Troubleshooting Power Supplies and Power Supply Design

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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 587,323 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 1,384,971 views 0 reactions	Last Post 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 12,427 views 0 reactions	Last Post 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 7,429 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 124,770 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 68,889 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 220,923 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 435,012 views 0 reactions	Last Post by jvyt 06-25-2009, 01:40 AM
Please help me find 7 pin smd ic 901 part number in Delta DPS-300AB-76 LED Display Power Supply by Gentian Started by Gentian, 09-27-2025, 11:03 PM	6 responses 146 views 0 reactions	Last Post by R_J 09-29-2025, 06:35 PM
Seasonic B12 BC-550 – barely 2 years old and with BAD CAPS already! by momaka Started by momaka, 03-12-2025, 03:42 PM	5 responses 496 views 0 reactions	Last Post by quicknick 09-29-2025, 06:10 PM
SYMSI70 gas heater, TOP247Y exploded, power supply, snubber network by hikomalek Started by hikomalek, 09-19-2025, 03:30 AM	17 responses 171 views 0 reactions	Last Post by hikomalek 09-29-2025, 05:17 AM
maxipower 400W Dead power supply repair by khalillll Started by khalillll, 09-27-2025, 05:06 AM	3 responses 74 views 0 reactions	Last Post by CapLeaker 09-27-2025, 07:36 AM
APC UPS error P13 by sushilachuthan Started by sushilachuthan, 09-26-2025, 09:00 AM	0 responses 28 views 0 reactions	Last Post by sushilachuthan 09-26-2025, 09:00 AM
XBox One PSU Mosfets by CZFan Started by CZFan, 01-18-2024, 07:10 AM	4 responses 237 views 0 reactions	Last Post by EvilBzyk 09-24-2025, 02:41 AM
A Dead/DOA Gigabyte GP-P450b 450W ATX PSU by momaka Started by momaka, 01-26-2022, 03:26 AM	16 responses 7,258 views 0 reactions	Last Post by Baste 09-22-2025, 02:18 AM
APC Back-ups RS 1500 Dead by AquaSonic Started by AquaSonic, 12-16-2010, 03:22 PM	64 responses 51,529 views 0 reactions	Last Post by FitWizard 09-17-2025, 07:08 PM
Corsair HX1200 connected w EVGA molex cable, 12V pin back feeded to 5V. Anybody has experience in this damages repair? by coinwizx Started by coinwizx, 09-15-2025, 12:46 PM	2 responses 37 views 0 reactions	Last Post by stj 09-16-2025, 06:34 AM
NZXT C850 connected w EVGA molex cable, 12V pin back feeded to 5V. Anybody has experience in this damages repair? by coinwizx Started by coinwizx, 09-15-2025, 12:44 PM	2 responses 23 views 0 reactions	Last Post by stj 09-16-2025, 06:34 AM
Corshair RM750 - doesn't allow for board to turn on by kotel studios Started by kotel studios, 07-20-2025, 05:02 AM	76 responses 773 views 0 reactions	Last Post by stj 09-16-2025, 06:32 AM
Solar Inverter - SMH-II - 2 missing capacitors by Cama Started by Cama, 09-12-2025, 02:50 AM	17 responses 168 views 0 reactions	Last Post by CapLeaker 09-14-2025, 03:22 PM
Replacing resistor fuse in Sony DV charger by corrize Started by corrize, 06-30-2025, 06:59 PM	13 responses 206 views 0 reactions	Last Post by corrize 09-12-2025, 06:17 AM
Burned out PSU Corsiar HX1200 and NZXT C850, connected to wrong Molex/Sata cable from EVGA. by coinwizx Started by coinwizx, 09-09-2025, 03:11 PM	7 responses 62 views 0 reactions	Last Post by stj 09-11-2025, 04:15 AM
Dead corsair VS450 with blown TNY chip (cwt) by zunasthegreat Started by zunasthegreat, 08-30-2025, 03:11 AM	10 responses 139 views 0 reactions	Last Post by Agent24 09-07-2025, 12:59 AM
Delta DPS-800GB Power Supply No Power by torgeson5kqs Started by torgeson5kqs, 09-11-2012, 06:49 PM	41 responses 31,377 views 0 reactions	Last Post by Rainbow 08-28-2025, 07:15 AM
Samsug washing machine. Power supply DC41-00189a board issue by Soulzink Started by Soulzink, 04-19-2025, 06:26 AM	18 responses 617 views 0 reactions	Last Post by Soulzink 08-21-2025, 04:32 PM
Help Needed for PSU Board Identification by lisahamp871 Started by lisahamp871, 08-20-2025, 08:36 AM	2 responses 60 views 0 reactions	Last Post by R_J 08-20-2025, 05:55 PM
JBL Soundbar 2.1 Deep Bass PSU No DC Power Output (Detailed, w/ Schematics) by _AcE_ Started by _AcE_, 08-10-2025, 09:27 AM	1 response 46 views 0 reactions	Last Post by CapLeaker 08-10-2025, 11:13 AM
Transistor replacement for L240AS-00 by Winston Chadwick Started by Winston Chadwick, 08-16-2016, 02:17 PM	14 responses 6,066 views 0 reactions	Last Post by Imalu 08-03-2025, 04:00 PM
op amp circuit function? by Alimash Started by Alimash, 07-31-2025, 07:45 AM	2 responses 70 views 0 reactions	Last Post by Alimash 07-31-2025, 06:58 PM
Samsung bn44-00384a (unknown fried IC) by kogi Started by kogi, 07-15-2025, 12:27 AM	2 responses 48 views 0 reactions	Last Post by Jbeni 07-26-2025, 05:43 PM
ADP-160FR ps4 slim PSU, shuts down under load and has severe coil whine. by Gjackson Started by Gjackson, 01-13-2024, 10:34 AM	32 responses 1,752 views 0 reactions	Last Post by playgoods 07-23-2025, 10:32 PM
Norcold DE-0061 AC/DC power supply inductor? by repair-it Started by repair-it, 07-22-2025, 06:38 PM	5 responses 37 views 0 reactions	Last Post by lotas 07-23-2025, 05:05 PM
Russound CA4 Power Supply Repair by CMCM Started by CMCM, 07-03-2025, 01:12 PM	15 responses 167 views 0 reactions	Last Post by CMCM 07-16-2025, 07:11 AM
Troubleshooting Cramer RV power supply by madan1 Started by madan1, 07-12-2025, 11:44 AM	6 responses 88 views 0 reactions	Last Post by madan1 07-15-2025, 05:51 AM
Seasonic Focus Plus 650 Gold (SSR-650FX) make PC restart especially when higher load by ary89 Started by ary89, 06-27-2025, 11:58 PM	12 responses 127 views 0 reactions	Last Post by Agent24 07-14-2025, 01:53 PM
yx-305d bench power supply decreasing voltage problem by ashan000 Started by ashan000, 07-12-2025, 08:43 PM	5 responses 63 views 0 reactions	Last Post by Agent24 07-13-2025, 02:24 PM
Hitachi drill charger UC18YKL by arsharpe Started by arsharpe, 07-12-2025, 11:53 AM	5 responses 57 views 0 reactions	Last Post by CapLeaker 07-13-2025, 10:35 AM
Repair Success! Middle Atlantic UPS2200R-IP by valvashon Started by valvashon, 02-06-2024, 12:54 PM	5 responses 372 views 0 reactions	Last Post by schmidtparty 07-09-2025, 10:45 AM
Agilent 33220A 20 MHz Function Generator by jason123 Started by jason123, 07-01-2025, 08:12 AM	26 responses 227 views 0 reactions	Last Post by jason123 07-08-2025, 06:57 AM
APC UPS 2200XLI error 0008 by circuito Started by circuito, 07-03-2025, 10:18 AM	3 responses 77 views 0 reactions	Last Post by CapLeaker 07-04-2025, 02:26 PM
Asus 3-pin charger resistor by EnricoS92 Started by EnricoS92, 01-20-2019, 07:09 AM	2 responses 1,408 views 0 reactions	Last Post by stj 07-02-2025, 02:40 AM
Pure Discovr Bluetooth speaker not charging possible bms problem. by thesame Started by thesame, 06-30-2025, 01:35 PM	0 responses 59 views 0 reactions	Last Post by thesame 06-30-2025, 01:35 PM
Teami Skincare Fridge TM10L power board goes kablooey by lkvee Started by lkvee, 06-02-2025, 11:09 AM	9 responses 91 views 0 reactions	Last Post by stj 06-30-2025, 04:39 AM
Tripp-lite SMART1000LCD not charging, no emergency power! by Eddie3 Started by Eddie3, 01-16-2024, 05:01 PM	7 responses 680 views 0 reactions	Last Post by Eddie3 06-29-2025, 08:30 AM
APC Smart UPS SUA1500 does not detect AC / doesn't turn on by CapLeaker Started by CapLeaker, 07-26-2024, 02:48 PM	53 responses 1,323 views 0 reactions	Last Post by petehall347 06-28-2025, 07:15 PM
How Can I test PWM DM0365R? by chth96 Started by chth96, 06-18-2025, 04:14 PM	10 responses 128 views 0 reactions	Last Post by chth96 06-27-2025, 04:36 AM
555 based power supply getting too hot by madan1 Started by madan1, 06-23-2025, 04:38 PM	14 responses 117 views 0 reactions	Last Post by CapLeaker 06-27-2025, 03:37 AM
Global AC logic output - XP Power FleXPower by tony359 Started by tony359, 06-20-2025, 03:06 PM	6 responses 55 views 0 reactions	Last Post by tony359 06-22-2025, 12:43 PM

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