You can always send me the dead modules and I'll rebuild them (GlitchWorks == me, my wife sometimes helps with assembly). Whatever you do, don't throw out the dead NVRAMs -- I'll buy them or pay for you to ship them or whatever, they're not making more and they're the only solution that's 100% compatible.
Yeah, the "still works but pukes errors" is the typical symptom of the newer, slightly incompatible 48T02s in Sun machines. I don't recall if mine kept accurate time with the newer modules. Thanks, Jonathan On Fri, Apr 27, 2018 at 6:28 PM, Alan Perry via cctalk < cctalk@classiccmp.org> wrote: > The ones from Mouser work well enough in every system that I have used > them in. I still get the IDPROM corrupt message on boot on some systems, > but it holds the MAC and the systems boot without intervention. > > I tried to repair a few and botched most of them. I know that I should be > using the GlitchWorks stuff, but it has been easier to just buy something > that I can plug in. > > alan > > > On 4/27/18 3:15 PM, systems_glitch via cctalk wrote: > >> Don't get the new MK48T02/MK48T08s from Mouser et al, they're not fully >> compatible. They will retain NVRAM but the clock part is different and >> you'll get an error on that (system won't autoboot). Rebuild your old >> NVRAM! I made up some little boards to make the repair cleaner and faster >> to do (I had about 50 NVRAMs to repair): >> >> http://www.glitchwrks.com/2017/08/01/gw-48t02-1 >> >> There are other guides for tacking on a coin cell holder without cutting >> off the entire top encapsulation, but if you do that, it may not fit under >> SBus cards if you're doing it on a system that puts SBus slots over the >> NVRAM. >> >> Thanks, >> Jonathan >> >> On Fri, Apr 27, 2018 at 6:03 PM, Glen Slick via cctalk < >> cctalk@classiccmp.org> wrote: >> >> On Fri, Apr 27, 2018 at 1:55 PM, Alan Perry via cctalk >>> <cctalk@classiccmp.org> wrote: >>> >>>> - SPARCstation 1. Chassis is intact. It has a bad IDPROM; aside from >>>> that >>>> it passes onboard diagnostics. It has 12M memory, no HDD now, and a >>>> 3.5" >>>> floppy drive. It has no SBus cards. Aside from the IDPROM, it doesn't >>>> have any issues (but I haven't run an OS on it yet). Like the SS2, it >>>> needs a bath. A small portion of the plastic cover over the rear of >>>> the >>>> case is broken off. >>>> >>>> What are these "actual parts expenses"? IDPROMs are around $25 on >>>> Mouser. >>>> SCSI HDDs start around $70 shipped on eBay and SCSI2SD are $60 plus >>>> shipping to me plus the SD price. Given the price of 25 year old HDDs >>>> >>> with >>> >>>> a stated service life of 5 years (according to one spec sheet that I >>>> >>> read), >>> >>>> SCSI2SD looks pretty attractive. >>>> >>>> When you say IDPROM, is that a Dallas built-in battery NVRAM type of >>> thing? I have an SS1 with a dead NVRAM thing. Are the currently >>> available versions of those new at Mouser fully compatible? Those are >>> one of those things that the new versions aren't always fully >>> compatible with the old versions for some systems, even though they >>> are supposed to be. >>> >>> My SS1 is also in the Seattle area. If there is much demand for those >>> it's probably one of those systems I'll never get around to doing >>> anything with it myself. I also have a 4/110. Those seem to be a lot >>> less common, and maybe more collectible. >>> >>> >
