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Search: Posts Made By: momaka
Forum: Troubleshooting Power Supplies and Power Supply Design 01-09-2022, 01:00 AM
Replies: 14
Views: 2,523
Posted By momaka
Re: Casing Power MPT-301 [PCB ATX9806b-p REV: A3]

Pentium4!!!!!!!!!!!!!!!!! :bow:
Wow, you're back! :cheers: Man, I was starting to get worried. Hope you're doing well and good to see you more often around here. Your motherboard recap posts are...
Forum: Troubleshooting Power Supplies and Power Supply Design 09-15-2021, 07:21 AM
Replies: 14
Views: 2,523
Posted By momaka
Re: Casing Power MPT-301 [PCB ATX9806b-p REV: A3] - load testing

Hmmm, just stumbled upon this after trying to catch a few details of my recap...

So, the Q-TEK ADT-350 in the last link above - that's not actually a PSU made by Macron. It's a CWT ISO series, and...
Forum: Troubleshooting Power Supplies and Power Supply Design 06-10-2021, 10:23 PM
Replies: 14
Views: 2,523
Posted By momaka
Re: Casing Power MPT-301 [PCB ATX9806b-p REV: A3] - load testing

Thank you for posting this! :smile:
Yeah, your 2x 3300 uF Rubycon MBZ caps will certainly keep the 5VSB circuit nice and quiet on ripple... though even the stock 2x 2200 uF are probably already...
Forum: Troubleshooting Power Supplies and Power Supply Design 06-02-2021, 10:40 PM
Replies: 14
Views: 2,523
Posted By momaka
Cool Casing Power MPT-301 [PCB ATX9806b-p REV: A3] - recap & mods

When it comes to recapping of this PSU, I’ll jump straight to the diagram here:
https://www.badcaps.net/forum/attachment.php?attachmentid=238117&stc=1&d=1622695054
It’s a very straight-forward PSU...
Forum: Troubleshooting Power Supplies and Power Supply Design 06-02-2021, 10:23 PM
Replies: 14
Views: 2,523
Posted By momaka
Post Casing Power MPT-301 [PCB ATX9806b-p REV: A3] - load testing

Next up: a few load tests…
Test #1: ~6 Amps on 12V, 2.5 Amps on 5V, 1.6 Amps on 3.3V
Test #2: ~12 Amps on 12V, 5 Amps on 5V, 1.6 Amps on 3.3V
Test #3: ~1.7 Amps on 12V, 10 Amps on 5V, ~2.9 Amps on...
Forum: Troubleshooting Power Supplies and Power Supply Design 06-02-2021, 10:17 PM
Replies: 14
Views: 2,523
Posted By momaka
Post Casing Power MPT-301 [PCB ATX9806b-p REV: A3] - 5VSB circuit

And here is the schematic for the 2-transistor self-oscillating 5VSB circuit of the Casing Power MPT-301 PSU:
https://www.badcaps.net/forum/attachment.php?attachmentid=238112&stc=1&d=1622693809
...
Forum: Troubleshooting Power Supplies and Power Supply Design 06-02-2021, 10:05 PM
Replies: 14
Views: 2,523
Posted By momaka
Post Casing Power MPT-301 [PCB ATX9806b-p REV: A3]

This one should make @Pentium4 smile :smile: (if he is still reading BCN forums) – I got a new old stock / open box Casing Power MPT-301 PSU on eBay for $4 total. :rejoice:
238094

Yes, it’s a...
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