Am Freitag, den 26.08.2005, 17:56 -0700 schrieb Luis Hurtiz: > question #2 is I have some old bios (pentium 200mhz, > 286 and 386 old computers) I want to use this bios in > the network cards can I burned them with uniflash > hotswapping them, do they work? anyone with experience > on that here?
Those 286/386 BIOSes usually were NOT flash chips. You probably have EPROMs, not EEPROMs, which meens they can not electrically be erased but need ultraviolet light (and that is what the window on top of those chips is for). Your chips probably bear inscriptions like 27C128 (16 kbyte), 27C256 (32 kbyte), 27C512 (64kbyte). The 27C64 are no good, because too small for etherboot (8 kbyte). If you have an UV lamp which you can take the UV screen off, and you have an EPROM burner, you probably can reuse them (I did with about 50 of them, just "erase" them under UV light WIHTOUT LOOKING INTO THE UNSCREENED LAMP for a night). You should make sure they contain only "FF" (all bits set) after the erasure (else they take some more minutes :-). Also ALWAYS verify they really contain what you burned into them after "letting the settle" for two or three hours. If it does not after the second try, dump them, it is not worth the trouble. If the chip is larger than what you want to burn into it (by a factor of 2, usually), some people recommend to only burn the 2nd part, others recommend the 1st part. My personal experience is burning exactly 2 copies of the etherboot (or whatever) works best. This depends on how the network card connects the ROM pin for the address line that is "over" (unused) here- if it is not connected at all, it might be "floating" (something like 0.5 in a binary world just sucks). So, as a sum-up: Tools needed: - UV lamp (face tan or so) - EPROM burner > , is not about the money but that even > dow I live 350km away from the texas border is really > complicated for me to get stuff from the US (buying > the chips for the cards) not practical at all. If you need more info about EPROM burning, feel free to ask. Anselm ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
