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
585,247 views
0 reactions
 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
1,377,006 views
0 reactions
 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
12,363 views
0 reactions
 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
7,409 views
0 reactions
 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
124,748 views
0 reactions
 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
68,884 views
0 reactions
 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
220,864 views
0 reactions
 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
434,932 views
0 reactions
 Last Post jvyt
by jvyt
06-25-2009, 01:40 AM
IEC socket w/ caps replacement
by Half-Saint
Started by Half-Saint, 05-10-2018, 12:58 AM
12 responses
2,478 views
0 reactions
 Last Post budm
by budm
05-17-2018, 01:25 PM
Intertek S003IV0600050
by semiRocket
Started by semiRocket, 05-15-2018, 12:15 PM
12 responses
1,641 views
0 reactions
 Last Post Andrew F. Ali
by Andrew F. Ali
05-16-2018, 11:55 AM
Anyone have a TX850W
by Uranium-235
Started by Uranium-235, 05-08-2017, 08:29 AM
9 responses
3,122 views
0 reactions
 Last Post RJARRRPCGP
by RJARRRPCGP
05-14-2018, 09:21 PM
Trouble finding an element on board!
by smaniak
Started by smaniak, 03-30-2018, 01:38 PM
3 responses
1,423 views
0 reactions
 Last Post budm
by budm
05-11-2018, 08:15 PM
Vacon Frequency Converter - repair
by SmartVision
Started by SmartVision, 05-07-2018, 04:48 PM
0 responses
1,188 views
0 reactions
 Last Post SmartVision
by SmartVision
05-07-2018, 04:48 PM
Benq W1070 projector smps
by tibimakai
Started by tibimakai, 03-28-2018, 03:46 PM
43 responses
4,955 views
0 reactions
 Last Post R_J
by R_J
05-06-2018, 09:45 AM
DC to DC Converter Quality - Does it Matter?
by shovenose
Started by shovenose, 05-01-2018, 09:44 AM
7 responses
2,242 views
0 reactions
 Last Post sam_sam_sam
by sam_sam_sam
05-04-2018, 03:40 PM
Dell Precision 490 PSU (N750P-00)
by evilkitty
Started by evilkitty, 04-22-2018, 07:21 AM
6 responses
1,940 views
0 reactions
 Last Post everell
by everell
05-04-2018, 04:17 AM
Enermax EG465AX-VE(G) Thermistor
by olliisit
Started by olliisit, 05-08-2011, 12:14 PM
25 responses
7,141 views
0 reactions
 Last Post sadmed
by sadmed
05-02-2018, 11:38 AM
DPSN-125CP schematic?
by Don K
Started by Don K, 05-01-2018, 09:10 AM
3 responses
2,615 views
0 reactions
 Last Post Don K
by Don K
05-01-2018, 04:50 PM
FSP300-60PNA toasty resistor
by Bungz
Started by Bungz, 04-29-2018, 01:24 PM
7 responses
1,646 views
0 reactions
 Last Post Bungz
by Bungz
05-01-2018, 06:56 AM
Help wanted on a Delta DPS-141CP-1-A power supply.
by Nikolai Tesla
Started by Nikolai Tesla, 06-01-2017, 02:27 PM
7 responses
5,179 views
0 reactions
 Last Post mkstrike2017
by mkstrike2017
04-28-2018, 10:19 PM
help with new psu
by mash104
Started by mash104, 04-21-2018, 08:34 PM
8 responses
1,855 views
0 reactions
 Last Post momaka
by momaka
04-23-2018, 11:58 PM
APC Back-UPS 1300 not charging battery
by sambul83
Started by sambul83, 03-20-2015, 09:39 AM
56 responses
27,202 views
0 reactions
 Last Post yyzmxs
by yyzmxs
04-21-2018, 06:02 PM
Help with component on PSU
by Dannyx
Started by Dannyx, 04-13-2018, 03:01 AM
13 responses
2,339 views
0 reactions
 Last Post Dannyx
by Dannyx
04-20-2018, 03:44 AM
Regulated power supply
by Bterrier
Started by Bterrier, 04-18-2018, 09:47 PM
6 responses
1,314 views
0 reactions
 Last Post Bterrier
by Bterrier
04-19-2018, 07:42 PM
ds2331 battery
by olymbou
Started by olymbou, 04-16-2018, 03:53 PM
2 responses
1,651 views
0 reactions
 Last Post olymbou
by olymbou
04-17-2018, 04:01 PM
APC Back-UPS 1500 erratic behavior
by sambul83
Started by sambul83, 04-12-2018, 07:02 PM
35 responses
5,184 views
0 reactions
 Last Post budm
by budm
04-16-2018, 09:05 PM
Wolf in sheep's clothing - Enermax in a Deer casing
by Dan81
Started by Dan81, 04-10-2018, 03:52 AM
10 responses
1,906 views
0 reactions
 Last Post kaboom
by kaboom
04-15-2018, 11:28 PM
Equivalent thermistor for Cisco switch PSU
by jjne
Started by jjne, 04-11-2018, 03:50 PM
10 responses
1,673 views
0 reactions
 Last Post Curious.George
by Curious.George
04-13-2018, 02:15 AM
Cooler Master G750M High PG power good signal
by hobo2566
Started by hobo2566, 03-31-2018, 04:59 PM
7 responses
2,048 views
0 reactions
 Last Post Agent24
by Agent24
04-11-2018, 12:55 PM
Samsung SMPS
by Burned
Started by Burned, 03-28-2018, 02:21 PM
25 responses
3,999 views
0 reactions
 Last Post vinceroger69
by vinceroger69
04-11-2018, 11:05 AM
Starpower with bad capacitors
by everell
Started by everell, 03-10-2018, 08:29 PM
5 responses
2,036 views
0 reactions
 Last Post momaka
by momaka
04-07-2018, 11:08 PM
Bestec "12Z" returns for polycaps
by everell
Started by everell, 03-20-2018, 05:42 AM
15 responses
3,046 views
0 reactions
 Last Post momaka
by momaka
04-07-2018, 10:16 PM
Fun with fixing I-Micro power supplies
by everell
Started by everell, 02-17-2015, 09:27 AM
109 responses
20,886 views
0 reactions
 Last Post momaka
by momaka
04-05-2018, 07:57 PM
Smpsu ic
by barry wilkins
Started by barry wilkins, 04-02-2018, 03:22 PM
3 responses
1,176 views
0 reactions
 Last Post PeteS in CA
by PeteS in CA
04-04-2018, 12:53 PM
A component code questions ??
by bianchi77
Started by bianchi77, 04-02-2018, 07:45 PM
1 response
1,045 views
0 reactions
 Last Post bianchi77
by bianchi77
04-04-2018, 02:16 AM
A schematic for this power supply ?
by bianchi77
Started by bianchi77, 04-02-2018, 07:36 PM
2 responses
1,121 views
0 reactions
 Last Post bianchi77
by bianchi77
04-04-2018, 02:15 AM
MasterVolt IVO 12/25-3 Marine charger - replaced power fet but now pulsating
by sententia
Started by sententia, 08-06-2015, 12:48 PM
47 responses
9,144 views
0 reactions
 Last Post sententia
by sententia
04-02-2018, 03:57 PM
APC Smart-UPS 1100 Not working flashing Green and Yellow LED'd
by band
Started by band, 03-08-2018, 01:18 PM
4 responses
1,526 views
0 reactions
 Last Post band
by band
04-02-2018, 03:16 PM
"Sima" brand 325W inverter... works currently but...
by eccerr0r
Started by eccerr0r, 03-24-2018, 10:58 AM
6 responses
1,454 views
0 reactions
 Last Post eccerr0r
by eccerr0r
03-28-2018, 03:09 AM
Power adapter from Apple Time Capsule - 0V at output
by andrey_ka
Started by andrey_ka, 02-22-2014, 01:56 PM
30 responses
7,208 views
0 reactions
 Last Post andrey_ka
by andrey_ka
03-27-2018, 12:44 PM
Corsair 400W PSU w/one bad cap
by Mac29
Started by Mac29, 03-17-2018, 12:19 PM
6 responses
1,622 views
0 reactions
 Last Post Stefan Payne
by Stefan Payne
03-19-2018, 10:53 AM
Dead Dell power supply
by everell
Started by everell, 12-08-2017, 03:45 AM
9 responses
3,184 views
0 reactions
 Last Post drhicom
by drhicom
03-18-2018, 09:07 AM
Toshiba TV low voltage on PSU
by DjKrish
Started by DjKrish, 02-28-2018, 04:50 AM
19 responses
2,257 views
0 reactions
 Last Post DjKrish
by DjKrish
03-14-2018, 06:27 AM
overvoltage to a circuit board lamp
by Cornboats
Started by Cornboats, 02-27-2018, 03:35 AM
72 responses
6,148 views
0 reactions
 Last Post Cornboats
by Cornboats
03-14-2018, 04:14 AM
What could make a high pitched whine a PSU?
by Spork Schivago
Started by Spork Schivago, 03-12-2018, 06:56 PM
5 responses
1,508 views
0 reactions
 Last Post Spork Schivago
by Spork Schivago
03-13-2018, 01:36 PM
some dead capacitors in a 9v 2.6A power supply
by RukyCon
Started by RukyCon, 03-03-2017, 03:59 AM
65 responses
9,802 views
0 reactions
 Last Post RukyCon
by RukyCon
03-12-2018, 07:56 AM
Cooler Master RS-500-ACAB-M3
by ciki022
Started by ciki022, 03-10-2018, 05:00 PM
2 responses
1,694 views
0 reactions
 Last Post MHTSOS
by MHTSOS
03-11-2018, 01:35 AM
Liteon PA-3241-02A1
by piernov
Started by piernov, 03-06-2018, 02:29 PM
2 responses
1,660 views
0 reactions
 Last Post CapLeaker
by CapLeaker
03-07-2018, 08:24 PM
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