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| CPU Card Spacers (X-ray's Folly Part 1) | ||
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Description: Update 2011: as has been pointed out these measurements are useless because what matters is the distance between the two shoulders of the stand-off. The original A4KT spacer is 19.3mm and the Phase 5 PPC one is 17.5mm (see additions in yellow in the pic) ------------------------------------ This is something I didn't know until PaSha pointed it out: the original motherboard CPU spacers on the A4000T are just under 3mm longer than the spacers that come with the Phase 5 Cyberstorm PPC card. The precursor to the folly is the fact that the A4000T spacers are very difficult to remove from the motherboard, whereas the Cyberstorm PPC card spacers are very loose. The folly itself is when the former spacers are assumed to be the same length as the latter. Yes...I, X-ray, assumed this... Picture Stats: Views: 593 Filesize: 192.22kB Height: 768 Width: 1024 Posted by: X-ray at February 25, 2011, 08:38:36 PM Image Linking Codes
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| X-ray Posts:4370 
| October 10, 2006, 10:32:44 AM Because if you have spacers of the wrong length, the card does not make proper contact with the CPU connector on the mobo. And then the Amiga doesn't work, old chap. See X-ray's Folly (Part 2). |
| weirdami Posts:3776 | October 09, 2006, 07:06:44 PM why does it matter? |
| X-ray Posts:4370
| December 15, 2005, 05:38:14 PM @ Chain No, that is too long. I measured the spacer length itself (the proper way this time) and the measurement is 17,5mm. You could get away with 18mm but I think 19,1mm is too much. |
| Chain Posts:1324 | December 15, 2005, 04:14:57 PM What about this? Can i use ...SP-19 type for it? |
| X-ray Posts:4370
| December 04, 2005, 10:45:00 PM @ Piru It should indeed, and I was wondering when someone would bust me for that. Well spotted. I was going to change/update the picture, but the second image I submitted clearly proves that the difference in lengths when comparing one spacer to the other, is due to the spacer length itself, not the retaining 'claw'. Another way of putting it is that the claw lengths are not significantly different, whereas the spacer lengths are. |
| Piru Posts:6946 | December 04, 2005, 10:37:58 PM Uhm, might be a stupid thing to point out, but: Shouldn't the distance be measured of the stops in the spacer, not from the ends? |
| Framiga Posts:4096 | March 25, 2005, 12:24:42 PM This one in PDF seems good: http://www.amiga-hardware.com/manuals/cyberppcpdfmanual.lha i haven't a scanner . . .sorry |
| X-ray Posts:4370
| November 27, 2004, 03:58:38 PM @ Framiga That link doesn't work But I have got those jpegs by another means and they are really poor: you can hardly read them. Do you have a PPC manual? I wouldn't mind some decent scans if you have them available. |
| Framiga Posts:4096 | November 23, 2004, 12:02:17 PM a scanned version of the manual: http://www.amiga-hardware.com/cyberppcman.lha pict 23.jpg |
| X-ray Posts:4370
| November 23, 2004, 11:25:06 AM @ Framiga I wish that manual had come with the PPC card....all I had was PDfs downloaded from the net, no mention of spacers in there :-( |
| Framiga Posts:4096 | November 23, 2004, 10:02:35 AM agree . . .page 41 of the original P5 CSPPC manual ;-) |