Re: SS20 IDPROM chip

There is a well-tried procedure that worked for just about anything from the old 
Roadrunner (386i), IPX up to the SS20 and beyond.

http://www.net-kitchen.com/pipermail/suns-at-home/2001-March/000838.html

(I thought everyone knew that by now)

-----------------

On 07/01/11 18:55, Craig Dewick wrote:
> On Wed, 11 May 2011, Steve wrote:
>
>> Hi list,
>>
>> The IDPROM in one of my SparcStation20s seems to have given up the
>> ghost, finally.
>>
>> I do have another ss20 that has a fault on the motherboard so I'm going
>> to try the chip from the 'spares' machine in the one I'm actually using.
>>
>> The problem is, how do you actually remove the chip from the board? It
>> looks as thought it should simply be pulled off the board, gripping a
>> lip at top and bottom of the chip holder.
>> The ss20 service manual doesn't mention how you actually remove it...
>>
>> Also, if this chip is also non-usable, is anyone aware of a good source
>> in the UK? I've found a few places via Google in the US already.
>
> I used to have these when I ran my SRK business. Not sure if I still
> have the ones for SS20's (48T18's I think).
>
> They are socketed and should be removable. They're just generic
> battery-backed static RAM with a lithium cell contained inside the
> 'bulbous' cover.
>
> The very early ones (especially 48T02's) could have the cover carefully
> cut back to expose the battery terminals and a new battery wired in.
> I've still got a 48T02 here which I customised with a replacable
> calculator battery holder attached to the top (have to get a good pic of
> this one day!).
>
> Craig.
>