Is there a slightly older smaller version of the ROMs that you could flash into place. I have a nearly identical card with the same boot problem, but I have no patience. The difference is that the chip is double the capacity that you have. Here's what's written:
(ST logo) M28F512 -15C1 V58AA9622A HONG KONG I have no use for this card anymore and would be willing to get rid of it dirt cheap. (hell, I only paid $10 for it) On Tuesday, August 13, 2002, at 11:02 PM, Bolton Peck wrote: > > > Jeff Walther wrote: > >> At 18:26 -0700 08/13/2002, Bolton Peck wrote: >> >>> Here's all the numbers from the flash ROM, or at least I think >>> that's what it is. >>> I have a socket that would fit it (it is, of course, soldered SMT to >>> the board) so >>> could theoretically change it. >>> >>> M28F256 >>> -15C1 >>> V58MA9722A >>> HONG KONG >>> >>> I presume this means its a 256K rom? And would that be bits or bytes? >> >> Bits. Memory chips' capacities are specified in bits. I'm not sure >> which manufacturer M indicates. I think Macronix is MX. Maybe M is >> Mitsubishi. Oh, I bet it's ST Micro. The 28 is usually for an >> EEPROM, though sometimes it's Flash. 29 is used for Flash memory as >> well as 49. 27 for EPROMs (often have a little window in teh top >> for UV erasing). ROMs seem to use X3 where I've seen X as 5 or 2. >> The F usually goes with 5V parts. The 256 means 256 Kbits. So >> about 32 KB. You'd have to get a data sheet to figure whether its >> X8 or X16 (inputs and outputs 8 or 16 bits at a time) though you can >> often tell by the number of pins. >> >>> Thats all the info I have on hand, unfortunately Matrox isn't exactly >>> going to >>> tell you how to get out of paying twice as much for what is >>> essentially an >>> identical card with a nickel more ROM chip on it. >> >> On Ebay under Business and Industrial/Electronic Components/ICs you >> can often find Flash and EEPROM chips at pretty good prices. I've >> been checking every so often and stocking sizes that might be handy. >> I'm still waiting for a nice deal on 8 Mb 3.3V Flash in a 44 pin >> SOIC... >> >> Anyway, if the only difference is the capacity of the Flash, you may >> just be able to get the M or AT or MX or AM28F512 in the same package >> and install it and then flash it. However, switching manufacturer >> may mean that you've switched some of the finer details of the >> internal workigns of the chip, so it may not work. >> >> Jeff Walther > > Well, it sounds like I could replace the chip. It is an ST Micro chip, > but this > card isn't that nice. It would take me hours to unsolder it and stick > the new one > on. I don't own any SMT solder equijpment either. SO I think I'll > just trade it > back in to where I bought it, towards something more useful. Otherwise > I'd have > to go out, find the chip, have it soldered on-I'd rather do this > experiment on a > card with some modern 3D acceleration. > > Wwuld the 'tome viewer' program be able to look into the file? It > supports a > bunch of cards, maybe the extraneous data could be taken out so it'd > fit on the > smaller ROM. I"ll try that. > > Thanks for the great responses, though. I really appreciate the time > and > information that's been sent to the list :-) > > Bolton -- SuperMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | Service & Replacement Parts [EMAIL PROTECTED] | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> SuperMacs list info: <http://lowendmac.com/supermacs/list.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/supermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
