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#apertus IRC Channel Logs

2021/02/28

Timezone: UTC


03:09
swiftgeek
joined the channel
03:10
swiftgeek
I just noticed you are using PGA here https://www.apertus.org/sites/default/files/images/ZIF-Foreground-05.jpg , any chance you know where to source PGA pins?
03:14
Bertl
pins?
03:14
swiftgeek
I have a really horrible project idea that involves putting FPGA on mPGA478MT
03:14
swiftgeek
and desoldering them from existing ones, is not sustainable, nor easy :D
03:15
Bertl
ah, okay, well, mill-max has a number of pins for this purpose
03:18
Bertl
3157-0-00-15-00-00-03-0 for example
03:19
Bertl
they have pins for SMD as well as THT and press-fit
03:19
swiftgeek
yeah i will need SMT ones
03:20
Bertl
they are also sold by many distributors, but they aren't cheap
03:20
swiftgeek
mPGA478MT has a bit of advantage over LGA775, coz i can easily have bigger PCB that goes beyond socket (perhaps for extra devel/debug connectors)
03:21
swiftgeek
i can always investigate some crazy mechanical hacks with lga775 ^^
03:22
Bertl
let me know how that goes for your ...
03:24
swiftgeek
well there is still a lot to investigate, like feasibility of lowering clock on entire system (basically whether peripherals will still work at greatly reduced reference clocks)
03:24
comradekingu
left the channel
03:25
swiftgeek
i didn't see yet any such debugging techniques being documented by eg. intel, yet both intel and some board vendors seem to use it
03:26
BAndiT1983
changed nick to: BAndiT1983|away
03:26
Bertl
certainly worth a try then
03:30
swiftgeek
the one i found before was https://www.mac8japan.com/ , and i couldn't find any other vendor
03:31
swiftgeek
https://www.mac8japan.com/products/650
03:33
Bertl
I see, what do they charge per pin (for 1000pcs)?
03:34
swiftgeek
no idea yet, still researching options :D
03:35
Bertl
fair enough!
03:40
swiftgeek
sadly "slot 1" isn't using QDR FSB, so can't use that
03:48
swiftgeek
sadly there is no way to search for surface mount only on mill-max site
03:49
Bertl
search via a distributor like digikey
03:50
Bertl
(or maybe octopart)
03:50
swiftgeek
actually picking surface mount tag only show 43 entries https://www.mill-max.com/search/tags/surface-mount?tab=pinsrecs
03:53
swiftgeek
and octopart only find me this one https://media.digikey.com/Photos/Mill-Max%20Mfg%20Photos/1508-0-57-15-00-00-03-0.jpg
04:00
swiftgeek
lol somehow managed to enter query dumb enough to land here https://www.finecs.co.jp/en/products/terminal/1101.html
04:03
Bertl
nice find
04:06
swiftgeek
which gives one fun tip: search for anyone making copper pillars ^^
04:06
swiftgeek
which also managed to give me results for other thing i was missing, leadframe vendors https://www.shinko.co.jp/english/product/ic-package/leadframe/sfp-lf.php
04:38
eppisai
left the channel
05:45
Bertl
off to bed now ... have a good one everyone!
05:45
Bertl
changed nick to: Bertl_zZ
07:24
mumptai
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10:28
BAndiT1983|away
changed nick to: BAndiT1983
12:51
Bertl_zZ
changed nick to: Bertl
12:51
Bertl
morning folks!
15:20
BAndiT1983
changed nick to: BAndiT1983|away
15:24
mumptai
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15:36
BAndiT1983|away
changed nick to: BAndiT1983
15:55
comradekingu
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16:10
LordVan
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16:41
mumptai
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20:01
LordVan
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20:41
Bertl
off for now ... bbl
20:41
Bertl
changed nick to: Bertl_oO
23:22
mumptai
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23:39
BAndiT1983
changed nick to: BAndiT1983|away
23:55
Spirit532
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23:55
Spirit532
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