SGI Indigo, Warning: Power Failure Detected scrolling forever on install

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telmnstr
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SGI Indigo, Warning: Power Failure Detected scrolling forever on install

Unread postby telmnstr » Sun Apr 23, 2017 7:22 pm

I'm working to get my First SGI running. Originally it was a purchased from Reputable Systems, R3000 Indigo. At some point I laid hands on a 2nd Indigo, R4000 and the parts were mixed. What I am left with should be my original but it has Elan and R4000. Power supply is proper, I replaced a tantulum cap on the bottom of the CPU board that burned up.

I've got a Linux server acting as a netinstall server since I'm too lazy to dig out the Toshiba caddy Cd-ROM that can do the 512 byte blocks.

I was able to load fx.ARCS and partition the drive. Across the network even!

I've got it so the system is able to go through the install phase (remote server, remote directory, it loads sa / miniroot) then immediately starts scrolling WARNING: Power Failure Detected. It's scrolling at a high rate of speed.

I know some SGIs have the ability to race the power outage and spit out that error on serial and maybe ethernet. Has anyone encountered this before? Unfortunately I'm facing a lot of variables.

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miod
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Re: SGI Indigo, Warning: Power Failure Detected scrolling forever on install

Unread postby miod » Sun Apr 23, 2017 11:11 pm

Are you using the R4000 board with the original R3000 chassis and power supply? The R3000 PSU is a bit "weaker" than the R4000 PSU, and running an R4000 board might draw too much from the R3000 PSU.
:Indigo:R3000 (alas, dead) :Indigo:R4000 x4 :Indigo2:R4400 :Indigo2IMP:R4400 x2 :Indigo2:R8000 :Indigo2IMP:R10000 :Indy:R4000PC :Indy:R4000SC :Indy:R4400SC :Indy:R4600 :Indy:R5000SC :O2:R5000 x3 :O2:RM7000 :Octane:2xR10000 :Octane:R12000 :O200:2xR12000 :O200: - :O200:2x2xR10000 :Fuel:R16000 :O3x0:4xR16000 :A350:
among more than 150 machines : Apollo, Data General, Digital, HP, IBM, MIPS before SGI, Motorola, NeXT, SGI, Solbourne, Sun...

telmnstr
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Re: SGI Indigo, Warning: Power Failure Detected scrolling forever on install

Unread postby telmnstr » Mon Apr 24, 2017 11:47 am

I have the power supply that goes to the R4000 board. I looked it up by part number, as I was under the impression the weaker power supply just flat out won't work.

hinv says R4000 75mhz but I suppose it's actually a 150mhz processor?

telmnstr
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Re: SGI Indigo, Warning: Power Failure Detected scrolling forever on install

Unread postby telmnstr » Mon Apr 24, 2017 4:35 pm

Un oh, just checked and it only has 64MB of RAM. I saw somewhere that IRIX 6.5+ requires 128MB.

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Re: SGI Indigo, Warning: Power Failure Detected scrolling forever on install

Unread postby Raion-Fox » Mon Apr 24, 2017 5:33 pm

It doesn't explicitly require it, if I recall. It's just recommended.
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Re: SGI Indigo, Warning: Power Failure Detected scrolling forever on install

Unread postby jan-jaap » Tue Apr 25, 2017 12:56 am

Raion-Fox wrote:It doesn't explicitly require it, if I recall. It's just recommended.

I once accidentally put an Indigo R3000 PSU in an Indigo R4400 Elan and it went poof. Had been working fine before.

So YMMV but I wouldn't recommend it. :mrgreen:

Edit: wait, I thought this was about power supplies, but now I see it was about memory. My fault.
Last edited by jan-jaap on Tue Apr 25, 2017 1:42 am, edited 1 time in total.
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Re: SGI Indigo, Warning: Power Failure Detected scrolling forever on install

Unread postby Trippynet » Tue Apr 25, 2017 1:30 am

Raion-Fox wrote:It doesn't explicitly require it, if I recall. It's just recommended.


Very recommended. IRIX 6.5 will run like a snail drowning in treacle with 64MB RAM :)
Systems in use:
:Indigo2IMP: - Nitrogen: R10000 195MHz CPU, 384MB RAM, SolidIMPACT Graphics, 36GB 15k HDD & 300GB 10k HDD, 100Mb/s NIC, New/quiet fans, IRIX 6.5.22
:Fuel: - Lithium: R14000 600MHz CPU, 4GB RAM, V10 Graphics, 72GB 15k HDD & 300GB 10k HDD, 1Gb/s NIC, New/quiet fans, IRIX 6.5.30
Other system in storage: :O2: R5000 200MHz, 224MB RAM, 72GB 15k HDD, PSU fan mod, IRIX 6.5.30

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Re: SGI Indigo, Warning: Power Failure Detected scrolling forever on install

Unread postby dexter1 » Tue Apr 25, 2017 4:33 am

THIS THREAD has some info on your "Power Failure" warning message. So at least make sure you have proper grounding on your sockets.

Being pedantic: the Power supply for an R3000 Indigo 1 is an ITT PEC4044A and for an R4000 model it's an ITT PEC4044B. My replacement PEC4044B had a sticker withl "BlackJack" on it which was the codename for the R4000 Indigo 1.
Last edited by dexter1 on Tue Apr 25, 2017 3:12 pm, edited 1 time in total.
Reason: fixed url
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telmnstr
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Re: SGI Indigo, Warning: Power Failure Detected scrolling forever on install

Unread postby telmnstr » Tue Apr 25, 2017 1:38 pm

Ah interesting! I saw that one about the power dips causing the issue but didn't know about the grounding thing. I'll put a meter on the outlet tonight and see what the line voltage is.

Originally I smelled a burning smell and took the PSU apart to see if something in it cooked. It didn't, but was able to get view of the PSU connector. I think at that point I did find a pinout somewhere of it. Wonder if the power supply relays this message to the computer via i2c/spi type of bus or if it's just a TTL line or something.

I remember back in the day having serial consoles on my R3K Indigo and being amazed when it shat the message out as power was lost. And no filesystem corruption due to xfs. Ahhh.

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Re: SGI Indigo, Warning: Power Failure Detected scrolling forever on install

Unread postby telmnstr » Tue Apr 25, 2017 6:43 pm

Tried a different power outlet, but Indigo was still connected to the same monitor (via 13w3 to VGA cable that came with my Octane) and same results.

Will swap power cable and re-seat boards next.

I wonder if my Indigo CPU board came from a VME frame, can't remember if I had one of those in the 4d/480 / Crimson / Challenge XL days. It doesn't have the latching tabs.

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Re: SGI Indigo, Warning: Power Failure Detected scrolling forever on install

Unread postby miod » Tue Apr 25, 2017 10:50 pm

telmnstr wrote:I wonder if my Indigo CPU board came from a VME frame, can't remember if I had one of those in the 4d/480 / Crimson / Challenge XL days. It doesn't have the latching tabs.

That should be easy to check; IIUC if it is the VME Indigo, it will lack the audio interface (and thus, the audio connectors on the back).
:Indigo:R3000 (alas, dead) :Indigo:R4000 x4 :Indigo2:R4400 :Indigo2IMP:R4400 x2 :Indigo2:R8000 :Indigo2IMP:R10000 :Indy:R4000PC :Indy:R4000SC :Indy:R4400SC :Indy:R4600 :Indy:R5000SC :O2:R5000 x3 :O2:RM7000 :Octane:2xR10000 :Octane:R12000 :O200:2xR12000 :O200: - :O200:2x2xR10000 :Fuel:R16000 :O3x0:4xR16000 :A350:
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telmnstr
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Re: SGI Indigo, Warning: Power Failure Detected scrolling forever on install

Unread postby telmnstr » Wed Apr 26, 2017 8:36 am

Heart attack! My main goal is to record and playback DAT tapes for fun.

It looks like I might have it backwards, the ELAN graphics set is the one missing the tabs -- and that was on a frame that was possibly in a Crimson or Challenge L or something.

Since I'm not near my Indigo I had to look up pics and I do see the tabs on the boards. There is audio and there is tabs!

telmnstr
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Re: SGI Indigo, Warning: Power Failure Detected scrolling forever on install

Unread postby telmnstr » Sat Apr 29, 2017 6:37 pm

Okay, still no luck.

Going to hunt for pinouts on the SGI Indigo Power Supply (Mine has a PEC-4044B in it.) If I can find the trigger line, maybe pulling it will solve the issue.

AC power should be fine from the wall. I did try another power cable, just in case it is a ground issue.

My coworker tells me has has both a R3K and R4K Indigo at home, so I might borrow his R4K PSU to test.

One thing that complicates things, is that I'm trying to do a network install. Without a working known good IRIX system -- going to try 6.2 netinst in a few. 6.2 has same issue.

Some prior people having a similar issue, the replies are all saying the wall voltage is too low but the OP says their wall voltage is okay:
http://www.verycomputer.com/16_4c1aa8786aff1117_1.htm
http://www.verycomputer.com/16_0c0585b7b96b5527_1.htm

Measuring the wall voltage, I'm seeing 124VAC, so a little bit hot.
I am able to measure hot to gnd, so gnd should be good.

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Re: SGI Indigo, Warning: Power Failure Detected scrolling forever on install

Unread postby robespierre » Sat Apr 29, 2017 7:10 pm

Is it possible that the power supply has failed MOVs, causing it to pull the line voltage low, then detecting a power failure as a result?
MOVs wear out after absorbing repeated spikes.
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telmnstr
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Re: SGI Indigo, Warning: Power Failure Detected scrolling forever on install

Unread postby telmnstr » Sat Apr 29, 2017 7:56 pm

Hmm not sure! I just checked the UPS downstairs and it is pushing ~119VAC. Ran extension cord down to it (it's also running a heavy modern computer load) and the Indigo wasn't happy. It just seems to restart. I moved the extension cord to an outlet and the voltage I'm seeing is 120VAC and still get the same error.

I've seen MOV issues on pinball machines. Hmmm. I still wonder if it's the circuit that provides the main board with the warning that the power just went out. Or the main board's circuit that picks this up from the PSU.


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