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
581,126 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
1,339,307 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
12,165 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
7,391 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
124,704 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
68,858 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
220,719 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
434,152 views
0 reactions
 Last Post jvyt
by jvyt
06-25-2009, 01:40 AM
Psu brands and series
by shovenose
Started by shovenose, 09-15-2010, 11:18 PM
9 responses
3,688 views
0 reactions
 Last Post 370forlife
by 370forlife
09-20-2010, 01:24 PM
Bridge rectifier vs four diodes
by shovenose
Started by shovenose, 09-20-2010, 05:50 AM
11 responses
6,858 views
0 reactions
 Last Post PCBONEZ
by PCBONEZ
09-20-2010, 11:55 AM
ID'ing a device
by JEWilson
Started by JEWilson, 09-18-2010, 07:17 PM
2 responses
2,470 views
0 reactions
 Last Post jetadm123
by jetadm123
09-18-2010, 08:01 PM
improve cheapo psu
by shovenose
Started by shovenose, 09-13-2010, 01:20 PM
20 responses
6,084 views
0 reactions
 Last Post shovenose
by shovenose
09-15-2010, 06:08 PM
Audio is on then off - windows sticky
by OneOneOne
Started by OneOneOne, 09-13-2010, 03:26 AM
13 responses
3,361 views
0 reactions
 Last Post Wrog
by Wrog
09-13-2010, 10:18 PM
need help
by geep6
Started by geep6, 09-13-2010, 01:51 PM
5 responses
2,947 views
0 reactions
 Last Post Ken256
by Ken256
09-13-2010, 07:25 PM
Improving power supply efficiency?
by Ken256
Started by Ken256, 09-08-2010, 08:51 PM
1 response
2,519 views
0 reactions
 Last Post POM_MJ
by POM_MJ
09-08-2010, 10:55 PM
Self-oscillating mains switching power supply topologies
by japlytic
Started by japlytic, 09-08-2010, 04:42 AM
0 responses
2,866 views
0 reactions
 Last Post japlytic
by japlytic
09-08-2010, 04:42 AM
Diy Power
by Aleks.J
Started by Aleks.J, 09-07-2010, 12:37 PM
0 responses
2,401 views
0 reactions
 Last Post Aleks.J
by Aleks.J
09-07-2010, 12:37 PM
recap coolmax cu-500b
by shovenose
Started by shovenose, 09-06-2010, 02:33 PM
1 response
2,576 views
0 reactions
 Last Post 370forlife
by 370forlife
09-06-2010, 10:34 PM
Need A6351 I.C.
by surfwatcher
Started by surfwatcher, 09-04-2010, 05:45 PM
5 responses
4,540 views
0 reactions
 Last Post surfwatcher
by surfwatcher
09-06-2010, 04:19 PM
MS-TECH SP-680 troubleshooting
by yokoono
Started by yokoono, 09-03-2010, 07:16 AM
2 responses
2,584 views
0 reactions
 Last Post yokoono
by yokoono
09-04-2010, 04:11 AM
LiteOn 1000W Model: PA-5102-1-LF Part no. 614-0336
by yomamaphat
Started by yomamaphat, 06-06-2010, 10:59 PM
12 responses
6,155 views
0 reactions
 Last Post Toasty
by Toasty
09-03-2010, 11:24 AM
SMPS in Linear Regulators
by Tioleco
Started by Tioleco, 09-02-2010, 07:17 PM
3 responses
2,667 views
0 reactions
 Last Post MXM
by MXM
09-03-2010, 11:20 AM
Caps for Samsung Plasma Power Supply
by Mantis
Started by Mantis, 08-30-2010, 11:16 AM
2 responses
3,474 views
0 reactions
 Last Post retiredcaps
by retiredcaps
09-03-2010, 10:01 AM
Low ESR capacitors in Linear Power Supply
by Tioleco
Started by Tioleco, 09-01-2010, 03:27 PM
4 responses
4,052 views
0 reactions
 Last Post PCBONEZ
by PCBONEZ
09-02-2010, 09:31 AM
Wanna see a power supply with GOOD Fujhyyu caps??
by Th3_uN1Qu3
Started by Th3_uN1Qu3, 08-29-2010, 07:16 PM
27 responses
7,279 views
0 reactions
 Last Post Th3_uN1Qu3
by Th3_uN1Qu3
09-02-2010, 09:21 AM
DirecTiVo Power Supply Caps
by moonchilddave
Started by moonchilddave, 09-01-2010, 04:51 PM
3 responses
3,446 views
0 reactions
 Last Post moonchilddave
by moonchilddave
09-01-2010, 09:12 PM
AOpen burning coil (secondary)
by relkin67
Started by relkin67, 08-29-2010, 08:03 AM
22 responses
6,742 views
0 reactions
 Last Post PCBONEZ
by PCBONEZ
09-01-2010, 07:34 AM
Snap in Capacitors
by mwturtle1
Started by mwturtle1, 06-12-2010, 12:58 PM
34 responses
17,280 views
0 reactions
 Last Post seanc
by seanc
08-30-2010, 11:13 AM
PC Restarting/ Shutting off abruptly.
by bhvm
Started by bhvm, 07-15-2010, 11:02 PM
158 responses
37,188 views
0 reactions
 Last Post PCBONEZ
by PCBONEZ
08-29-2010, 05:33 PM
apc smart-ups voltage problems
by NoName
Started by NoName, 10-01-2009, 01:52 AM
2 responses
5,673 views
0 reactions
 Last Post Master Beer
by Master Beer
08-26-2010, 05:19 AM
Building a SMPS for an audio amplifier - some pointers required
by Th3_uN1Qu3
Started by Th3_uN1Qu3, 07-29-2010, 04:12 PM
5 responses
6,312 views
0 reactions
 Last Post Th3_uN1Qu3
by Th3_uN1Qu3
08-24-2010, 09:22 AM
Cap Numbers
by DaGeo
Started by DaGeo, 08-22-2010, 09:59 AM
3 responses
2,442 views
0 reactions
 Last Post retiredcaps
by retiredcaps
08-22-2010, 09:31 PM
dead arcade (peter chou) power supply
by bluto
Started by bluto, 06-13-2010, 03:04 AM
27 responses
15,823 views
0 reactions
 Last Post Toasty
by Toasty
08-19-2010, 11:38 PM
First arcade machines to use switching (not linear) power supplies
by japlytic
Started by japlytic, 08-19-2010, 01:14 AM
1 response
2,438 views
0 reactions
 Last Post stj
by stj
08-19-2010, 05:40 PM
Antec Earthwatts 380W +5VSB failure, wont turn on
by Leopard
Started by Leopard, 03-11-2010, 12:31 PM
18 responses
9,796 views
0 reactions
 Last Post Toasty
by Toasty
08-19-2010, 02:22 AM
PSU switches off when turn off Desk Lamp
by Fizzycapola2
Started by Fizzycapola2, 03-09-2007, 08:02 PM
8 responses
4,336 views
0 reactions
 Last Post unolampshades
by unolampshades
08-17-2010, 01:30 AM
gateway notebook adapter
by labyrinth00
Started by labyrinth00, 08-12-2010, 06:15 AM
5 responses
4,897 views
0 reactions
 Last Post labyrinth00
by labyrinth00
08-15-2010, 10:16 AM
Bliss A-394 300W SFX
by c_hegge
Started by c_hegge, 08-13-2010, 12:03 AM
4 responses
3,716 views
0 reactions
 Last Post 370forlife
by 370forlife
08-13-2010, 10:17 PM
Antec EA 380
by Akaister
Started by Akaister, 08-10-2010, 04:31 PM
7 responses
3,712 views
0 reactions
 Last Post seanc
by seanc
08-11-2010, 02:19 PM
Xerox WorkCentre P220
by smason
Started by smason, 08-09-2010, 09:12 PM
3 responses
3,906 views
0 reactions
 Last Post smason
by smason
08-10-2010, 09:21 PM
Stumped this weird G4 power supply problem
by JOHNBOY
Started by JOHNBOY, 05-27-2010, 02:17 AM
108 responses
19,937 views
0 reactions
 Last Post JOHNBOY
by JOHNBOY
08-10-2010, 01:48 AM
Braview PSU fraud.
by cheese007
Started by cheese007, 08-03-2010, 05:08 PM
18 responses
5,774 views
0 reactions
 Last Post Khron
by Khron
08-04-2010, 12:49 PM
Operation of the 5VSB system?
by Per Hansson
Started by Per Hansson, 07-24-2010, 10:33 AM
20 responses
10,868 views
0 reactions
 Last Post Per Hansson
by Per Hansson
08-01-2010, 03:11 PM
Printed board polarity correct? How can I tell?
by kiddznet
Started by kiddznet, 07-30-2010, 07:30 PM
6 responses
3,162 views
0 reactions
 Last Post 370forlife
by 370forlife
07-31-2010, 07:14 AM
Which gets hotter???
by everell
Started by everell, 07-21-2010, 08:16 PM
7 responses
3,394 views
0 reactions
 Last Post Th3_uN1Qu3
by Th3_uN1Qu3
07-29-2010, 04:49 AM
-12v & -5v question
by uligli
Started by uligli, 07-24-2010, 06:35 AM
15 responses
9,733 views
0 reactions
 Last Post uligli
by uligli
07-28-2010, 03:57 PM
Which of these psus is the safest?
by goodpsusearch
Started by goodpsusearch, 11-03-2009, 04:21 PM
142 responses
48,048 views
0 reactions
 Last Post POM_MJ
by POM_MJ
07-28-2010, 10:19 AM
Troubleshooting APC UPS Inverter
by Sparky999
Started by Sparky999, 07-24-2010, 02:38 PM
11 responses
14,689 views
0 reactions
 Last Post Bubbanacious
by Bubbanacious
07-26-2010, 07:58 AM
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