Search found 1667 matches

by robespierre
Mon Jan 29, 2018 2:13 pm
Forum: Sun
Topic: IPX and EDO memory
Replies: 4
Views: 253

Re: IPX and EDO memory

There were simms that were only 33 bits wide (1 parity bit per word), instead of the normal 36 bits wide (1 parity bit per byte). That saved on dram chips, because the chips for parity needed to be x1 (less dense). A 36 bit simm needed 4 parity chips per bank, since it had 4 byte select lines. A 33 ...
by robespierre
Thu Jan 25, 2018 1:44 am
Forum: Miscellaneous Operating Systems/Hardware
Topic: Xerox Alto Restoration
Replies: 39
Views: 3057

Re: Xerox Alto Restoration

Inside the Alto's 3 Megabit/s Experimental Ethernet interface: http://www.righto.com/2017/11/fixing-ethernet-board-from-vintage.html Part 18: Diablo disk drive head crashes, head realignment, and CNC surgery on rare alignment packs: https://www.youtube.com/watch?v=G_gKIvDgBHs How do you crack a pass...
by robespierre
Wed Jan 24, 2018 1:48 pm
Forum: Everything Else
Topic: I like workstations dedicated to only one purpose ...
Replies: 11
Views: 599

Re: I like workstations dedicated to only one purpose ...

Anti-reflective (AR) coating, or combined anti-reflective and anti-static (ARAS) coating. They are not that easy to repair or remove. In essence they place a thin layer of silica over a ceramic layer with controlled particle size. The silica is hard and chemical-resistant enough that you can use gla...
by robespierre
Tue Jan 23, 2018 5:43 pm
Forum: Hardware For Sale/Trade
Topic: non SGI related, tons of blade servers and cisco gear
Replies: 11
Views: 461

Re: non SGI related, tons of blade servers and cisco gear

Yes, they should work, you need a cable like this: https://www.datastoragecables.com/fibrechannel/external/hssdc2-db09/#pic1 The array will negotiate down to the speed of the HBA. Most XIO HBAs were either 1 or 2 Gb/s. Try to look inside the connectors on the array and count the pins: HSSDC (1) has ...
by robespierre
Mon Jan 22, 2018 4:42 pm
Forum: Hardware Wanted
Topic: WTB: Powerbook G4, 12in / 1.5GHz
Replies: 17
Views: 580

Re: WTB: Powerbook G4, 12in / 1.5GHz

You need to have a registered Adobe account to download the installers from the website. They do supply license keys.
by robespierre
Mon Jan 22, 2018 12:32 pm
Forum: Miscellaneous Operating Systems/Hardware
Topic: [Need help] SCSI troubles
Replies: 2
Views: 178

Re: [Need help] SCSI troubles

The Adaptec 19160 has a narrow (50-pin) external port. Only the internal port is wide; this is what distinguishes it from the 29160 (wide internal and external ports) and 39160 (two wide external ports).
There could also be some problem with your 50-to-68 cable.
by robespierre
Sun Jan 21, 2018 12:57 pm
Forum: Sun
Topic: IPX and EDO memory
Replies: 4
Views: 253

Re: IPX and EDO memory

Sun workstations require parity memory. Pin 66 is certainly not even wired to the socket.
by robespierre
Sat Jan 20, 2018 9:46 pm
Forum: Hardware For Sale/Trade
Topic: non SGI related, tons of blade servers and cisco gear
Replies: 11
Views: 461

Re: non SGI related, tons of blade servers and cisco gear

MrBill wrote:Fibre channel arrays too. Not sure if i can get them to work with sgi equipment. I do not know what the connector on the back is or if it can be adapted to connect to my sgi onyx or octane. Last picture shows the connector.

Looks like HSSDC2.
by robespierre
Sat Jan 20, 2018 9:25 pm
Forum: Hardware Wanted
Topic: WTB: Powerbook G4, 12in / 1.5GHz
Replies: 17
Views: 580

Re: WTB: Powerbook G4, 12in / 1.5GHz

Floppy drives are easily cleaned. Usually it is just the grease on the worm gears that has dried out and turned to glue. Clean that off with some acetone, dab some fresh grease, and hey presto. I wanted to get them set up as a midi machine to drive some midi equipment. The machines run, ive had trou...
by robespierre
Sat Jan 20, 2018 2:40 pm
Forum: SGI: Discussion
Topic: Maintaining Hardware / fesability of keeping hardware running
Replies: 56
Views: 2442

Re: Maintaining Hardware / fesability of keeping hardware running

That monitor has a diagnostic service port that may reveal more information about the failure.
by robespierre
Fri Jan 19, 2018 10:48 pm
Forum: SGI: Discussion
Topic: Octane Dual 400. EMXI Card. Arrived. Problem.
Replies: 12
Views: 472

Re: Octane Dual 400. EMXI Card. Arrived. Problem.

If you decide to keep it, one thing you can do while it's still working is flood the area with CA adhesive (top and bottom). That will shore it up somewhat against flexing and shorting out, but it probably won't be reliable in the long term. Still, it can't hurt anything.
by robespierre
Fri Jan 19, 2018 12:57 pm
Forum: SGI: Discussion
Topic: Octane Dual 400. EMXI Card. Arrived. Problem.
Replies: 12
Views: 472

Re: Octane Dual 400. EMXI Card. Arrived. Problem.

The PCB is cracked and the internal copper planes are shorting out. It will need to be removed with a grinder and repaired using donor board material.
by robespierre
Thu Jan 18, 2018 2:37 pm
Forum: SGI: Hardware
Topic: ADAT. And the secret is...
Replies: 14
Views: 714

Re: ADAT. And the secret is...

ADAT isn't TOSLINK: unless your converter box has the ADAT (Alesis DAT) logo, it doesn't support it. ADAT is actually a digital audio tape format using SVHS tapes in special Alesis decks. Confusingly, it is also used for two other different things: the 8-ch optical audio interface, and the 9-pin syn...
by robespierre
Thu Jan 18, 2018 1:17 pm
Forum: SGI: Hardware
Topic: sgi shutter shades?
Replies: 2
Views: 235

Re: sgi shutter shades?

I am not sure if my hardware would even be able to play blu ray quality video without stuttering, or at all. I think that a Tezro or other late model SGI can play back video from a Stone array at 2K/1080p (possibly a DM3-VBOB is needed, I don't know). This is not going to be the same codec as the o...

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