SPARCstation rescue giveaway (Was: Kei cars and motorcycles (Was: Rick Dickinson, ZX Spectrum designer, RIP))

Alan Perry aperry at
Fri Apr 27 17:28:54 CDT 2018

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.


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):
> 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
> Thanks,
> Jonathan
> On Fri, Apr 27, 2018 at 6:03 PM, Glen Slick via cctalk <
> cctalk at> wrote:
>> On Fri, Apr 27, 2018 at 1:55 PM, Alan Perry via cctalk
>> <cctalk at> 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.

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