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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
579,478 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
1,328,878 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
11,901 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
124,641 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
433,640 views
0 likes
 Last Post jvyt
by jvyt
06-25-2009, 01:40 AM  
DELTA DPS-250GB-4 by Pizzata
Started by Pizzata, 01-22-2025, 09:20 AM
4 responses
28 views
0 likes
 Last Post Pizzata
by Pizzata
02-26-2025, 10:18 AM  
Treadmill controller (zipro dream (?)) - PCB-ZYXK9- 1111-V1.2.PCB not working by wzamoyski
Started by wzamoyski, 02-26-2025, 02:29 AM
0 responses
20 views
0 likes
 Last Post wzamoyski
by wzamoyski
02-26-2025, 02:29 AM  
Apple 24" iMac A1225 Liteon PA-3241-02A1 schematic and boardview by MikeCebula
Started by MikeCebula, 11-04-2023, 10:18 PM
2 responses
700 views
0 likes
 Last Post fichamba
by fichamba
02-24-2025, 02:36 PM  
Looking for Schumacher INC-700A Schematic by bob_2020
Started by bob_2020, 01-13-2025, 09:36 PM
15 responses
163 views
0 likes
 Last Post bob_2020
by bob_2020
02-23-2025, 10:48 PM  
FSP300-60GTF - no 5VSB, PS_ON; 5VSB carnage by kotel studios
Started by kotel studios, 02-23-2025, 11:47 AM
1 response
31 views
0 likes
 Last Post kotel studios
by kotel studios
02-23-2025, 01:30 PM  
PLUG TWICE AND AUTO POWER ON by Neil Iori Cuevas
Started by Neil Iori Cuevas, 02-22-2025, 10:25 AM
1 response
30 views
0 likes
 Last Post momaka
by momaka
02-22-2025, 01:33 PM  
Weird behavior on 3.3V rail of a CORSAIR CX600 by bimole
Started by bimole, 02-13-2025, 04:49 AM
6 responses
104 views
0 likes
 Last Post momaka
by momaka
02-22-2025, 05:53 AM  
Mackie Th15 SMPS low Vout by madan1
Started by madan1, 02-16-2025, 04:15 PM
13 responses
117 views
0 likes
 Last Post momaka
by momaka
02-22-2025, 05:40 AM  
Delta Source - ADP-30GF by veigalex
Started by veigalex, 02-14-2025, 10:58 AM
3 responses
75 views
0 likes
 Last Post momaka
by momaka
02-20-2025, 10:49 AM  
Corsair CV650 output coil by andyc
Started by andyc, 01-20-2025, 05:29 AM
8 responses
113 views
0 likes
 Last Post momaka
by momaka
02-19-2025, 03:39 PM  
Audio Linear Power Supply (LPS) by Bugmanscj
Started by Bugmanscj, 02-17-2025, 08:50 AM
7 responses
49 views
0 likes
 Last Post Bugmanscj
by Bugmanscj
02-19-2025, 09:53 AM  
Help identify please LTTH806RF5 by sikocan
Started by sikocan, 02-17-2025, 09:54 PM
2 responses
43 views
0 likes
 Last Post sikocan
by sikocan
02-18-2025, 09:00 PM  
Random Shutdowns/Startup Failure with Corsair SFX 450 by h0m3w0rk
Started by h0m3w0rk, 02-09-2025, 03:19 AM
4 responses
78 views
0 likes
 Last Post stj
by stj
02-18-2025, 10:19 AM  
Help me understand this linear supply circuit. by прямо
Started by прямо, 02-17-2025, 11:09 PM
1 response
34 views
0 likes
 Last Post прямо
by прямо
02-18-2025, 01:29 AM  
EVGA 430W PSU Correct voltages but computer won't turn on by objecttothis
Started by objecttothis, 02-08-2025, 11:19 AM
2 responses
44 views
0 likes
 Last Post momaka
by momaka
02-17-2025, 10:53 AM  
XFX XPS 650w 3XS PSU making Ticking/clicking sound by Solvik
Started by Solvik, 02-13-2025, 02:43 PM
4 responses
64 views
0 likes
 Last Post momaka
by momaka
02-17-2025, 09:59 AM  
Socomec ITY2-TW100B ITYS 10KvA UPS by LemoneyF
Started by LemoneyF, 02-14-2025, 10:09 PM
0 responses
19 views
0 likes
 Last Post LemoneyF
by LemoneyF
02-14-2025, 10:09 PM  
CyberPower 1350AVR and 1500AVR - Repair by pete_c
Started by pete_c, 05-06-2022, 04:10 PM
25 responses
3,210 views
0 likes
 Last Post steve_l
by steve_l
02-12-2025, 02:21 PM  
BOSE solo sound system II ,smps power supply fail by iperzipsp
Started by iperzipsp, 02-03-2025, 12:38 PM
1 response
54 views
0 likes
 Last Post iperzipsp
by iperzipsp
02-05-2025, 03:38 AM  
A Dead/DOA Gigabyte GP-P450b 450W ATX PSU by momaka
Started by momaka, 01-26-2022, 03:26 AM
15 responses
7,050 views
0 likes
 Last Post TotoWood
by TotoWood
02-04-2025, 02:42 PM  
Need help in identifying component, marking SEFUSE D5T4YB by shade02751287
Started by shade02751287, 01-31-2025, 12:58 AM
0 responses
38 views
0 likes
 Last Post shade02751287
by shade02751287
01-31-2025, 12:58 AM  
Troubleshooting half-bridge smps by madan1
Started by madan1, 01-23-2025, 06:05 AM
1 response
64 views
0 likes
 Last Post madan1
by madan1
01-28-2025, 10:23 AM  
"Dead" iMac Intel EMC2389: Bad PSU or Logicboard? by berniedd
Started by berniedd, 10-12-2015, 06:06 AM
6 responses
4,283 views
0 likes
 Last Post stj
by stj
01-28-2025, 08:14 AM  
Monitor Audio RSW12 - Green light but no audio by MOSSEP
Started by MOSSEP, 01-26-2025, 08:18 AM
1 response
43 views
0 likes
 Last Post sam_sam_sam
by sam_sam_sam
01-26-2025, 05:57 PM  
PSU killing components? by grss1982
Started by grss1982, 01-17-2025, 04:12 AM
2 responses
82 views
0 likes
 Last Post CapLeaker
by CapLeaker
01-26-2025, 05:20 AM  
Chieftec (Delta) GPS-450AA-101 A repair and possible upgrade options? by nick122
Started by nick122, 01-05-2025, 04:31 PM
7 responses
122 views
0 likes
 Last Post nick122
by nick122
01-24-2025, 09:03 PM  
Cooler Master 500W atx psu repair. Total cannot start at all by anikin73
Started by anikin73, 07-07-2024, 07:06 AM
18 responses
613 views
0 likes
 Last Post Don4321
by Don4321
01-23-2025, 09:26 AM  
LD A200WL19VDC mini pc psu - need identify controller by ktmmotocross
Started by ktmmotocross, 01-21-2025, 01:53 PM
7 responses
56 views
0 likes
 Last Post ktmmotocross
by ktmmotocross
01-22-2025, 06:53 AM  
CyberPower 1500AVR Not Charging by Weatherson
Started by Weatherson, 06-09-2020, 02:45 AM
15 responses
4,812 views
0 likes
 Last Post bmasephol
by bmasephol
01-18-2025, 01:24 PM  
HP Z840 workstation power supply clicking noise by NConstantinou
Started by NConstantinou, 12-25-2024, 02:24 AM
4 responses
87 views
0 likes
 Last Post NConstantinou
by NConstantinou
01-18-2025, 04:16 AM  
Advice on rewiring this stepup transformer? by artvandalai
Started by artvandalai, 01-14-2025, 01:00 AM
1 response
42 views
0 likes
 Last Post stj
by stj
01-14-2025, 09:34 AM  
Corsair RM 750 blown schottky diode near ES1DF by iyas132
Started by iyas132, 12-30-2024, 01:34 AM
2 responses
102 views
0 likes
 Last Post iyas132
by iyas132
01-08-2025, 12:20 AM  
[FIXED] XFX Core Edition Pro 450W ticking noise by ntoskrnl
Started by ntoskrnl, 04-19-2022, 10:36 AM
2 responses
773 views
0 likes
 Last Post fenderjaguar
by fenderjaguar
01-07-2025, 04:30 PM  
Fender Mustang non valve guitar amp - owner connected 110v amp to 220v. by t4796
Started by t4796, 10-25-2024, 06:59 PM
7 responses
110 views
0 likes
 Last Post t4796
by t4796
01-03-2025, 11:17 PM  
Anyone know how to take apart a Fluke T100 Voltage Tester without damaging it? by cheeky2
Started by cheeky2, 06-04-2024, 07:21 AM
10 responses
336 views
0 likes
 Last Post cheeky2
by cheeky2
01-03-2025, 03:25 AM  
Cambridge Audio Stream Magic 6 - Power Supply by smurtz
Started by smurtz, 12-20-2024, 02:40 PM
10 responses
212 views
0 likes
 Last Post smurtz
by smurtz
01-01-2025, 01:43 PM  
Antec VP-600P and NE550M dead by s_henya
Started by s_henya, 12-03-2024, 10:00 PM
3 responses
88 views
0 likes
 Last Post прямо
by прямо
01-01-2025, 02:02 AM  
18VDC PSU has dropped to 10v - ZD-915 desoldering station by phreak97
Started by phreak97, 07-30-2019, 06:46 AM
79 responses
19,572 views
0 likes
 Last Post petehall347
by petehall347
12-31-2024, 09:09 PM  
Cooler Master MWE Gold 650W (MPY-6501-AFAAG) randomly won't turn on by Gold007
Started by Gold007, 04-06-2021, 07:51 AM
19 responses
4,790 views
0 likes
 Last Post Windows8RTMUser
by Windows8RTMUser
12-30-2024, 03:17 AM  
searching for a schematic adp-30hf by semerchet
Started by semerchet, 09-28-2018, 02:02 AM
1 response
1,204 views
0 likes
 Last Post Tmo882
by Tmo882
12-29-2024, 06:10 AM  
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