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Troubleshooting Power Supplies and Power Supply Design

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Technical discussion for power supplies. This covers PC supplies, and any other related power supply issue. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!

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Topics Statistics Last Post
Sticky: the gutless, bloated, and fried power supply hall of shame by ratdude747
Started by ratdude747, 12-18-2009, 05:18 AM
1,759 responses
579,426 views
0 likes
 Last Post PeteS in CA
by PeteS in CA
09-16-2024, 04:31 PM  
Sticky: Power supply build quality pictorial. part 2 by kc8adu
Started by kc8adu, 06-29-2009, 01:23 PM
3,227 responses
1,328,510 views
0 likes
 Last Post japlytic
by japlytic
09-14-2024, 07:04 PM  
Sticky: List of pin compatible pwm/supervisor PSU ICs by Quaddro
Started by Quaddro, 12-06-2019, 02:54 AM
18 responses
11,896 views
0 likes
 Last Post tartuf
by tartuf
01-17-2023, 06:36 PM  
Sticky: WARNING: Live heatsinks & single pole on/off switches in switching power supplies by Per Hansson
Started by Per Hansson, 06-09-2021, 12:01 PM
6 responses
7,333 views
0 likes
 Last Post RJARRRPCGP
by RJARRRPCGP
12-29-2021, 12:12 AM  
Sticky: The PSU FAQ by PeteS in CA
Started by PeteS in CA, 08-28-2005, 04:29 PM
55 responses
124,638 views
0 likes
 Last Post bianchi77
by bianchi77
08-31-2016, 11:54 PM  
Sticky: General PSU Discussion and FAQ contributions by PeteS in CA
Started by PeteS in CA, 08-28-2005, 04:29 PM
20 responses
68,817 views
0 likes
 Last Post moe2020
by moe2020
10-04-2015, 12:04 AM  
Sticky: Power supply build quality pictorial DISCUSSION by dood
Started by dood, 12-21-2005, 03:39 PM
353 responses
220,545 views
0 likes
 Last Post momaka
by momaka
06-19-2014, 12:52 PM  
Closed, Sticky: Power supply build quality pictorial.closed.use part 2 by dood
Started by dood, 12-21-2005, 03:39 PM
410 responses
433,625 views
0 likes
 Last Post jvyt
by jvyt
06-25-2009, 01:40 AM  
Wier WA505 SMPSU output failed by nath1977
Started by nath1977, 10-01-2023, 06:05 AM
36 responses
1,743 views
0 likes
 Last Post CapLeaker
by CapLeaker
10-25-2023, 07:44 PM  
Samsung ccfl tv powerboard clicks every 5 seconds. by nomoresonys
Started by nomoresonys, 07-01-2023, 02:10 PM
113 responses
4,360 views
0 likes
 Last Post nomoresonys
by nomoresonys
10-24-2023, 04:39 AM  
Mitsubishi Melservo MR-J2S-100A alarm: AL.E9 by Per Hansson
Started by Per Hansson, 04-13-2017, 09:54 AM
55 responses
33,500 views
0 likes
 Last Post metalgearsolid
by metalgearsolid
10-21-2023, 05:30 AM  
psu sata power wires thinner - does it make a difference ? by playit
Started by playit, 10-12-2023, 05:25 AM
17 responses
911 views
0 likes
 Last Post playit
by playit
10-14-2023, 02:07 PM  
xbox 360 150w, no 12V by mosfetratus
Started by mosfetratus, 09-18-2023, 05:30 AM
5 responses
696 views
0 likes
 Last Post mosfetratus
by mosfetratus
10-12-2023, 01:32 AM  
Lenze 532 by MhofuLee
Started by MhofuLee, 10-11-2023, 05:19 AM
0 responses
384 views
0 likes
 Last Post MhofuLee
by MhofuLee
10-11-2023, 05:19 AM  
trying to fix a 6V 0.5A T1 (Transformer) AD050120T2 power supply by Tarot Superstars
Started by Tarot Superstars, 08-14-2023, 12:45 PM
94 responses
5,416 views
0 likes
 Last Post Tarot Superstars
by Tarot Superstars
10-08-2023, 01:13 PM  
Tektronix TDS1002 w/ Ault SW424RA0000F03 by rnjacobs
Started by rnjacobs, 12-02-2016, 08:32 PM
27 responses
7,076 views
0 likes
 Last Post luizbitencourt
by luizbitencourt
10-07-2023, 01:15 PM  
Reebok GT40s Treadmill power supply issue? by notallbad
Started by notallbad, 05-04-2017, 12:30 PM
45 responses
23,091 views
0 likes
 Last Post vikas23
by vikas23
10-07-2023, 07:52 AM  
Dell DA2 12V 18A PSU repair P/N M8811 by technicalspecialist
Started by technicalspecialist, 08-23-2014, 11:40 AM
9 responses
3,627 views
0 likes
 Last Post technicalspecialist
by technicalspecialist
10-04-2023, 09:41 PM  
Ps5 cfi-1215a adp-400fr by m4a2t0t
Started by m4a2t0t, 09-20-2023, 09:21 PM
5 responses
2,078 views
0 likes
 Last Post CapLeaker
by CapLeaker
10-04-2023, 04:44 AM  
E-Bike battery connected the wrong way by MirceaL
Started by MirceaL, 10-01-2023, 01:28 PM
8 responses
738 views
0 likes
 Last Post stj
by stj
10-03-2023, 03:20 AM  
Are minimum load resistors actually necessary?? by Th3_uN1Qu3
Started by Th3_uN1Qu3, 10-01-2010, 02:54 PM
12 responses
5,923 views
0 likes
 Last Post nath1977
by nath1977
10-01-2023, 05:24 AM  
Aeg Pover B 1000 UPS PCB problem by liniuks
Started by liniuks, 09-27-2023, 12:30 AM
3 responses
617 views
0 likes
 Last Post CapLeaker
by CapLeaker
09-29-2023, 05:03 PM  
Canon battery charger lc-e5e Schematics by alexandruseu
Started by alexandruseu, 08-29-2023, 03:03 AM
13 responses
1,286 views
0 likes
 Last Post alexandruseu
by alexandruseu
09-28-2023, 03:26 AM  
13.8V HW1200R-20A repair by pdavid
Started by pdavid, 10-22-2011, 10:21 AM
11 responses
8,860 views
0 likes
 Last Post euro-botics
by euro-botics
09-27-2023, 09:07 AM  
Astec LPT63 switched mode psu circuit diagram by Michaelhohara
Started by Michaelhohara, 09-25-2023, 08:10 AM
6 responses
846 views
0 likes
 Last Post stj
by stj
09-26-2023, 10:24 AM  
Delphi 28242585 radio power supply section by rddube
Started by rddube, 09-23-2023, 05:15 PM
8 responses
851 views
0 likes
 Last Post stj
by stj
09-25-2023, 01:46 PM  
Altech DSD4121 SAT TV power supply service manaul by CdDvdFlash
Started by CdDvdFlash, 09-19-2023, 06:19 AM
7 responses
802 views
0 likes
 Last Post momaka
by momaka
09-25-2023, 01:07 PM  
Bosch al 3620 cv . charger by petehall347
Started by petehall347, 09-14-2023, 02:12 PM
9 responses
1,718 views
0 likes
 Last Post sam_sam_sam
by sam_sam_sam
09-25-2023, 12:50 PM  
Astron RS-7A/10A not regulating output voltage low by CapLeaker
Started by CapLeaker, 09-17-2023, 08:33 PM
18 responses
1,382 views
0 likes
 Last Post CapLeaker
by CapLeaker
09-23-2023, 07:20 PM  
Antec Earthwatts EA-380 smd element type/value by sirpsychol
Started by sirpsychol, 09-03-2023, 07:58 PM
6 responses
802 views
0 likes
 Last Post sirpsychol
by sirpsychol
09-23-2023, 06:17 PM  
Noco Genius 10 by mmpi
Started by mmpi, 09-21-2023, 11:25 AM
5 responses
1,066 views
0 likes
 Last Post lotas
by lotas
09-21-2023, 01:33 PM  
Help needed with fried SWMPS - RING RSC612/RESC612 by madan1
Started by madan1, 07-26-2020, 04:44 PM
26 responses
6,372 views
0 likes
 Last Post it-works
by it-works
09-19-2023, 12:59 PM  
Huntkey model: Hkf1502-3b by EonFlask
Started by EonFlask, 08-14-2023, 08:10 AM
1 response
2,296 views
0 likes
 Last Post aripware
by aripware
09-15-2023, 05:29 AM  
Dell D635EF DELTA DPS-635AB PSU with blown TNY280PN by Dynamite76
Started by Dynamite76, 07-27-2023, 01:52 PM
32 responses
3,037 views
0 likes
 Last Post leetrung
by leetrung
09-14-2023, 08:07 PM  
Rectifier Board out of Power Supply by ljintexas
Started by ljintexas, 09-04-2023, 01:40 PM
11 responses
914 views
0 likes
 Last Post sam_sam_sam
by sam_sam_sam
09-10-2023, 04:00 PM  
450watt power supply 5v, 3.3v short to ground wire,in output rail ,connectors by playit
Started by playit, 09-02-2023, 02:43 AM
19 responses
1,380 views
0 likes
 Last Post playit
by playit
09-08-2023, 03:31 PM  
Help with Delta AP-396AM TV power supply by ravve
Started by ravve, 09-04-2023, 04:07 PM
9 responses
1,450 views
0 likes
 Last Post R_J
by R_J
09-07-2023, 01:45 PM  
PowerBook M4896 Adapter by vletr
Started by vletr, 11-26-2020, 07:50 PM
9 responses
2,054 views
0 likes
 Last Post mcdermd
by mcdermd
09-07-2023, 09:56 AM  
how hot can a toroid inductor go safely? by eccerr0r
Started by eccerr0r, 08-18-2023, 02:20 PM
17 responses
1,843 views
0 likes
 Last Post eccerr0r
by eccerr0r
09-06-2023, 11:00 AM  
Repairing Bestec TFX0250D5W by everell
Started by everell, 02-15-2013, 02:48 AM
23 responses
10,387 views
0 likes
 Last Post momaka
by momaka
09-06-2023, 06:09 AM  
Seasonic Focus Gold+ 750 watt "Hybrid Switch" not working by bigbeark
Started by bigbeark, 09-04-2023, 02:48 PM
2 responses
606 views
0 likes
 Last Post bigbeark
by bigbeark
09-05-2023, 09:14 AM  
Aopen Z400-08FC PSU? by docbrown
Started by docbrown, 02-28-2007, 06:26 AM
7 responses
5,422 views
0 likes
 Last Post Akashrajput787
by Akashrajput787
09-03-2023, 02:26 AM  
Emerson clock radio transformer by littlejohn
Started by littlejohn, 08-30-2023, 07:13 PM
6 responses
804 views
0 likes
 Last Post R_J
by R_J
09-01-2023, 07:51 PM  
psu ac240as-01 dell Optiplex 7010 pc tower by neuronetv@gmail.com
Started by neuronetv@gmail.com, 05-05-2018, 12:16 PM
71 responses
11,823 views
0 likes
 Last Post Ndabu
by Ndabu
08-31-2023, 08:48 AM  
diagnosing an old ATX PSU help identifying resistors (PowerComputing TCX-20D) by tony359
Started by tony359, 08-06-2023, 01:41 PM
57 responses
3,649 views
0 likes
 Last Post momaka
by momaka
08-29-2023, 09:55 AM  
Zalman ZM500-GV stops after 40s and 5VSB drops to 2.5V by socketa
Started by socketa, 12-20-2022, 03:06 AM
105 responses
7,694 views
0 likes
 Last Post socketa
by socketa
08-26-2023, 03:13 PM  
CM V700 no +5vsb, ICE2QR4765 low VCC in... Need guidance please... by mrcliem
Started by mrcliem, 06-29-2023, 08:18 AM
13 responses
1,720 views
0 likes
 Last Post R_J
by R_J
08-25-2023, 09:08 PM  
Corsair CX500 ATX PSU｜Works under some/no load, but not in motherboard by parakeet
Started by parakeet, 06-11-2023, 11:26 AM
9 responses
2,239 views
0 likes
 Last Post anikin73
by anikin73
08-25-2023, 07:52 PM  
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