SGI: Hardware

Indigo CR2032 mod

jan-jaap avatar
jan-jaap
Donor
From Wijchen, The Netherlands
Who joined June 17, 2004, 11:35 a.m.
Wrote the following at May 27, 2012, 12:36 p.m...
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:
DSC_0081.JPG
CR2032 SMD socket, glued to LSI ASIC.

DSC_0084.JPG
Finished product.
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)
bjornl avatar
bjornl
From Sweden
Who joined May 9, 2006, 11:55 a.m.
Wrote the following at May 27, 2012, 1:24 p.m...
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.
guardian452 avatar
guardian452
Donor
From Kentucky, United States
Who joined Aug. 21, 2007, 10:12 p.m.
Wrote the following at May 27, 2012, 1:55 p.m...
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?
Google: Don't Be Evil. Apple: Don't Be Greedy. Microsoft: Don't Be Stupid.
pentium avatar
pentium
From Kamloops, BC
Who joined Aug. 28, 2006, 6:29 p.m.
Wrote the following at May 29, 2012, 3:20 p.m...
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.
:Crimson: :Onyx: :O2000: :O200: :O200: :PI: :PI: :Indigo: :Indigo: :Indigo: :Octane: :O2: :1600SW: :Indigo2: :Indigo2: :Indigo2IMP: :Indigo2IMP: :Indy: :Indy: :Indy: :Cube:

Image <-------- A very happy forum member.
SAQ
From Renton, WA
Who joined July 19, 2006, 8:37 a.m.
Wrote the following at May 29, 2012, 6:04 p.m...
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.
"Brakes??? What Brakes???"

:Indigo: :Octane: :Indigo2: :Indigo2IMP: :Indy: :PI: :O3x0: :ChallengeL: :O2000R: (single-CM)
BetXen avatar
BetXen
From Vevey, Switzerland
Who joined Sept. 21, 2004, 12:05 p.m.
Wrote the following at May 30, 2012, 12:23 a.m...
Well done Jan-Jaap.
I like that and how you revived this nice old Indigo... ;)
:Onyx2: : oxygen (4xR12k400) / :A3504L: :A3504L: : neon (16xI2 1.6, 9MB L2) / :O200: :O200: : beryllium (4xR12k270)
:Fuel: : nitrogen (R16k800) / :Octane2: : carbon (2xR14k600) / :Octane: : lithium (R10k400) / :Octane: : fluorine (2xR12k300) / spare 2xR12k360
:O2: : hydrogen (R10k195) / :O2: : sodium (R5k180) / :O2: : R5k180->200 MB and PM only
:Indigo2IMP: : helium (R10k195, HighImpact) / :Indigo2IMP: : boron (R4k250)/ :Indigo: : magnesium (R4k100) / :Indy: : aluminium (R5k180)
:4D70GT: 4D70GT : my very first one (now property of musée bolo and the foundation mémoires informatiques )
See the hinv/gfxinfo posts here .
jan-jaap avatar
jan-jaap
Donor
From Wijchen, The Netherlands
Who joined June 17, 2004, 11:35 a.m.
Wrote the following at May 30, 2012, 1:32 a.m...
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)
BetXen avatar
BetXen
From Vevey, Switzerland
Who joined Sept. 21, 2004, 12:05 p.m.
Wrote the following at May 30, 2012, 2:11 a.m...
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 (4xR12k400) / :A3504L: :A3504L: : neon (16xI2 1.6, 9MB L2) / :O200: :O200: : beryllium (4xR12k270)
:Fuel: : nitrogen (R16k800) / :Octane2: : carbon (2xR14k600) / :Octane: : lithium (R10k400) / :Octane: : fluorine (2xR12k300) / spare 2xR12k360
:O2: : hydrogen (R10k195) / :O2: : sodium (R5k180) / :O2: : R5k180->200 MB and PM only
:Indigo2IMP: : helium (R10k195, HighImpact) / :Indigo2IMP: : boron (R4k250)/ :Indigo: : magnesium (R4k100) / :Indy: : aluminium (R5k180)
:4D70GT: 4D70GT : my very first one (now property of musée bolo and the foundation mémoires informatiques )
See the hinv/gfxinfo posts here .