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Power Supply Gave Me A Scare

Worstcaster
By Worstcaster
in Power Supplies
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I just upgraded from a 2200g to a 3600 today.  Temps were doing fine 35-38 C idle, 55-60 C under load.  Suddenly my computer shut off.  I let everything cool down, but the system wouldn't restart.  I was worried the new CPU was somehow fried, but remembered the same thing happened about a month ago before the upgrade.  That day was 105 F and there was a ozone smell coming from my power supply.  About 20 minutes later, I was able to restart it without problems.  Since the fans wouldn't turn today and the CPU debug light wasn't on, I decided my problem was the power supply (Cooler Master MasterWatt 550).  I picked up a Corsair CX 650M and after installation the computer stared right up.  I examine the old power supply through the vent holes (I know not to open it up) and saw one of the capacitors was blown open and bulging (The blue thing with black showing through the middle in the picture). 

 

 

Blown Capacitor.jpg

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Part of the input filtering. Guess that cap has just gone bad unless there's something wrong with your home's electricity system

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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9 minutes ago, Worstcaster said:

I examine the old power supply through the vent holes (I know not to open it up) and saw one of the capacitors was blown open and bulging (The blue thing with black showing through the middle in the picture). 

That's not a leaking cap. That's caulk they intentionally put on the caps & coils to hold them in place and reduce vibrations. You can even see the same black caulk/silicon present in review units.

 

https://www.kitguru.net/components/power-supplies/zardon/cooler-master-masterwatt-650-power-supply-review/4/

image.thumb.png.8e3aee3a3d10988f1bb8ee688e71d20c.png

CPU: Intel i7 6700k  | Motherboard: Gigabyte Z170x Gaming 5 | RAM: 2x16GB 3000MHz Corsair Vengeance LPX | GPU: Gigabyte Aorus GTX 1080ti | PSU: Corsair RM750x (2018) | Case: BeQuiet SilentBase 800 | Cooler: Arctic Freezer 34 eSports | SSD: Samsung 970 Evo 500GB + Samsung 840 500GB + Crucial MX500 2TB | Monitor: Acer Predator XB271HU + Samsung BX2450

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4 minutes ago, Spotty said:

That's not a leaking cap. That's caulk they intentionally put on the caps & coils to hold them in place and reduce vibrations. You can even see the same black caulk/silicon present in review units.

 

https://www.kitguru.net/components/power-supplies/zardon/cooler-master-masterwatt-650-power-supply-review/4/

image.thumb.png.8e3aee3a3d10988f1bb8ee688e71d20c.png

Thanks, that's a lot clearer without the vent in the way.  Not sure what component went bad now.  I am glad the computer is working again though.

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1 minute ago, Worstcaster said:

Thanks, that's a lot clearer without the vent holes in the way.  Not sure what component went bad now.  I am glad the computer is working again though.

¯\_(ツ)_/¯

The Cooler Master Masterwatt 550W comes with a 5 year warranty I believe, so if the PSU is faulty just RMA it.

CPU: Intel i7 6700k  | Motherboard: Gigabyte Z170x Gaming 5 | RAM: 2x16GB 3000MHz Corsair Vengeance LPX | GPU: Gigabyte Aorus GTX 1080ti | PSU: Corsair RM750x (2018) | Case: BeQuiet SilentBase 800 | Cooler: Arctic Freezer 34 eSports | SSD: Samsung 970 Evo 500GB + Samsung 840 500GB + Crucial MX500 2TB | Monitor: Acer Predator XB271HU + Samsung BX2450

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3 minutes ago, Spotty said:

¯\_(ツ)_/¯

The Cooler Master Masterwatt 550W comes with a 5 year warranty I believe, so if the PSU is faulty just RMA it.

I already got a new power supply, so I'm probably just not going to worry about it.

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