Is the NVRAM battery the huge Rayovac battery on the motherboard? I couldn't figure out how to get that thing off, and since I heard about leaking batteries ruining Macs, I'd love to get it off.
Also, this is the RAM I bought. Clearly says FPM on the site. http://www.macmemorystore.com/item/detail/32mb-72p-fpm-simm-60ns-5v/ On Sat, Aug 20, 2016 at 8:56 PM, Jonathan Morton <[email protected]> wrote: > > > On 21 Aug, 2016, at 03:42, V. Sigma <[email protected]> wrote: > > > > First the question: would 60ns FPM SIMM 72-pin memory work? Most 70ns > RAM I found is really small capacity but I want to put 32MB in this baby. > > Lower latencies are better, and 60ns FPM will work fine in a machine that > demands 80ns FPM. > > However, 60ns is a latency I usually associate with EDO RAM. Sometimes > EDO will work in an FPM machine, but sometimes it can cause physical damage > (this definitely happens with Acorn RiscPCs). Make sure you know what > you’re getting. > > > Also, somehow, despite booting into OS 8.1 the first time I started it, > the Performa no longer has an OS now. I get the ? floppy icon. How did that > happen? > > That could either be a HDD fault (the original is ancient!), an IDE > controller fault (capacitors?) or an NVRAM fault (battery). > > Some old HDDs develop “stiction” in the main bearing when at rest, and a > slight jolt will free them up. This is a common cause of old Macs working > fine after having just been set up in a new location, but failing to start > later. I think it’s more common with the Mac II line’s SCSI drives (the > Quantum 20 & 40 MB drives are notorious for it) than the later IDE ones, > though. > > Some Macs hate having a dead NVRAM battery, and will boot more reliably > with it removed. Others absolutely require a healthy battery. They’re not > expensive if you know where to look. > > Either way, time to open the machine and investigate its condition. > > - Jonathan Morton > > -- > -- > ----- > You received this message because you are a member of the Vintage Macs > group. > The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our > netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to [email protected] > To leave this group, send email to vintage-macs+unsubscribe@ > googlegroups.com > For more options, visit this group at http://groups.google.com/ > group/vintage-macs > > Support for older Macs: http://lowendmac.com/services/ > --- > You received this message because you are subscribed to a topic in the > Google Groups "Vintage Macs" group. > To unsubscribe from this topic, visit https://groups.google.com/d/ > topic/vintage-macs/0ClA8VpykRc/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To leave this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
