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Tom's Hardware > Forum > Motherboards & Memory > Corsair > Computer won't power on -- problem with 4 pin connector / PSU

Computer won't power on -- problem with 4 pin connector / PSU

Forum Motherboards & Memory : Corsair Computer won't power on -- problem with 4 pin connector / PSU

Hi Friends,
I planned to upgrated my system so I bought new PSU – Crossair GS600W.
When I plug in both the 20-pin and 4-pin connectors to the mobo and hit the power button, the lights flicker briefly and turn back off. When I have ONLY the 20-pin connector attached (ie, once I remove the 4-pin connector), the power supply will stay on (fan running).
But system is working fine with my OLD PSU – 450W.
The only thing attached to the mobo are the CPU/HSF and PSU.

Please let me know if there is something as my MotherBoard doesn’t support this much of power supply or my PSU is faulty.
HD – Segate – 500GB
Memory 1 – INTEX – DDR2 – 2GB
Memory 2 -- INTEX – DDR2 – 2GB
Mobo -- MSI 945GCMS2L - Gigabyte
Video card – AIT 6770 HD
CPU – Intel Dual 2 Core – E7200 – 2.53Ghz
PSU – GS600 - Corssair

Reply to er_vishvastyagi

You don't need the 4 pin connector; it may not belong with the 20 pin section. It may be the separate 4 pin for the 12v connection next to the cpu socket. I run my old antec power supply 20 pin connector in a 24 pin slot with no problems.

Reply to o1die

Yes it's separate 4 pin for 12v connection next to CPU...when i'm connecting that my system is not BOOTING / starting - any idea on this ??

http://www.playtool.com/pages/psuc [...] #eps4plus4

Message edited by er_vishvastyagi on 10-23-2011 at 10:32:40 PM

Reply to er_vishvastyagi

Well, after reading your post a second time, I would return the power supply to the vender or request an rma from corsair.

Reply to o1die

I removed one RAM from my system and ...U SMPS worked ...don't know the reson of this..as my RAM is working with 450w SMSPS....

Thanks for all ur support

Reply to er_vishvastyagi

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Computer won't power on -- problem with 4 pin connector / PSU

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