Troubleshooting Power Supplies and Power Supply Design

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Sticky: List of pin compatible pwm/supervisor PSU ICs by Quaddro Started by Quaddro, 12-06-2019, 02:54 AM	19 responses 12,595 views 0 reactions	Last Post by protocold 10-29-2025, 09:12 PM
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 590,320 views 0 reactions	Last Post 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 1,390,631 views 0 reactions	Last Post by japlytic 09-14-2024, 07:04 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 7,522 views 0 reactions	Last Post 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 124,920 views 0 reactions	Last Post 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 69,015 views 0 reactions	Last Post 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 221,124 views 0 reactions	Last Post 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 435,366 views 0 reactions	Last Post by jvyt 06-25-2009, 01:40 AM
Need help with LED Power Supply Design by EasyGoing1 Started by EasyGoing1, 08-16-2018, 06:47 PM	19 responses 3,425 views 0 reactions	Last Post by EasyGoing1 11-03-2018, 05:40 AM
EVGA G3 series - fan needed. by katfish Started by katfish, 10-24-2018, 08:55 AM	8 responses 1,870 views 0 reactions	Last Post by brethin 11-02-2018, 11:33 PM
Miller 375 Plasma Burt Cap.. by KG7AMV Started by KG7AMV, 07-01-2018, 01:01 AM	55 responses 6,037 views 0 reactions	Last Post by CapLeaker 11-01-2018, 07:19 PM
another G5/661-3350 query by CWB Started by CWB, 01-27-2011, 07:16 PM	21 responses 7,014 views 0 reactions	Last Post by SoporteHR 11-01-2018, 02:35 PM
"Magna" 300W ATX PSU (bad workmanship inside) by Rulycat Started by Rulycat, 10-14-2018, 10:33 AM	15 responses 2,334 views 0 reactions	Last Post by momaka 10-31-2018, 09:18 PM
Xigmatek Tauro 400w, no 5vsb, Unstable Vcc input by Quaddro Started by Quaddro, 10-24-2018, 07:23 PM	8 responses 1,790 views 0 reactions	Last Post by momaka 10-31-2018, 08:52 PM
Fanless Silverstone ST30NF / Etasis EFN-300 caps busted by Exim Started by Exim, 06-29-2015, 04:05 PM	24 responses 7,204 views 0 reactions	Last Post by Behemot 10-31-2018, 01:18 PM
UniFi Switch 24 250W power supply by pfrcom Started by pfrcom, 10-20-2018, 09:33 PM	4 responses 1,896 views 0 reactions	Last Post by seanc 10-28-2018, 10:54 AM
Dell PS-5251-2DFS won't start - no 5VSB by pfrcom Started by pfrcom, 05-26-2016, 12:43 AM	10 responses 4,175 views 0 reactions	Last Post by Behemot 10-28-2018, 05:20 AM
MPJA 10 AMP @ 0 to 30 Volts Switching Power Supply Cap Fault by sam_sam_sam Started by sam_sam_sam, 10-21-2018, 10:02 AM	3 responses 1,457 views 0 reactions	Last Post by sam_sam_sam 10-21-2018, 12:43 PM
Mobility Scooter PSU by Andyd1970 Started by Andyd1970, 10-17-2018, 10:28 AM	1 response 1,202 views 0 reactions	Last Post by eccerr0r 10-17-2018, 02:34 PM
5v rail to high by Drack Started by Drack, 12-27-2016, 08:51 PM	27 responses 3,992 views 0 reactions	Last Post by Drack 10-16-2018, 12:01 PM
PC8044 from HP desktop, exploded ceramics, blasted single FET by Behemot Started by Behemot, 10-07-2018, 01:05 PM	15 responses 2,476 views 0 reactions	Last Post by stj 10-16-2018, 10:55 AM
Obtaining Replacement AC Adapter & Cord for Sony DVD Player by Giacomo Siffredi Started by Giacomo Siffredi, 10-15-2018, 03:00 PM	6 responses 1,491 views 0 reactions	Last Post by R_J 10-16-2018, 09:13 AM
modify a dell server psu to work in a shuttle x pc by KountZERO Started by KountZERO, 10-15-2018, 07:28 AM	0 responses 1,318 views 0 reactions	Last Post by KountZERO 10-15-2018, 07:28 AM
Enermax Revolution87+ 850W high pitched noise by MichR Started by MichR, 10-15-2018, 01:14 AM	0 responses 1,239 views 0 reactions	Last Post by MichR 10-15-2018, 01:14 AM
iMac 2008 (A1224) PSU Dead Primary (good fuses) by pentium Started by pentium, 10-11-2018, 08:17 PM	2 responses 1,486 views 0 reactions	Last Post by pentium 10-12-2018, 07:52 AM
Mac Pro Early 2009 A1289 PSU 614-0454 bad by joaquinmjuan Started by joaquinmjuan, 04-12-2015, 11:52 PM	6 responses 5,496 views 0 reactions	Last Post by kings79 10-08-2018, 06:23 PM
Samsung 245B 00173A No power No blue LED by redoxy Started by redoxy, 09-16-2018, 07:37 PM	46 responses 5,887 views 0 reactions	Last Post by redoxy 10-07-2018, 09:15 PM
Dc power supply blow up! (QW-MS3010D) by Oroshi Started by Oroshi, 09-30-2018, 10:02 AM	17 responses 4,860 views 0 reactions	Last Post by sam_sam_sam 10-06-2018, 03:21 PM
Weak 5V line, Nexus RX-5300 530W modular PSU. by PopcornMobo Started by PopcornMobo, 10-05-2018, 08:26 AM	9 responses 1,736 views 0 reactions	Last Post by PopcornMobo 10-06-2018, 07:47 AM
Imac 27" 2011 POwer supply by Eleways Started by Eleways, 10-06-2018, 04:06 AM	1 response 1,214 views 0 reactions	Last Post by Andrew F. Ali 10-06-2018, 06:14 AM
Sparkle Power Int. LTD. FPS400-60GN (REV 1) – recapping (with cap list) by momaka Started by momaka, 10-02-2018, 12:38 PM	2 responses 1,325 views 0 reactions	Last Post by momaka 10-05-2018, 04:07 PM
Delta ATX PSU refuse to start by sebr Started by sebr, 09-29-2018, 10:20 AM	2 responses 1,345 views 0 reactions	Last Post by PopcornMobo 10-05-2018, 10:32 AM
EPCOS SMPS Transformer substitute by dkneyle Started by dkneyle, 04-02-2017, 07:06 PM	18 responses 5,394 views 0 reactions	Last Post by dkneyle 10-02-2018, 05:06 PM
Replacements for Nichicon PR and PL in PSU by Y. Signal Started by Y. Signal, 09-29-2018, 02:16 AM	0 responses 1,242 views 0 reactions	Last Post by Y. Signal 09-29-2018, 02:16 AM
PSU with KME capacitors, recap or not? by Y. Signal Started by Y. Signal, 09-27-2018, 05:14 PM	4 responses 2,962 views 0 reactions	Last Post by Y. Signal 09-28-2018, 07:14 AM
Replacing Nichicon PJ and PF in a PSU by Y. Signal Started by Y. Signal, 09-23-2018, 12:21 PM	5 responses 2,370 views 0 reactions	Last Post by momaka 09-28-2018, 02:08 AM
Trying to find correct input/output voltages for an inverter transformer. by james28909 Started by james28909, 09-25-2018, 07:43 PM	9 responses 1,518 views 0 reactions	Last Post by budm 09-27-2018, 12:01 AM
AT2005B psu modification by wall Started by wall, 09-19-2018, 08:52 AM	5 responses 2,803 views 0 reactions	Last Post by momaka 09-23-2018, 03:23 AM
Erbauer 18-24v battery charger by Cornboats Started by Cornboats, 09-17-2018, 10:04 AM	8 responses 2,017 views 0 reactions	Last Post by Cornboats 09-21-2018, 02:01 AM
LG-42d69u no 24v output from smps E59670 by JesusJones Started by JesusJones, 09-10-2018, 10:37 AM	9 responses 3,964 views 0 reactions	Last Post by JesusJones 09-20-2018, 03:40 PM
iiyama PSU repair from LCD monitor [fixed] by tom66 Started by tom66, 07-27-2018, 11:19 AM	19 responses 5,305 views 0 reactions	Last Post by ivanoxx 09-18-2018, 10:13 PM
Delta DPS-250AP-8 repair by mitchw Started by mitchw, 09-06-2017, 04:29 PM	14 responses 5,185 views 0 reactions	Last Post by mitchw 09-18-2018, 09:10 PM
Corsair CMPSU-400CX blowing it's fuse by bocca Started by bocca, 10-03-2012, 12:57 AM	6 responses 3,732 views 0 reactions	Last Post by momaka 09-17-2018, 02:10 PM
Magnavox DRV power supply SMPS by johnfin Started by johnfin, 10-23-2017, 07:01 AM	181 responses 20,905 views 0 reactions	Last Post by budm 09-13-2018, 12:20 AM
Vestel 17IPS71 by arabou Started by arabou, 09-11-2018, 03:35 PM	1 response 1,459 views 0 reactions	Last Post by Andrew F. Ali 09-12-2018, 10:20 AM
Just broke a monitor PSU and have some questions by wkx Started by wkx, 09-07-2018, 11:16 PM	5 responses 1,753 views 0 reactions	Last Post by momaka 09-12-2018, 10:01 AM
KB Power Supply 120-12-8 repair by CapLeaker Started by CapLeaker, 09-02-2018, 03:14 PM	14 responses 2,832 views 0 reactions	Last Post by CapLeaker 09-09-2018, 07:23 PM
Antec cp-850 by indy_chuck Started by indy_chuck, 08-26-2018, 06:33 PM	5 responses 2,369 views 0 reactions	Last Post by momaka 09-02-2018, 03:12 PM

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