System Not Starting After PSU Mod

Midnite8 · Jun 29, 2010

Well, I think I whooped myself by taking on the daunting task in sleeving my PSU. I plugged in everything and my system won't start. When I press power nothing turns on, I see the PSU fan move just slightly then nothing.

Kantastic · Jun 29, 2010

Check the PSU itself by shorting the green & black pins with a paper clip or something. If the PSU fan spins the unit is fine, otherwise it's dead.

http://www.overclock.net/faqs/96712-how-jump-start-power-supply-psu.html

Midnite8 · Jun 29, 2010

Ok, the fan spins! I didn't kill it after all lol, but now whats the problem them haha

_JP_ · Jun 29, 2010

Maybe you should see if there's continuity between the end of the cables. Might have isolated something.
It could also be a short-circuit somewhere and the PSU's anti-short system is acting when you power it on, hence the fan only spinning for a short period of time.

Midnite8 · Jun 29, 2010

Well I opened the PSU and I sleeved the 24-pin and 8 pin, I only took out 1 pin at a time so I wouldn't mess up but just in case how would I cross-check if the pins are in the correct place?

_JP_ · Jun 29, 2010

Well, if you have a multimeter (and know ho to use it), that's an easy task.
Take out your PSU and, without connecting it to any component, plug it to the mains and power it on like Kantastic said.
Now, take your multimeter and start measuring.
Set it to 20 Volts DC scale and check if every pin is where it should be.

If you want, follow these images for guidance:

(There is a color code for computer PSUs cables: Yellow = 12V; Red = 5V; Orange = 3.3V; Blue = -12V; white -5V)
(the 3.3V cables seem to be pink in these pics, but they're Orange in the PSUs)

EDIT:
Needless to say that if something doesn't match, there' something wrong with your PSU.
It is pictured a 6-pin PCI-e connector, but the differences to a 8-pin are only two grounds to the right. Also, the 12V EPS connector pictured is 4-pin, the 8-pin is just another 4-pin side-by-side.

Midnite8 · Jun 30, 2010

Ok, looked at the chart and compared, looks like I did switch up 2 wires lol that fixed it

fan is running and everything

Midnite8 · Jun 30, 2010

What is the safest way to cut off wires from my PSU that I do not need, it is hybrid modular but I was doing some cable sleeving sleeving and messed up on the Sata Power Cables, they don't work so I just want to cut them off.

sneekypeet · Jun 30, 2010

de-solder them from the power point, thats the safest way.

Midnite8 · Jun 30, 2010

So just cutting them off near the end isn't safe I presume since if it touches anything in the PSU it will damage it?

sneekypeet · Jun 30, 2010

I would assume if you want to ghetto engineer it, some tiny wire caps, electrical tape, or possibly heat shrink tube would keep the cut ends isolated.

Midnite8 · Jun 30, 2010

I cut them off and put heatshrink on the tip and it is fully covered, I don't think I would have a problem

Midnite8 · Jun 30, 2010

Thanks lol, just reported that dummy spammer

neoreif · Jun 30, 2010

Spam busters to the rescue!!!!!!!!!
:nutkick:

Mussels · Jun 30, 2010

spammers are bad mmkay.

System Name	Sunkist
Processor	Intel 4770K
Motherboard	Asus Maximus VI Hero
Cooling	XSPC Raystorm
Memory	G. Skill X Series 8GB DDR3 2400
Video Card(s)	Crossfire 7970s
Storage	RAID 0 Samsung 840 EVO
Case	Corsiar 750D
Power Supply	EVGA Supernova G2 1000W

System Name	Dust Collector
Processor	AMD Ryzen 5 3600X
Motherboard	Asus B550I Aorus Pro WiFi AX
Cooling	Alpenfohn Black Ridge V2 w/ Noctua NF-A9x14
Memory	Corsair Vengeance LPX 16GB DDR4 3200MHz/CL16
Video Card(s)	Power Color Red Dragon RX 5700 XT
Storage	Samsung EVO+ 500GB NVMe
Display(s)	Dell S2721DGF
Case	Dan Case A4
Power Supply	Corsair SF600 Platinum
Mouse	Logitech G603
Keyboard	Logitech G613

System Name	Sunkist
Processor	Intel 4770K
Motherboard	Asus Maximus VI Hero
Cooling	XSPC Raystorm
Memory	G. Skill X Series 8GB DDR3 2400
Video Card(s)	Crossfire 7970s
Storage	RAID 0 Samsung 840 EVO
Case	Corsiar 750D
Power Supply	EVGA Supernova G2 1000W

System Name	LenovoⓇ ThinkPad™ T430
Processor	IntelⓇ Core™ i5-3210M processor (2 cores, 2.50GHz, 3MB cache), Intel Turbo Boost™ 2.0 (3.10GHz), HT™
Motherboard	Lenovo 2344 (Mobile Intel QM77 Express Chipset)
Cooling	Single-pipe heatsink + Delta fan
Memory	2x 8GB KingstonⓇ HyperX™ Impact 2133MHz DDR3L SO-DIMM
Video Card(s)	Intel HD Graphics™ 4000 (GPU clk: 1100MHz, vRAM clk: 1066MHz)
Storage	SamsungⓇ 860 EVO mSATA (250GB) + 850 EVO (500GB) SATA
Display(s)	14.0" (355mm) HD (1366x768) color, anti-glare, LED backlight, 200 nits, 16:9 aspect ratio, 300:1 co
Case	ThinkPad Roll Cage (one-piece magnesium frame)
Audio Device(s)	HD Audio, RealtekⓇ ALC3202 codec, DolbyⓇ Advanced Audio™ v2 / stereo speakers, 1W x 2
Power Supply	ThinkPad 65W AC Adapter + ThinkPad Battery 70++ (9-cell)
Mouse	TrackPointⓇ pointing device + UltraNav™, wide touchpad below keyboard + ThinkLight™
Keyboard	6-row, 84-key, ThinkVantage button, spill-resistant, multimedia Fn keys, LED backlight (PT Layout)
Software	MicrosoftⓇ WindowsⓇ 10 x86-64 (22H2)

System Name	Sunkist
Processor	Intel 4770K
Motherboard	Asus Maximus VI Hero
Cooling	XSPC Raystorm
Memory	G. Skill X Series 8GB DDR3 2400
Video Card(s)	Crossfire 7970s
Storage	RAID 0 Samsung 840 EVO
Case	Corsiar 750D
Power Supply	EVGA Supernova G2 1000W

System Not Starting After PSU Mod

Midnite8

Kantastic

Midnite8

_JP_

Midnite8

_JP_

Midnite8

Midnite8

sneekypeet

Retired Super Moderator

Midnite8

sneekypeet

Retired Super Moderator

Midnite8

Midnite8

neoreif

Mussels

Freshwater Moderator

System Name	EVA-01
Processor	Intel i7 13700K
Motherboard	Asus ROG Maximus Z690 HERO EVA Edition
Cooling	ASUS ROG Ryujin III 360 with Noctua Industrial Fans
Memory	PAtriot Viper Elite RGB 96GB @ 6000MHz.
Video Card(s)	Asus ROG Strix GeForce RTX 3090 24GB OC EVA Edition
Storage	Addlink S95 M.2 PCIe GEN 4x4 2TB
Display(s)	Asus ROG SWIFT OLED PG42UQ
Case	Thermaltake Core P3 TG
Audio Device(s)	Realtek on board > Sony Receiver > Cerwin Vegas
Power Supply	be quiet DARK POWER PRO 12 1500W
Mouse	ROG STRIX Impact Electro Punk
Keyboard	ROG STRIX Scope TKL Electro Punk
Software	Windows 11

System Name	SynChron
Processor	Intel Core i7 3820
Motherboard	ASROCK X79 Extreme 9
Cooling	CoolerMaster Hyper 212X with 2 Noctua NF-F12 fans in push/pull
Memory	4x2gb Corsair Vengeance LP 1600 CL9
Video Card(s)	Asus GTX 770 DCu2
Storage	Samsung 830 128gb SSD, 1TB Western Digital Velociraptor, Seagate Barracuda 320gb 7200rpm SATAIII
Display(s)	HP x2301 LED
Case	Corsair Obsidian 750d
Audio Device(s)	Asus Xonar Essence STX
Power Supply	Seasonic X - 660Watt Gold
Software	Windows 7 Home Premium 64-bit

System Name	Rainbow Sparkles (Power efficient, <350W gaming load)
Processor	Ryzen R7 5800x3D (Undervolted, 4.45GHz all core)
Motherboard	Asus x570-F (BIOS Modded)
Cooling	Alphacool Apex UV - Alphacool Eisblock XPX Aurora + EK Quantum ARGB 3090 w/ active backplate
Memory	2x32GB DDR4 3600 Corsair Vengeance RGB @3866 C18-22-22-22-42 TRFC704 (1.4V Hynix MJR - SoC 1.15V)
Video Card(s)	Galax RTX 3090 SG 24GB: Underclocked to 1700Mhz 0.750v (375W down to 250W))
Storage	2TB WD SN850 NVME + 1TB Sasmsung 970 Pro NVME + 1TB Intel 6000P NVME USB 3.2
Display(s)	Phillips 32 32M1N5800A (4k144), LG 32" (4K60) \| Gigabyte G32QC (2k165) \| Phillips 328m6fjrmb (2K144)
Case	Fractal Design R6
Audio Device(s)	Logitech G560 \| Corsair Void pro RGB \|Blue Yeti mic
Power Supply	Fractal Ion+ 2 860W (Platinum) (This thing is God-tier. Silent and TINY)
Mouse	Logitech G Pro wireless + Steelseries Prisma XL
Keyboard	Razer Huntsman TE ( Sexy white keycaps)
VR HMD	Oculus Rift S + Quest 2
Software	Windows 11 pro x64 (Yes, it's genuinely a good OS) OpenRGB - ditch the branded bloatware!
Benchmark Scores	Nyooom.