4 Replies - 1663 Views - Last Post: 27 March 2015 - 05:44 AM

#1 deprosun  Icon User is offline

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Computer doesn't turn on.

Posted 10 February 2015 - 08:24 PM

I built my desktop in 2012 Sept. These are the specs:

Motherboard: Intel BOXDH67CLB3 LGA 1155 Intel H67 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard

Power Supply: RAIDMAX HYBRID 2 RX-530SS 530W ATX12V V2.2/ EPS12V SLI Ready CrossFire Ready Modular Power Supply, New Version with Build-in LED Fan On/Off Switch

Graphics Card: GIGABYTE GV-N430-2GI GeForce GT 430 (Fermi) 2GB 128-Bit DDR3 PCI Express 2.0 x16 HDCP Ready Video Card

CPU: Intel Core i7-2600 Sandy Bridge Quad-Core 3.4GHz (3.8GHz Turbo Boost) LGA 1155 95W Desktop Processor Intel HD Graphics 2000 BX80623I72600

Last night (Feb 9th) I was peacefully watching tv on it. I shut it down before I slept. Next morning, I wake up and turn it on. And my baby doesn't turn on. She won't respond to my fingers. Fans aren't spinning, like nothing.

So what did I do?
-I opened her up. I saw the green light on the mobo was on. This gave me a hint that PSU is “Okay”.

-Checked if everything was connected (even though I haven't moved the computer anywhere lately so I don't imagine anything to get loose). Seemed all good.

-Then I wanted to test the PSU. I unplugged the PSU from Mobo (the 24 pin connector). Only top fan was connected to the PSU. Then I carefully performed the paper clip test. The top fan ran! Woo. This makes me thing that PSU is still “okay.”

-So I connected it to the rear fan component on the mobo. I did not connect the 24 pin connector. So at this point, I still have the paper clip in the PSU plug. I did the test again. Only the top fan ran. Rear fan did not run. Top fan is directly connected to the PSU. Rear fan is connected through the mobo.

-Now I am not sure if the rear fan is supposed to run if the 24 connector aren't connected. If the rear fan should run regardless if the 24 pin connected as long as PSU is directly supplying to the rear fan component on the mobo, then I would say that my mobo is bad. If I need the 24 pin connector to run the rear fan along with the direct connection from the PSU to the component, then I would say my PSU is not giving enough power.

-Anyways, I feel that my PSU isn't giving enough energy. I also feel that my it could be my motherboard. Any suggestions? Should I buy a System76?

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Replies To: Computer doesn't turn on.

#2 modi123_1  Icon User is online

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Re: Computer doesn't turn on.

Posted 11 February 2015 - 07:40 AM

Is there any audio beeps and front panel LED blinking?
http://www.manualowl.../285264?page=65

Do you have a spare power supply to try out?

Excessive dust?

Start removing components, reseating them, and starting with the bare bones. RAM, get rid of the videocard and use onboard, etc.

Why would the option be to buy a 'System76'?
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#3 deprosun  Icon User is offline

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Re: Computer doesn't turn on.

Posted 11 February 2015 - 07:44 PM

I am just joking about 'System76' lol. Don't have money.

So I went on got a PSU from best buy with same watts to see if it turns on. It did. Therefore, my old PSU wasn't producing enough energy. However, now my HDD is not being recognized. The BIOS says no Hard Disk recognized. All my SATA cable is connected to my PSU. I feel my SATA cable that connects HDD to mobo is bad.

-I connected PSU directly to HDD and still not luck. I did this to find out if the connector that comes out of HDD had problems which i think it doesn't. Less probable.

-This is why I think my SATA cable from HDD to mobo is bad as it's not giving good connection. I hope my HDD didnt go bad :/. I am trying to see if I can find anyone to check if my HDD will work on their desky.
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#4 Nattypj  Icon User is offline

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Re: Computer doesn't turn on.

Posted 27 March 2015 - 04:12 AM

It could be a multitude of things, like modi123_1 said, try a different power supply.

You could also try these tasks:

  • Unplug and try a different power cable.
  • Reseat everything on your motherboard, excluding the CPU, unless you know how to do it correctly.
  • Make sure that there is power going into the motherboard.
  • remove all dust from the motherboard with an unused makeup brush.
  • Finally, try a different plug socket, you could have a faulty fuse.

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#5 no2pencil  Icon User is offline

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Re: Computer doesn't turn on.

Posted 27 March 2015 - 05:44 AM

View Postdeprosun, on 11 February 2015 - 10:44 PM, said:

-I connected PSU directly to HDD and still not luck. I did this to find out if the connector that comes out of HDD had problems which i think it doesn't. Less probable.

ATX PSUs require the BIOS from the mother board to power the HDD. By saying you connected the PSU directly to the HDD are you saying that you have no logic board? As one must plug the PSU directly to the HDD in any normal situation.

The only ways to power an HDD without a logic board are :
  • Use an AT power supply
  • Use an ATX power supply with a bridge/short (please don't do this until you understand how & why :) )
  • Use a SATA/USB adapter

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