VOGONS


First post, by brashs

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Wondering if any explanations for this amusing oddity I encountered in a pic from an Australian-manufactured IBM PC 330 listed for sale:

The attachment riser1.jpg is no longer available

Another unit I found with the same:

The attachment riser2.jpg is no longer available

Reply 1 of 11, by Shagittarius

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Would you kindly explain your post.

Reply 2 of 11, by jmarsh

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I assume they're referring to the lettering on the top edge of the riser PCB.

Reply 3 of 11, by bertrammatrix

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That is hilarious. Mmm you should edit that picture/circle the text.

I bet there is a story behind that. I wonder if it was perhaps a reminder to not put the sticker over that spot?

Reply 4 of 11, by brashs

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bertrammatrix wrote on Yesterday, 04:37:

That is hilarious. Mmm you should edit that picture/circle the text.

The fact it's an IBM made it even funnier to me. Have circled here for those with less Where's Wally/Waldo experience:

The attachment riser1-circled.jpg is no longer available

Was curious if any others of that era (e.g. PS/1s or Aptivas) had something similar. Found an example on an Aptiva riser pictured here:

https://ancientelectronics.wordpress.com/2019 … model-2176-c77/

Wording not as interesting but points to a practice of sometimes having "instructions" on it.

Reply 5 of 11, by maxtherabbit

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there appears to be a 6 pin connector of some type on the back of the PCB there

I assume the silkscreen is telling you not to connect something to it

Reply 6 of 11, by kixs

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maxtherabbit wrote on Yesterday, 13:51:

there appears to be a 6 pin connector of some type on the back of the PCB there

I assume the silkscreen is telling you not to connect something to it

Exactly my thoughts...

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Reply 7 of 11, by fosterwj03

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I have one of those computers, and never noticed the wording on the riser. The computer should have a metal crossbar to help support the top of the case cover that also holds the top edge of the riser in place. I wonder if the wording has to do with the placement of the crossbar in relation to the 3.3 V power connector on the other side of the riser.

Reply 8 of 11, by fosterwj03

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Also, it could have been a factory thing to tell the assembly worker not to place and then solder the power connector to that side of the PCB.

Reply 9 of 11, by Shponglefan

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fosterwj03 wrote on Yesterday, 14:59:

Also, it could have been a factory thing to tell the assembly worker not to place and then solder the power connector to that side of the PCB.

That's my thought as well. It's the only thing that makes sense TBH.

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Reply 10 of 11, by jmarsh

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What I'm curious about is if that riser card could potentially be used in any old VLB slot to add PCI capability to a system? Since the bridge chip is on the riser...

Reply 11 of 11, by bofh.fromhell

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In my mind there's a story behind this.
"Dammit not again Kevin, well were doing another revision anyways".