gbeirn wrote on 2021-03-04, 02:27:
There is actually one for sale on eBay right now, maybe you can the seller what they say.
FIC First International Computer SD11, Slot A, AMD Motherboard
Yeah, I've already messaged one of them. Hopefully they'll get back to me.
Horun wrote on 2021-03-04, 02:24:Here is SD-11 with 8 mosfets: http://hw-museum.cz/mb/61/fic-sd11 no way to read them.
I thinking they revised the boards and the […]
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Here is SD-11 with 8 mosfets: http://hw-museum.cz/mb/61/fic-sd11 no way to read them.
I thinking they revised the boards and the newer w/4 mosfets can handle the current just fine where the ones with 8 needed all 8 because of the parts used could not handle the current/wattage.
Those Fairchilds max at 100Amp, just an observation....
As for power supply issues: same with socket A you need very high 5v amp rail for these to work well from my experience.
Most newer ATX cannot deliver the 5v amps full time as required, something like the Antec True-Power 480 that can give max of 38Amps on the 5v is what I used w/o issue but they are no longer made 🙁
Maybe, but there's another listing for the Compaq version of the SD-11 that includes the OEM PSU: it only had 25 amps on the 5v rail. The complaints about the SD-11 being picky with PSUs seemed to be commonplace when it was released, as well, and that the handful of PSUs approved by FIC had 32 amps and higher on the 5v rail.
Also, I took a quick look at another Athlon Mobo I have (a Soltek Socket a NF2 pseudo ITX unit) and it apparently uses the SMD version of a very similar MOSFET: http://www.farnell.com/datasheets/245431.pdf along with this Infineon MOSFET: https://pdf1.alldatasheet.com/datasheet-pdf/v … IPP06N03LA.html
I'm planning to pick up a multimeter tomorrow so I can tone out which one is the high side and which one is the low side.
I looked into buying some of these Infineon MOSFETs but anyone who sells them has really high minimums, so barring learning what FIC used on the Compaq board, I need to know how close to that Infineon's specs I need to get and what values are most important to match. I did find one that was somewhat similar: https://www.mouser.com/datasheet/2/196/IPP055 … 1.04-522939.pdf