plan to work with Linuxbios( I've > burned mine 30+ times already with it... ). Does anyone have any schematics of a BUIS savior (to do it yourself). I'm interested in making these, and maybe even selling them to interested people, but before I start designing my own schematics, maybe someone has seen it somewhere. Look at: http://www.clustermatic.org/pipermail/linuxbios/2003-September/005136.html It's a hack of a BIOS savior using one FlashROM, no PCB, just a switch and three wires. I don't know what the BIOS saviour is doing exactly, but generally you could wire two identical FlashROMs in parallel (except the /CE signal). Then you connect the /CE signal coming from the Mainboard to the switch. The other two pins of the switch are connected to the /CE signal of the two FlashROMs. That's all... Disadvantage: You'll need a 32pin PLCC-Plugin-Adapter (I don't know the right name)! Best regards, Sven ___ Linuxbios mailing list [EMAIL PROTECTED] http://www.clustermatic.org/mailman/listinfo/linuxbios
Re: EPIA flash questions
Does anyone have any schematics of a BUIS savior (to do it yourself). I'm interested in making these, and maybe even selling them to interested people, but before I start designing my own schematics, maybe someone has seen it somewhere. It's just a switch hooked up to the chip enable line of the ROMs. joshua ___ Linuxbios mailing list [EMAIL PROTECTED] http://www.clustermatic.org/mailman/listinfo/linuxbios
Re: EPIA flash questions
It's a hack of a BIOS savior using one FlashROM, no PCB, just a switch and three wires. I don't know what the BIOS saviour is doing exactly, but generally you could wire two identical FlashROMs in parallel (except the /CE signal). Heck, you could wire as many as you'd like in parallel, as long as the motherboard's fanout is great enough. The disadvantage to the hack using the 040 is that you only get 256k per side - with a /CE hack, it is theoretically possible to get 512k per side, given that you have a big enough flash chip. Also put a pull-up resistor on the /CE of both flash parts so that when the switch is not selecting one of them, the /CE line is not floating. joshua ___ Linuxbios mailing list [EMAIL PROTECTED] http://www.clustermatic.org/mailman/listinfo/linuxbios
