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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
579,415 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
1,328,432 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
11,895 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
220,544 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
433,623 views
0 likes
 Last Post jvyt
by jvyt
06-25-2009, 01:40 AM  
BeQuiet! Pure Power 9 CM 700W +5VSB only by Nabri
Started by Nabri, 09-22-2024, 11:08 AM
6 responses
161 views
0 likes
 Last Post Nabri
by Nabri
09-24-2024, 05:44 AM  
High Power HP1-J600GD-F12S by redbaron1007
Started by redbaron1007, 09-21-2024, 07:00 PM
11 responses
188 views
0 likes
 Last Post redbaron1007
by redbaron1007
09-22-2024, 02:26 PM  
Help Identifying Component Q2 - Miller d302K 3+12 Diesel Engine Driven Welder by jgusta
Started by jgusta, 09-21-2024, 12:03 AM
3 responses
103 views
0 likes
 Last Post jgusta
by jgusta
09-21-2024, 10:13 PM  
APS output by Alimash
Started by Alimash, 09-19-2024, 12:34 PM
8 responses
77 views
0 likes
 Last Post Alimash
by Alimash
09-21-2024, 12:11 AM  
Schematic and datasheet for LTA1503T by janaka33
Started by janaka33, 09-19-2024, 02:07 AM
0 responses
223 views
0 likes
 Last Post janaka33
by janaka33
09-19-2024, 02:07 AM  
Sparkle 1200W PSU MAGNA Model: SPM1200AXJ8 - Broken. Need help identifying components. Any schematics available? by Sam Scarbo
Started by Sam Scarbo, 09-18-2024, 08:29 AM
0 responses
53 views
0 likes
 Last Post Sam Scarbo
by Sam Scarbo
09-18-2024, 08:29 AM  
Coil replacement - is it worth it? by Francesc V.
Started by Francesc V., 04-07-2023, 12:52 AM
8 responses
1,132 views
0 likes
 Last Post Francesc V.
by Francesc V.
09-17-2024, 05:38 AM  
CyberPower 2200E not switching to AC power (0V output) by emilije
Started by emilije, 06-21-2013, 09:24 AM
25 responses
11,699 views
0 likes
 Last Post Brandi008
by Brandi008
09-16-2024, 03:50 AM  
ADP-160FR ps4 slim PSU, shuts down under load and has severe coil whine. by Gjackson
Started by Gjackson, 01-13-2024, 10:34 AM
29 responses
1,251 views
0 likes
 Last Post speggio91
by speggio91
09-14-2024, 07:12 AM  
Liteon PA-12617 dead (Lenovo ideacentre3) by s_henya
Started by s_henya, 09-06-2024, 03:15 AM
1 response
48 views
0 likes
 Last Post CapLeaker
by CapLeaker
09-06-2024, 04:07 AM  
Sony PS4 ADP400DR - help needed figuring out shorted pads under capacitor C 31 by supravit2000
Started by supravit2000, 07-20-2024, 07:26 AM
3 responses
210 views
0 likes
 Last Post supravit2000
by supravit2000
09-02-2024, 11:15 AM  
Chieftec GPS-450-AA with dead 20N60C3 by zunasthegreat
Started by zunasthegreat, 09-01-2024, 07:12 PM
2 responses
100 views
0 likes
 Last Post zunasthegreat
by zunasthegreat
09-02-2024, 08:32 AM  
NIMH quick charger no power by xeejem
Started by xeejem, 08-29-2024, 04:54 PM
2 responses
59 views
0 likes
 Last Post R_J
by R_J
08-29-2024, 09:14 PM  
Ps5 adp-400fr main transformer by Puuhis79
Started by Puuhis79, 08-26-2024, 10:15 AM
0 responses
81 views
0 likes
 Last Post Puuhis79
by Puuhis79
08-26-2024, 10:15 AM  
Atoll ST200 Amp Power Supply Problem by habanerocat
Started by habanerocat, 08-22-2024, 07:59 AM
3 responses
50 views
0 likes
 Last Post habanerocat
by habanerocat
08-24-2024, 04:27 AM  
APC Smart UPS SUA1500 does not detect AC / doesn't turn on by CapLeaker
Started by CapLeaker, 07-26-2024, 02:48 PM
51 responses
855 views
0 likes
 Last Post CapLeaker
by CapLeaker
08-24-2024, 03:37 AM  
20v / 2A SMPS for a Battery Charger - Explanation of Blown Resistors Please.. by reessi
Started by reessi, 08-22-2024, 08:12 AM
11 responses
119 views
0 likes
 Last Post sam_sam_sam
by sam_sam_sam
08-23-2024, 11:07 PM  
Identifying the PWM circuit on the power supply of the Elipson W35 speaker by Phoenix88
Started by Phoenix88, 08-13-2024, 02:52 AM
2 responses
145 views
0 likes
 Last Post CapLeaker
by CapLeaker
08-22-2024, 08:31 PM  
AT PSU produces video artifacts by rattlesnake
Started by rattlesnake, 08-19-2024, 11:11 PM
4 responses
102 views
0 likes
 Last Post momaka
by momaka
08-22-2024, 02:41 PM  
Troubleshooting B&W Original Powersupply by Delirious
Started by Delirious, 09-02-2016, 05:24 AM
47 responses
27,680 views
0 likes
 Last Post Slawit
by Slawit
08-22-2024, 01:11 PM  
Help identify HP Z800 DPS-850DB IC901 by Candymirror
Started by Candymirror, 04-23-2019, 02:54 AM
8 responses
2,373 views
0 likes
 Last Post sam_sam_sam
by sam_sam_sam
08-22-2024, 06:29 AM  
CyberPower 1350AVR - Repair by plasticrelic
Started by plasticrelic, 10-02-2016, 08:02 PM
42 responses
17,924 views
0 likes
 Last Post gintanto
by gintanto
08-11-2024, 01:21 AM  
Xiaomi Vacuum Cleaner Charger PSU by rtstorm
Started by rtstorm, 05-24-2024, 10:07 AM
15 responses
208 views
0 likes
 Last Post SapFirooz
by SapFirooz
08-10-2024, 12:03 PM  
Samsung / Hansol BN44-00428b by kenny1070
Started by kenny1070, 12-15-2013, 02:15 PM
107 responses
49,863 views
0 likes
 Last Post Ashry
by Ashry
08-10-2024, 11:26 AM  
alimentatore LITE-ON PA-1181-3HA by ut-norm
Started by ut-norm, 10-28-2023, 02:20 PM
3 responses
625 views
0 likes
 Last Post Parafin
by Parafin
08-08-2024, 04:07 AM  
Fa180pm111 / dw5g3 dell psu by kmx200
Started by kmx200, 09-19-2021, 10:38 AM
3 responses
1,047 views
0 likes
 Last Post questore
by questore
08-07-2024, 01:18 AM  
HP Z620 PSU shutting down S10-800P1A by flc1988
Started by flc1988, 08-02-2024, 10:19 PM
0 responses
68 views
0 likes
 Last Post flc1988
by flc1988
08-02-2024, 10:19 PM  
HP-D3057F3H low 5vsb by nubinator
Started by nubinator, 01-15-2012, 09:26 PM
6 responses
3,380 views
0 likes
 Last Post socketa
by socketa
07-30-2024, 04:24 PM  
Problem with Al 300 Stihl by FB5802
Started by FB5802, 07-29-2024, 03:47 AM
0 responses
53 views
0 likes
 Last Post FB5802
by FB5802
07-29-2024, 03:47 AM  
>>> Troubleshooting Delta Power MAX 500ATX ATX power supply by dragon3x
Started by dragon3x, 06-05-2024, 03:34 PM
9 responses
259 views
0 likes
 Last Post dragon3x
by dragon3x
07-24-2024, 09:30 AM  
FSP Epsilon 600W not turning on by Satdude
Started by Satdude, 07-18-2024, 11:11 AM
5 responses
105 views
0 likes
 Last Post salmanbiet
by salmanbiet
07-19-2024, 08:52 PM  
Online UPS input 220VAC high cut - low cut filter PCB troubleshoot. by ithe
Started by ithe, 07-19-2024, 01:59 PM
0 responses
75 views
0 likes
 Last Post ithe
by ithe
07-19-2024, 01:59 PM  
Eufy Floodlight Cam 2 Pro Dead. Power Supply issue... by KYBOSH
Started by KYBOSH, 07-01-2024, 06:54 AM
19 responses
496 views
0 likes
 Last Post sam_sam_sam
by sam_sam_sam
07-13-2024, 09:14 PM  
Can i change this to tny277? by bearjumpjump
Started by bearjumpjump, 07-11-2024, 12:11 PM
0 responses
72 views
0 likes
 Last Post bearjumpjump
by bearjumpjump
07-11-2024, 12:11 PM  
Sfx 380watt failed mod by bearjumpjump
Started by bearjumpjump, 07-09-2024, 12:18 AM
2 responses
82 views
0 likes
 Last Post bearjumpjump
by bearjumpjump
07-09-2024, 09:04 AM  
Rosewill Tokamak 1200w blown mosfet 5R199P by nubie
Started by nubie, 07-02-2024, 05:33 PM
2 responses
105 views
0 likes
 Last Post CapLeaker
by CapLeaker
07-04-2024, 04:55 PM  
FSP HP600S ATX power supply component identification. by unimatrix93
Started by unimatrix93, 06-12-2024, 03:23 AM
6 responses
216 views
0 likes
 Last Post harp
by harp
07-02-2024, 10:11 AM  
fault in laptop charger 65 W lenovo usb c (adlx65ycc3d) by claws77
Started by claws77, 06-15-2024, 04:49 AM
12 responses
291 views
0 likes
 Last Post claws77
by claws77
07-01-2024, 04:37 AM  
Cyberpower CP900EPFCLCD - F03 Error by Shinjinkun
Started by Shinjinkun, 03-28-2022, 03:52 PM
65 responses
16,504 views
0 likes
 Last Post fmiku
by fmiku
06-30-2024, 07:33 AM  
Welder not turning on - Learning by Olles4
Started by Olles4, 05-18-2024, 01:22 PM
63 responses
945 views
0 likes
 Last Post CapLeaker
by CapLeaker
06-27-2024, 08:17 PM  
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