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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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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
579,494 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
1,328,970 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
11,905 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
124,643 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
220,547 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
433,641 views
0 likes
 Last Post jvyt
by jvyt
06-25-2009, 01:40 AM  
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  
Searching for Weltrend part by jimflan
Started by jimflan, 08-23-2023, 07:26 AM
2 responses
542 views
0 likes
 Last Post jimflan
by jimflan
08-24-2023, 08:10 AM  
Schematics and service manual to Powec PMP3.24 by kjells
Started by kjells, 08-24-2023, 06:38 AM
0 responses
445 views
0 likes
 Last Post kjells
by kjells
08-24-2023, 06:38 AM  
Optoma Hd146x with bad powersupply by debruina
Started by debruina, 08-22-2023, 12:05 PM
4 responses
2,019 views
0 likes
 Last Post CapLeaker
by CapLeaker
08-23-2023, 01:21 PM  
Thermaltake TR2 750W -fixed 5v stby now +5v reads low and no 12v by rodd
Started by rodd, 08-11-2023, 12:58 PM
20 responses
1,527 views
0 likes
 Last Post labello
by labello
08-22-2023, 09:01 AM  
A "nice" YoungYear unit? by bauto601
Started by bauto601, 11-16-2018, 06:28 PM
44 responses
7,739 views
0 likes
 Last Post bauto601
by bauto601
08-20-2023, 03:18 AM  
APC UPS units - troubleshooting by axlmastr
Started by axlmastr, 05-06-2006, 12:11 PM
132 responses
72,557 views
0 likes
 Last Post csh
by csh
08-19-2023, 11:43 PM  
Schematic for Lenovo PCG010 power supply by NiroPall
Started by NiroPall, 07-26-2023, 11:35 PM
3 responses
854 views
0 likes
 Last Post prashants
by prashants
08-18-2023, 08:04 AM  
LC Power LC420H-12-US (office series) rebuild by Pentium4
Started by Pentium4, 08-04-2023, 11:00 PM
9 responses
884 views
0 likes
 Last Post momaka
by momaka
08-18-2023, 05:57 AM  
Solytech SL-8360EPS analysis + mods by Pentium4
Started by Pentium4, 08-04-2023, 06:21 PM
7 responses
762 views
0 likes
 Last Post lti
by lti
08-17-2023, 09:19 PM  
DELL Optiplex 760 power supply issue by jazzman72
Started by jazzman72, 07-20-2023, 12:42 PM
20 responses
1,674 views
0 likes
 Last Post CapLeaker
by CapLeaker
08-16-2023, 06:23 PM  
Mad Dog Multimedia (Super Flower) MD-500SCPS by Pentium4
Started by Pentium4, 12-13-2021, 09:24 PM
15 responses
3,261 views
0 likes
 Last Post momaka
by momaka
08-15-2023, 06:05 AM  
Huntkey PSU HK340-72fp Problem by PapaFi
Started by PapaFi, 06-06-2020, 07:30 AM
1 response
1,577 views
0 likes
 Last Post EonFlask
by EonFlask
08-14-2023, 05:08 PM  
Dell laptop LA90PE0-01 charger repair by Dannyx
Started by Dannyx, 01-31-2017, 12:00 PM
27 responses
18,259 views
0 likes
 Last Post islam_asker
by islam_asker
08-14-2023, 04:29 AM  
Hayward PS dual voltage only putting out 24v no more 12v by repair-it
Started by repair-it, 10-21-2022, 06:07 PM
3 responses
1,202 views
0 likes
 Last Post farcouet
by farcouet
08-12-2023, 04:12 PM  
is there power inverter from 24vdc to 48vac ? by Wolf1977
Started by Wolf1977, 08-06-2023, 12:25 PM
10 responses
774 views
0 likes
 Last Post Wolf1977
by Wolf1977
08-09-2023, 04:36 PM  
typical "outrush" NTCs in inverters? by eccerr0r
Started by eccerr0r, 08-04-2023, 04:00 PM
3 responses
495 views
0 likes
 Last Post eccerr0r
by eccerr0r
08-07-2023, 07:39 AM  
Inverter Welder Strangeness by Crystaleyes
Started by Crystaleyes, 03-27-2023, 04:04 PM
97 responses
7,967 views
0 likes
 Last Post Crystaleyes
by Crystaleyes
08-06-2023, 06:29 PM  
Battery charger - STIHL AL 300 by YellowJacket
Started by YellowJacket, 08-02-2023, 06:18 AM
26 responses
3,183 views
0 likes
 Last Post YellowJacket
by YellowJacket
08-05-2023, 12:33 PM  
Topower TOP-650PM by Pentium4
Started by Pentium4, 03-31-2014, 05:52 PM
4 responses
3,158 views
0 likes
 Last Post Pentium4
by Pentium4
08-04-2023, 05:21 AM  
industrial 24Vdc Xenon strobe light troubleshooting by g0v
Started by g0v, 08-03-2023, 12:33 PM
4 responses
542 views
0 likes
 Last Post g0v
by g0v
08-03-2023, 08:34 PM  
SilverStone UC01 USB Power Adapter by alindumitru46
Started by alindumitru46, 05-29-2023, 04:22 AM
2 responses
1,099 views
0 likes
 Last Post alindumitru46
by alindumitru46
08-03-2023, 01:19 PM  
ICE3B0365J Troubleshooting (W200 Sub) by SFB
Started by SFB, 07-10-2023, 05:48 AM
57 responses
4,127 views
0 likes
 Last Post SFB
by SFB
08-01-2023, 06:38 PM  
Nvr supply Delta DPS-300AB-81B circuit by alltvrepairs
Started by alltvrepairs, 07-31-2023, 08:11 AM
2 responses
543 views
0 likes
 Last Post CapLeaker
by CapLeaker
07-31-2023, 02:40 PM  
dewalt battery powered radio - no power at board by geoff69
Started by geoff69, 07-20-2023, 12:47 AM
19 responses
937 views
0 likes
 Last Post geoff69
by geoff69
07-27-2023, 11:03 AM  
Cooler Master 1200W Silent Pro Gold - Bad power switch by tony359
Started by tony359, 06-18-2023, 11:42 AM
40 responses
3,181 views
0 likes
 Last Post tony359
by tony359
07-27-2023, 10:00 AM  
Tyco spi270f4b24 ATX supply repair tips (not starting) by Dannyx
Started by Dannyx, 11-23-2018, 11:25 AM
24 responses
4,384 views
0 likes
 Last Post lpraderi
by lpraderi
07-25-2023, 12:56 PM  
614-0454 dps-980bp failing by lazaro.089
Started by lazaro.089, 07-16-2023, 10:31 PM
3 responses
555 views
0 likes
 Last Post CapLeaker
by CapLeaker
07-17-2023, 07:05 PM  
PC Power & Cooling Silencer 750W SLI only 0.10v on Green wire. by nubie
Started by nubie, 07-06-2023, 11:15 AM
6 responses
895 views
0 likes
 Last Post nubie
by nubie
07-11-2023, 08:50 AM  
Need help diode smd mark HS10 not fond by Gentian
Started by Gentian, 07-08-2023, 11:10 PM
5 responses
573 views
0 likes
 Last Post Gentian
by Gentian
07-09-2023, 01:38 PM  
Yamaha SY85 power board 220v or 110v? by maleksa
Started by maleksa, 07-01-2023, 08:49 PM
4 responses
622 views
0 likes
 Last Post maleksa
by maleksa
07-05-2023, 11:27 PM  
Converting 12VDC transformer to 12VAC by sansonet
Started by sansonet, 06-29-2023, 03:20 PM
11 responses
857 views
0 likes
 Last Post sansonet
by sansonet
07-01-2023, 06:08 AM  
12v/5v power supply -no power out by playit
Started by playit, 06-25-2023, 01:17 AM
22 responses
3,402 views
0 likes
 Last Post RukyCon
by RukyCon
06-30-2023, 08:31 PM  
Identify pwm sot23-6 marked 6315 by tibd
Started by tibd, 06-29-2023, 05:53 AM
6 responses
697 views
0 likes
 Last Post adamok7
by adamok7
06-29-2023, 07:30 AM  
Reebok ZR7 Treadmill won`t start by Superfurry
Started by Superfurry, 06-29-2023, 05:43 AM
0 responses
471 views
0 likes
 Last Post Superfurry
by Superfurry
06-29-2023, 05:43 AM  
Ego 56V battery charger dead by braxton
Started by braxton, 07-14-2020, 09:47 AM
24 responses
18,971 views
0 likes
 Last Post wtshyman
by wtshyman
06-28-2023, 02:23 PM  
Westward model: 1JYU9B schematic help by Elric
Started by Elric, 06-24-2023, 05:13 AM
14 responses
1,544 views
0 likes
 Last Post stj
by stj
06-27-2023, 09:25 AM  
FAN 007 error at UPS Eaton ( in my case EX 3000 RT ) by x0x0x
Started by x0x0x, 06-26-2023, 11:19 AM
2 responses
1,076 views
0 likes
 Last Post x0x0x
by x0x0x
06-26-2023, 11:23 AM  
EVGA 650G - not powering on by Thainglo
Started by Thainglo, 06-14-2023, 09:40 AM
2 responses
832 views
0 likes
 Last Post Thainglo
by Thainglo
06-25-2023, 07:39 PM  
VESTEL 17PW26-5 Problem by yuuki47
Started by yuuki47, 05-22-2021, 11:32 AM
12 responses
3,726 views
0 likes
 Last Post ioan.onutu
by ioan.onutu
06-25-2023, 05:01 AM  
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