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pressed power, nothing works. :(

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#1 tekfunk


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Posted 09 February 2010 - 02:18 PM

alright, i have a serious problem

so i came home yesterday and my computer was turned off, i had left it on when i left - i pressed the power button, nothing worked. no lights, nothing came on. so i assumed that my power supply died and i needed to replace it.

i had an 800 watt xion supernova power supply, and i went out and bought a Kingwin 1220 watt Mach1 power supply.

my problem is, i wanted to see the computer at least turn on to make sure that it was the problem - i've plugged up the 20 + 4 pin connector to the motherboard and a blue plugin (not quite sure what it's called, there are two of them and i can only find one to connect), i assume it's for backwards compaibility to the motherboard. though if i'm wrong, please correct me.

i've also checked the cpu + socket - there are no burns or anything, and it was kept cool.

my motherboard is a p7n sli ms-7380 nvidia nforce 750i sli

please, help.

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#2 MrBruce1959


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Posted 09 February 2010 - 02:59 PM

Here is some info on this piece of hardware

Kingwin Mach 1 1220-Watt Power Supply

The Kingwin Mach 1 features four PCI-Express connectors, two for each 6-pin and 8-pin, to power multiple high-end graphics cards. The six 12V rail design allow for optimum load balancing resulting in greater performance and stability.


Form Factor: ATX

Wattage: 1220-Watt

SLI/Crossfire: SLI Certified

Modular Cabling: Yes

Fan: 140 mm

+3.3V: 24 A

+5V: 30 A

+12V 1: 20 A

+12V 2: 20 A

+12V 3: 20 A

+12V 4: 35 A

+12V 5: 35 A

+12V 6: 20 A

-12V: 0.5 A

+5VSB: 5.0 A

Motherboard Connector: 20+4 Pin
4-Pin P4: 1
4-Pin/8-Pin EPS Connector: 1
6-Pin PCI-Express Connector: 2
6-Pin/8-Pin PCI-Express Connector: 2
4-Pin Floppy Connector: 1
4-Pin Peripheral Connector: 8
SATA Power Connector: 8

Detailed Features

Output Voltage +3.3V +5V +12V1 +12V2 +12V3 +12V4 +12V5 +12V6 -12V +5VSB
Max. Load 24A 30A 20A 20A 20A 35A 35A 20A 0.5A 5.0A
Min. Load 1.0A 1.0A 0.8A 0.8A 0.5A 1.0A 1.0A 1.0A 0A 0.1A
Regulation 5% 5% 5% 5% 5% 5% 5% 5% 10% 5%
Ripple & Noise(mV) 50 50 120 120 120 120 120 120 120 50
Total Power 1220W continuous output @ 50C ambient temperature
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