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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
579,595 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
1,329,165 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
11,921 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
7,339 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
124,645 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
68,818 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
220,548 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
433,664 views
0 likes
 Last Post jvyt
by jvyt
06-25-2009, 01:40 AM  
How to troubleshoot a dead psu? by shovenose
Started by shovenose, 10-11-2010, 09:04 AM
12 responses
3,928 views
0 likes
 Last Post 370forlife
by 370forlife
10-13-2010, 04:08 AM  
Protek Power Supply Problems by Bruce_Mowbray
Started by Bruce_Mowbray, 10-08-2010, 08:46 AM
3 responses
3,395 views
0 likes
 Last Post Bruce_Mowbray
by Bruce_Mowbray
10-10-2010, 03:05 PM  
Earthwatts Review by MixMasta
Started by MixMasta, 10-03-2010, 12:25 PM
18 responses
4,717 views
0 likes
 Last Post shovenose
by shovenose
10-10-2010, 02:38 PM  
Misconceptions about ferrite cores by Th3_uN1Qu3
Started by Th3_uN1Qu3, 10-10-2010, 07:11 AM
0 responses
2,245 views
0 likes
 Last Post Th3_uN1Qu3
by Th3_uN1Qu3
10-10-2010, 07:11 AM  
Going to recap this atx power supply by shovenose
Started by shovenose, 10-09-2010, 05:06 PM
6 responses
3,681 views
0 likes
 Last Post goodpsusearch
by goodpsusearch
10-09-2010, 07:25 PM  
Capacitors for SMPS by Tioleco
Started by Tioleco, 10-08-2010, 03:09 PM
2 responses
3,294 views
0 likes
 Last Post Tioleco
by Tioleco
10-08-2010, 07:15 PM  
Dell D550P by bsweasel
Started by bsweasel, 09-22-2010, 03:15 PM
4 responses
3,964 views
0 likes
 Last Post ratdude747
by ratdude747
10-05-2010, 10:48 PM  
BE QUIET! BQT P5-420-S1.3 troubleshooting by yokoono
Started by yokoono, 10-01-2010, 12:23 AM
21 responses
7,291 views
0 likes
 Last Post POM_MJ
by POM_MJ
10-05-2010, 07:39 AM  
One big lol of a diablotek by shovenose
Started by shovenose, 09-20-2010, 08:41 AM
14 responses
5,177 views
0 likes
 Last Post shovenose
by shovenose
09-30-2010, 10:04 PM  
starting a power supply by Lakerat
Started by Lakerat, 09-27-2010, 07:02 AM
2 responses
2,235 views
0 likes
 Last Post PCBONEZ
by PCBONEZ
09-27-2010, 09:36 AM  
Ordering caps to recap power supplies. by shovenose
Started by shovenose, 09-23-2010, 08:29 AM
24 responses
10,458 views
0 likes
 Last Post PCBONEZ
by PCBONEZ
09-25-2010, 05:04 PM  
What is your testing PSU and what's its story? by Th3_uN1Qu3
Started by Th3_uN1Qu3, 09-18-2010, 12:45 PM
37 responses
10,466 views
0 likes
 Last Post momaka
by momaka
09-24-2010, 10:05 PM  
NKL Caps by Rob Northen
Started by Rob Northen, 09-23-2010, 04:33 AM
6 responses
4,929 views
0 likes
 Last Post c_hegge
by c_hegge
09-24-2010, 06:35 AM  
Deer DR-A300ATX by 370forlife
Started by 370forlife, 09-23-2010, 05:51 PM
1 response
4,545 views
0 likes
 Last Post shovenose
by shovenose
09-23-2010, 05:57 PM  
Psu brands and series by shovenose
Started by shovenose, 09-15-2010, 11:18 PM
9 responses
3,687 views
0 likes
 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 likes
 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
2,466 views
0 likes
 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
6,078 views
0 likes
 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
3,354 views
0 likes
 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
2,945 views
0 likes
 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
2,518 views
0 likes
 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 likes
 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
2,399 views
0 likes
 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
2,573 views
0 likes
 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
4,539 views
0 likes
 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
2,582 views
0 likes
 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
6,140 views
0 likes
 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 likes
 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
3,472 views
0 likes
 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
4,044 views
0 likes
 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
7,270 views
0 likes
 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
3,443 views
0 likes
 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
6,737 views
0 likes
 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
17,265 views
0 likes
 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
37,162 views
0 likes
 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
5,667 views
0 likes
 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
6,299 views
0 likes
 Last Post Th3_uN1Qu3
by Th3_uN1Qu3
08-24-2010, 09:22 AM  
Examination of Golden Field ATX-S628 550W peak power PSU by Newbie2
Started by Newbie2, 07-13-2010, 07:27 PM
28 responses
21,401 views
0 likes
 Last Post Newbie2
by Newbie2
08-22-2010, 09:42 PM  
Cap Numbers by DaGeo
Started by DaGeo, 08-22-2010, 09:59 AM
3 responses
2,438 views
0 likes
 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
15,780 views
0 likes
 Last Post Toasty
by Toasty
08-19-2010, 11:38 PM  
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