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PC turns on, then off, then again on

Last response: in Components
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March 24, 2012 9:28:25 PM

Hi!

When i turn on my pc, it turns on for 2 secs then off and then on again and it runs normally afterwards. It seems the issue is connected to the amount of power i recieve. I know that somehow, cuz i tried inserting GPUs which needs more power to run, and then pc wouldnt even start, but when i insert the GPU with less power requierment, pc runs smoothly without turning off. Ofc in the begginin i though it was PSU, but its new and its 700w, but somehow it doesnt use his powers fully, cuz i think with 700w i should run any GPU or any pc specs. Im thinkin its maybe my motherboard but im not sure.


PC specs:

Core 2 duo e8400 3ghz
ATI 4850
GIGABYTE GA-G41MT-S2
8gb DDR3 (2x 4gb)
PSU 700W 25A

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a c 274 ) Power supply
March 25, 2012 4:01:52 AM

Ya! 25A on a 700W psu is pitiful !
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March 25, 2012 10:44:29 AM

Ow and i think its 28A. Its like my pc is not gettin enough power....ow and i filled that PSU Calculator uve linked me, and it said minimum power recommended is 302 W :) 
March 25, 2012 10:54:30 AM

you do realise that a lot of powers supplies that are sold cannot give the voltage written on them


people who buy these power supplies are usually the ones that complain that there power supply blewup and took a load of components with it.



the reason to go for a better quality power supply is, nearly all come with surge-protection.


bassically they act like the fuse in your house it blows up and saves the rest of your components. instead of spending £400+ replacing components you can spend 60-100+ on a new power supply that saved you the money instead



because they are usually more stable as well, your components live longer
a c 274 ) Power supply
March 25, 2012 5:27:18 PM

This unit would be fine for your specs and will save you some money too!
SilverStone SST-ST60F-P v 1.1 modular 600W
http://tehnobox.com/index.php?route=product/product&pat...
Buy the 600 or 750W Silverstone.
Coolermaster GX750 is a crappy unit.= stay away from it!
a c 274 ) Power supply
March 25, 2012 6:41:25 PM

For my money i'd choose a Corsair TXV2 either a 650 or 750.
5yr warranty and 100% Japanese capacitors.= Seasonic oem
No brainer imo!
March 25, 2012 7:06:16 PM

Thanks davcon.

Can motherboards cause the lack of power?
!