Ryan, Thanks very much for the exposition. I shall retain it.
Mel --- Ryan Schmidt <[EMAIL PROTECTED]> wrote: > From the TechTool Lite 3.0.4 help: > > > Pronounced "pea-ram," the parameter RAM is a > non-volatile RAM chip > > residing on your Macintosh motherboard. This > device holds special > > parameters independent of the System or hard > drive. Some of these > > settings include mouse speed and designated > startup device. This > > information is stored in the standard area of PRAM > (the high 128 > > bytes). Below the upper 128 bytes is an area of > PRAM that contains > > more critical settings like boot services, > manufacture date and hours > > of use (mandate information), and other reserved > areas used by the > > System Software. > > > > The traditional method of zapping the PRAM - > holding the command, > > option, P and R keys - only clears the upper bytes > of RAM where > > problems may not reside. Historically, the only > way to correct lower > > PRAM problems was to open up the computer and > momentarily remove the > > PRAM battery. This would clear all of the PRAM > memory allowing the Mac > > ROM to replace the data with default settings. > > > > TechTool Lite will clear ALL of PRAM without the > need to disassemble > > the computer. The program also offers the ability > to save the PRAM > > data before it is cleared and the ability to > restore this information > > should the need arise. TechTool Lite also allows > you to test the > > physical memory that comprises the PRAM. > > TechTool Lite also has a "restore mandate" function: > > > This button allows you to restore the Mandate > information (manufacture > > date & hours of use) to the PRAM chip without the > need to restore the > > entire original contents of the PRAM chip. > Pressing this button will > > prompt you for a previously saved PRAM file from > which to restore the > > mandate information. This button will be grayed > out if your computer > > does not maintain Mandate information (newer > Macintosh models do not). > > > > On 29.12.2004, at 14:14, Mel wrote: > > > Among the various things that I have discovered > that > > exists in those mysterious unaccesible bytes are > the > > numbers of hours minutes and I believe seconds > that > > the mac has been switched on, at least for the > older > > macs. It is my understanding that Tech Tools Lite > not > > only can fix a corrupted PRAM but can also store a > > snapshot of a working pram and allow yuo to > restore > > selectively thus preserving the time on records. > > > > I am new at this and in time when (if) I discover > what > > is in the PRAM, I shall publish that information. > > > > Maybe APPLE can furnish that information by simply > > asking. > > > > Mel > > --- martin <[EMAIL PROTECTED]> wrote: > > > >> Hope you get the results you want, Mel! > >> > >> I'm curious; what information might be stored in > >> those additional 192 bytes? > >> Or, why do you want to access/wipe the entire > PRAM > >> allocation? > >> > >> Just wondering what undocumented goodies might > lurk > >> there ... : ) > >> > >> m > >> (happily running System 6.0.8 on a venerable > SE/30) > >> > >> > >>> TechTool Lite 3.0.4 can allegedly do that. > >>> > >>> http://www.macupdate.com/info.php/id/5995 > >>> > >>> On 24.12.2004, at 19:51, Mel wrote: > >>> > >>>> I need a version of TechTool that will allo9w > me > >> to be > >>>> able to access all of PRAM's 256 bytes, not > just > >> the > >>>> 64 bytes that can be reset using the four keys > on > >>>> start up: command-option-P-R, but need to > access > >> and > >>>> reset the additional 192 bytes that cannot be > >> accessed > >>>> upon start up. > >> > >> -- > >> System6 is sponsored by <http://lowendmac.com/> > >> and... > >> > >> 123Inkjets.com > >> <http://lowendmac.com/ad/123inkjets.html> > >> > >> Support Low End Mac > >> <http://lowendmac.com/lists/support.html> > >> > >> System 6 Heaven > >> > > > <http://www.euronet.nl/users/mvdk/system_6_heaven.html> > >> > >> System6 info: > >> <http://lowendmac.com/lists/system6.html> > >> --> AOL users, remove "mailto:"; > >> Send list messages to: > >> <mailto:system6@mail.maclaunch.com> > >> To unsubscribe, email: > >> <mailto:[EMAIL PROTECTED]> > >> For digest mode, email: > >> <mailto:[EMAIL PROTECTED]> > >> Subscription questions: > >> <mailto:[EMAIL PROTECTED]> > >> Archive: > >> > > > <http://www.mail-archive.com/system6%40mail.maclaunch.com/> > >> > >> iPod Accessories for Less > >> at 1-800-iPOD.COM > >> Fast Delivery, Low Price, Good Deal > >> www.1800ipod.com > >> > > > > > > -- > > System6 is sponsored by <http://lowendmac.com/> > and... > > > > 123Inkjets.com > <http://lowendmac.com/ad/123inkjets.html> > > > > Support Low End Mac > <http://lowendmac.com/lists/support.html> > > > > System 6 Heaven > > > <http://www.euronet.nl/users/mvdk/system_6_heaven.html> > > > > System6 info: > <http://lowendmac.com/lists/system6.html> > > --> AOL users, remove "mailto:"; > > Send list messages to: > <mailto:system6@mail.maclaunch.com> > > To unsubscribe, email: > <mailto:[EMAIL PROTECTED]> > > For digest mode, email: > <mailto:[EMAIL PROTECTED]> > > Subscription questions: > <mailto:[EMAIL PROTECTED]> > > Archive: > <http://www.mail-archive.com/system6%40mail.maclaunch.com/> > > > > iPod Accessories for Less > > at 1-800-iPOD.COM > > Fast Delivery, Low Price, Good Deal > > www.1800ipod.com > > > -- > System6 is sponsored by <http://lowendmac.com/> > and... > > 123Inkjets.com > <http://lowendmac.com/ad/123inkjets.html> > > Support Low End Mac > <http://lowendmac.com/lists/support.html> > > System 6 Heaven > <http://www.euronet.nl/users/mvdk/system_6_heaven.html> > > System6 info: > <http://lowendmac.com/lists/system6.html> > --> AOL users, remove "mailto:"; > Send list messages to: > <mailto:system6@mail.maclaunch.com> > To unsubscribe, email: > <mailto:[EMAIL PROTECTED]> > For digest mode, email: > <mailto:[EMAIL PROTECTED]> > Subscription questions: > <mailto:[EMAIL PROTECTED]> > Archive: > <http://www.mail-archive.com/system6%40mail.maclaunch.com/> > > iPod Accessories for Less > at 1-800-iPOD.COM > Fast Delivery, Low Price, Good Deal > www.1800ipod.com > -- System6 is sponsored by <http://lowendmac.com/> and... 123Inkjets.com <http://lowendmac.com/ad/123inkjets.html> Support Low End Mac <http://lowendmac.com/lists/support.html> System 6 Heaven <http://www.euronet.nl/users/mvdk/system_6_heaven.html> System6 info: <http://lowendmac.com/lists/system6.html> --> AOL users, remove "mailto:"; Send list messages to: <mailto:system6@mail.maclaunch.com> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/system6%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com
