[rescue] NVRAM Part sanity check

[Michael Lasham]

Hi
Fixing the nvram on a sunblade 100/150 is not too hard, takes only a couple
of minutes.
See this link for the instructions https://github.com/MrSparc/idprom-repair

It's only a pain if you have to do it every boot - but if you use a fixed
nvram chip with new battery you do it once, and again when the battery
needs replacing.


Cheers

On Mon, 2 Dec 2024 at 09:13, Peter Stokes via rescue <rescue at sunhelp.org>
wrote:

> Hi
>
> I have seen docs in the past outlining changing the NVRAM on OBP 4 and not
> something I would care to do, life is too short….
>
> Peter
>
> Sent from my iPad
>
> On 1 Dec 2024, at 17:32, Jonathan Chapman via rescue <rescue at sunhelp.org>
> wrote:
>
> 
> It can be done on the Sun Blade 100 itself, but requires a
> complicated/annoying song and dance. I always did it on something else. You
> can program just the NVRAM section on e.g. a TL866+ programmer, as a 32K
> NVRAM. It will fail checksum as the clock section throws it off, but will
> still program the NVRAM part.
>
> Thanks,
> Jonathan
>
> On Sunday, December 1st, 2024 at 12:11, Peter Stokes via rescue <
> rescue at sunhelp.org> wrote:
>
> Hi
>
> For the 100 you need a 48t59 and you need to program it with the correct
> id etc for a 100 Inc checksum as not possible to change on the 100/150.
>
> Peter
>
> Sent from my iPhone
>
> On 1 Dec 2024, at 16:21, Steve Hatle via rescue <rescue at sunhelp.org>
> wrote:
>
>  I have a friend that has a Sunblade 100 that has lost it's NVRAM
> battery. I have no problem with doing the Dremel work and adding a
> Glitchworks battery board, but he's 400 miles away.
>
> I was just going to lift a chip from a suitable donor, do the work and
> then send it to him, but I just want to make sure that I use the correct
> chip, since I don't have a 100 here.
>
> The FEH seems to indicate it's the same chip across most of the early
> Ultra machines, but since they have differeing part numbers, I'm curious if
> it really makes a difference? I'm guessing not, but any confirmation either
> way would be helpful.
>
> Thanks,
>
> Steve
>
> Ultra 1
> Ultra 2
> Ultra 5/10
> Ultra 5/10
> Ultra 5/10
> Ultra 5/10
> Ultra 30
> Ultra 60/E220R
> E250
> E450
> Ultra 80/E420R
> Sun Blade 100
> Sun Blade 150
> Sun Fire 280R
> Netra t1 Model 100/105
> Netra t1 Model 100/105
> Netra 20
> Netra 20
> Netra T1 AC200/DC200
> Netra T1 AC200/DC200
> Netra 120
> Netra 120
> Sun Fire V120
> Sun Fire V120
> Sun Blade 1000
> Sun Blade 2000
> Sun Fire V480
> Sun Fire V880
> Ex000 Clock
> Ex000 I/O
> Fx800 Sys Cont
> Fx800 ID Board 80xxxxxx
> 80xxxxxx
> 8xxxxxxx
> 8xxxxxxx
> 8xxxxxxx
> 8xxxxxxx
> 80xxxxxx
> 8xxxxxxx
> 8xxxxxxx
> 8xxxxxxx
> 8xxxxxxx
> 8xxxxxxx
> 83xxxxxx
> 8xxxxxxx
> 8xxxxxxx
> 8xxxxxxx
> 83xxxxxx
> 83xxxxxx
> Unprogrammed
> 83xxxxxx
> Unprogrammed
> 83xxxxxx
> Unprogrammed
> 83xxxxxx
> 8xxxxxxx
> 83xxxxxx
> 83xxxxxx
> 83xxxxxx
> 8xxxxxxx
> 8xxxxxxx
> 8xxxxxxx
> 8xxxxxxx 48T59 NVRAM
> 48T59 NVRAM
> 48T59 NVRAM
> 48T59 NVRAM
> 48T59 NVRAM
> 48T59 NVRAM
> 48T59 NVRAM
> 48T59 NVRAM
> 48T59 NVRAM
> 48T59 NVRAM
> 48T59 NVRAM
> 48T59 NVRAM
> 48T59 NVRAM
> SEEPROM
> CP1500 IDPROM
> Configuration Card
> Configuration Card
> Configuration Card
> 48T59 NVRAM
> Configuration Card
> 48T59 NVRAM
> Configuration Card
> 48T59 NVRAM
> Configuration Card
> SEEPROM 1× MAC
> SEEPROM 1× MAC
> SEEPROM 2× MAC
> SEEPROM 2× MAC
> 48T59 NVRAM
> 48T59 NVRAM
> 48T59 NVRAM
> SEEPROM 525-1430
> 525-1417
> 525-1430
> 525-1817
> f100-6889
> 100-6948*
> 525-1430
> 525-1430
> 525-1726
> 525-1673
> 525-1785**
> f100-6889
> f100-6889
> 525-1788
> 370-3997*
> 370-4285
> 370-4435*
> 370-5155
> 100-6889
> 370-4285
> 100-6889
> 370-4285
> 100-6889
> 370-4285
> 525-1788
> 525-1788
> 100-5311*
> 100-5311*
> 100-4007
> 100-4007
> 100-4007
> 501-5880 U2006
> U2006
> U13
> U13
> U13
> U13
> U2706
> U2706
> U2706
> U3104
> U3008
> U48
> U48 _______________________________________________
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>
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