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 Post subject: Indigo CR2032 mod
Unread postPosted: Sun May 27, 2012 12:36 pm 
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Joined: Thu Jun 17, 2004 11:35 am
Posts: 3953
Location: Wijchen, The Netherlands
Pulled an Indigo from storage recently, only to find that the Sonneschein SL340 battery I put in many years ago had run out.

Since these batteries cost ~ 13EUR and require soldering I tried something else:
Attachment:
File comment: CR2032 SMD socket, glued to LSI ASIC.
DSC_0081.JPG
DSC_0081.JPG [ 188.71 KiB | Viewed 664 times ]

Attachment:
File comment: Finished product.
DSC_0084.JPG
DSC_0084.JPG [ 192.23 KiB | Viewed 664 times ]

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It turns out that when reset, the WD33C93 defaults to a SCSI ID of 0, and it was simpler to leave it that way... -- Dave Olson, in comp.sys.sgi

Currently in commercial service: Image :Onyx2:(2x) :O3x02L:
In the museum: almost every MIPS/IRIX system.
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 Post subject: Re: Indigo CR2032 mod
Unread postPosted: Sun May 27, 2012 1:24 pm 
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Joined: Tue May 09, 2006 11:55 am
Posts: 327
Location: Sweden
Nice.
I just found two of my Indigos with TOD symptoms, and was going to buy some Sonneschein batteries.
This might be a better solution for future battery changes.


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 Post subject: Re: Indigo CR2032 mod
Unread postPosted: Sun May 27, 2012 1:55 pm 
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Joined: Tue Aug 21, 2007 10:12 pm
Posts: 2875
Has anybody tried a lipo battery yet? I'm not sure if it's the right battery type for this application (wrt standby discharge, recharging, lack of cycling), but I bought some 240mah, 3.7V lipo cells from amazon at $2 each for my thesis project and used a lipo charging IC built into my shoe. Just a mini usb port coming out to recharge, everything else is ANT (wireless)

but the price is very right. lipo is much cheaper than the coin-cells I was planning to use, can be recharged, and has slightly higher capacity for the same size.. good thing since the battery only lasts about 20 hours in my application!

http://www.amazon.com/Upgraded-Syma-S10 ... 653&sr=8-5 (the ad says 200mah, but mine were marked 240mah, ymmv...)

The smallest lipo battery, coupled with a charging IC for when the machine is on, should ensure the battery never dies.. and if it does, just charge it up again?


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 Post subject: Re: Indigo CR2032 mod
Unread postPosted: Tue May 29, 2012 3:20 pm 
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Joined: Mon Aug 28, 2006 6:29 pm
Posts: 4334
Location: Kamloops, BC
For a moment I was all confused why your battery was in a different position than mine. Then I realized you are rocking it with an R4K Indigo. :)

I find that you can get as many CR2032's as you need from any PeeCee you get your hands on. It's about a penny each if you get them and most of the time they are still good.

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 Post subject: Re: Indigo CR2032 mod
Unread postPosted: Tue May 29, 2012 6:04 pm 
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Joined: Wed Jul 19, 2006 8:37 am
Posts: 5758
Location: Renton, WA
pentium wrote:
For a moment I was all confused why your battery was in a different position than mine. Then I realized you are rocking it with an R4K Indigo. :)

I find that you can get as many CR2032's as you need from any PeeCee you get your hands on. It's about a penny each if you get them and most of the time they are still good.


And they come with the holder, which can usually be hacked into place.

I like mounting it on the DMUX - I have mine on the GIO blanking plate leg, and it just doesn't have a nice look and feel.

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There are those who say I'm a bit of a curmudgeon. To them I reply: "GET OFF MY LAWN!"

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 Post subject: Re: Indigo CR2032 mod
Unread postPosted: Wed May 30, 2012 12:23 am 
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Joined: Tue Sep 21, 2004 12:05 pm
Posts: 256
Location: Vevey, Switzerland
Well done Jan-Jaap.
I like that and how you revived this nice old Indigo... ;)

_________________
:Onyx2: : oxygen / :A3504L: :A3504L: : neon (16xItanium2 1.6, L2 9MB) / :O200: :O200: : beryllium
:Fuel: : nitrogen / :Octane2: : carbon / :Octane: : fluorine
:O2: : hydrogen (R10k 195, 512Mo) / :O2: : sodium (R5k 180, 512Mo) / :O2: : R5k 180->200 motherboard and PM only
:Indigo2IMP: : helium (R10k 195, HighImpact, 160Mo) / :Indigo2IMP: : boron / :Indigo: : magnesium
:4D70G: 4D70GT : hydrogen, my very first one (now property of musée bolo and the foundation mémoires informatiques)
See the hinv/gfxinfo posts here.


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 Post subject: Re: Indigo CR2032 mod
Unread postPosted: Wed May 30, 2012 1:32 am 
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Posts: 3953
Location: Wijchen, The Netherlands
pentium wrote:
I find that you can get as many CR2032's as you need from any PeeCee you get your hands on.

Correct. That's where I got the donor cell :)

SAQ wrote:
And they come with the holder, which can usually be hacked into place.

The holders from a PC mainboard are through-hole. The ones I have are SMD so they can be glued to any non-conductive surface. They cost ~ 1€, I think it's worth it. I've glued them on top of Dallas chips and even on an Onyx IO4 PCB.

BetXen wrote:
I like that and how you revived this nice old Indigo... ;)

Thanks. I think I'll have to revive half my Indigo2's and Indys as well next time I power them up ;)

_________________
Now this is a deep dark secret, so everybody keep it quiet :)
It turns out that when reset, the WD33C93 defaults to a SCSI ID of 0, and it was simpler to leave it that way... -- Dave Olson, in comp.sys.sgi

Currently in commercial service: Image :Onyx2:(2x) :O3x02L:
In the museum: almost every MIPS/IRIX system.
Wanted: GM1 board for Professional Series GT graphics (030-0076-003, 030-0076-004)


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 Post subject: Re: Indigo CR2032 mod
Unread postPosted: Wed May 30, 2012 2:11 am 
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Joined: Tue Sep 21, 2004 12:05 pm
Posts: 256
Location: Vevey, Switzerland
If you have an Ikea nearby, you may even find SOLVINDEN... 8 CR2032 batteries for 1.99$ (or 2.5'0€, or 5.95CHF, that's not fair).
But be careful, you always come back with a lot of useless things :D

Regarding the battery holder, I think I used that one once because there are no metal parts on the bottom. The contacts can be bent on the sides.

_________________
:Onyx2: : oxygen / :A3504L: :A3504L: : neon (16xItanium2 1.6, L2 9MB) / :O200: :O200: : beryllium
:Fuel: : nitrogen / :Octane2: : carbon / :Octane: : fluorine
:O2: : hydrogen (R10k 195, 512Mo) / :O2: : sodium (R5k 180, 512Mo) / :O2: : R5k 180->200 motherboard and PM only
:Indigo2IMP: : helium (R10k 195, HighImpact, 160Mo) / :Indigo2IMP: : boron / :Indigo: : magnesium
:4D70G: 4D70GT : hydrogen, my very first one (now property of musée bolo and the foundation mémoires informatiques)
See the hinv/gfxinfo posts here.


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