New PC - Not Turning On; Mobo Lights On (Asus P8z68-v pro)

Asus P8z68-v pro motherboard (intel sock...
September 17, 2012 at 13:19:34
Specs: Windows 7
I have the Asus P8z68-v pro and i7 2700K CPU. I installed everything in the new case and used the same power supply from my old working PC. Connected the HD and installed the 2x 4GB RAM, and used the on-board graphic card.

The power (red) and reset (green) lights on the mobo turn on when I turn the power on on the PSU. However, when I try to turn on the actual computer, and press the button on the front of the case, nothing happens! I also trying pressing the power button on the mother board as well, and I only hear a very weak beep for a fraction of a second.

I tested the PSU, it's working just fine. I took it out of the case and tried the bench test with nothing but the mobo and psu, still it didn't work.


See More: New PC - Not Turning On; Mobo Lights On (Asus P8z68-v pro)

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#1
September 17, 2012 at 13:29:28
You said you bench tested the system, but still here is an article that could come handy (be sure to read it): CLICK ME

Some extra questions: are you sure your PSU is sufficient? Depending on what was your prior configuration, you might need a new, stronger PSU. Please post your power supply specs (wattage and amperage).

Just to mention, try booting with only one stick of RAM. Did you do this while you were testing the configuration outside the case? (while having installed the core components properly too) - Refer to the link given above.

Google is your friend

www.google.com

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Have a GREAT day!


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#2
September 17, 2012 at 13:33:33
My PSU is 500 wattage. I did try booting with one stick of Ram both inside and outside the case. I tried it without any Ram too and there were no warning beeps from that.

Not even the CPU fan is spinning...


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#3
September 17, 2012 at 13:42:22
I tried it without any Ram too and there were no warning beeps from that.

That means something is wrong. Please post the amperage and the make of the PSU.

EDIT: I missed the 'CPU fan not spinning' part. This is evident problem with either the PSU itself (too weak?) or power connections. Do you notice the 8 pin plug near the CPU socket? I am fairly sure your PSU doesn`t have one, and you can`t boot the system up without having that sorted out. That is crucial. Please post back to confirm my suspects.

Google is your friend

www.google.com

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Have a GREAT day!


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Related Solutions

#4
September 17, 2012 at 14:02:40
Ok, I will post as soon as I get home, which is in the next 3-4 hours.

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#5
September 18, 2012 at 08:16:33
I did noticed the 8 pin (CPU Power) connector and I had connected it.

MY PSU is the OCZ StealthXStream OCZ500SXS 500W ATX12V / EPS12V Active PFC Power Supply.

I had bought it on http://www.newegg.com/Product/Produ...


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#6
September 18, 2012 at 12:14:41
Unless I am missing something here, the PSU posted above does not have an 8 pin CPU power connector.

Check this link: CLICK ME.

The specs on newegg (the link you posted above) confirm the same: 1 x 4-pin CPU.

But, what it does have is an 8 pin (6-2) PCI-E connector, which in no way can replace the 8 pin CPU connector. (but you might be using that one instead)

To verify which one you are using, check the wire colors of the connector. If it is the right one, four wires should be black, and four yellow. Please post back with the results.

Important: DO NOT power up the system until you verify that you are using the right connector. Doing so might can your system!

Google is your friend

www.google.com

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Have a GREAT day!


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#7
September 18, 2012 at 12:37:41
Wow, you're right. I have 8 pin (6-2) connector, didn't realize that it was for PCI-E.,, so I need to buy a PSU with 8 pin CPU connector, then...right??

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#8
September 18, 2012 at 12:39:54
Will this work??

http://www.newegg.com/Product/Produ...


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#9
September 18, 2012 at 12:45:31
Glad you found the cause of the problem.

The rest of your configuration, please? What PSU should you buy depends on what GPU you are planning to use (big time).

Google is your friend

www.google.com

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Have a GREAT day!


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#10
September 18, 2012 at 12:50:07
I'm planning on using the integrated graphic card, the one that comes with the ASUS motherboard.

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#11
September 18, 2012 at 12:55:53
Would 430 watt be enough for the i7, 1 DVD RW drive, 2-4 hard drives, and the ASUS motherboard??

I may use the USB 2 and USB 3 port from time to time....


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#12
September 18, 2012 at 13:01:42
It that case, I would say yes. From what I read on newegg, this PSU works well with configurations similar to yours, so you should be fine - Hard drives are not big power consumers. Do drop us a text when you finish assembling your system or if you have any problems or questions!

Google is your friend

www.google.com

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Have a GREAT day!


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#13
September 18, 2012 at 13:03:16
So, 430 wattage will be enough for the i7, 1 DVD RW drive, 2-4 hard drives, and the ASUS motherboard?? The hard drives would be SATA onlyl

Thank you so much for your help... :))


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#14
September 18, 2012 at 13:07:41
As I stated above - yes. Especially because you are using onboard GPU.

You are quite welcome. Hope everything goes smooth for you.

Google is your friend

www.google.com

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Have a GREAT day!


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