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Windows 7: My newly build wont power on

15 Oct 2014   #1
hellasenpai

Windows 7 Ultimate x64
 
 
My newly build wont power on

My new build wont power on all I hear is a few high pitch sounds coming from what I think is the psu.
My specs:

SSD 128GB SAMSUNG 850 Pro
1TB HDD (from previous build it was working fine 2 days ago)

2TB HDD(from previous build it was working fine 2 days ago)

GPU = GTX 680 2GB (from previous build it was working fine 2 days ago) MSI GTX 970 GAMING 4G GeForce GTX 970 4GB 256-Bit on it's way in the mail.

Case is pretty old and doesnt have a lid but it was working fine with my pervious buid)

PSU = CORSAIR Enthusiast Series TX750 V2 750W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified Active PFC High Performance Power Supply (from previous build it was working fine 2 days ago)

Heatsink = Scythe Ashura Universal Processor Cooler

CPU = Intel Core i7-4790K Haswell Refresh Quad-Core 4.0GHz

Motherboard = MSI Z97-Gaming 7 Intel Z97 Motherboard

Memory = CORSAIR Vengeance 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory

Please help me


My System SpecsSystem Spec
.
15 Oct 2014   #2
ignatzatsonic

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit
 
 

Here's a list to work on from member TVeblen:


Strip it down and then add components back, one at a time, to try and isolate the offending component.

The test (power off, power cord unplugged):

• Disconnect everything externally connected except the mouse and keyboard (printers, USB devices). If you are not using a wired mouse and keyboard see if you can borrow one.

• Disconnect the power and data cables from all the drives inside the computer (Hard drives, DVD/CD drives).

• Remove all the cards installed in the PCI slots including the video card.

• Remove all the RAM sticks (same rules as above).

Now connect the power cord and turn the PC on.

• The motherboard should start beeping. You should get a beep code that tells you there is no memory. This is good, it means the processor is functioning and the motherboard is good so far.

• Now add one stick of memory in Slot A1 and power on. More beeping: "no video card" beep code. This is good.

• Then add the video card and connect it to the monitor. You should get no beeping and you should see the BIOS screens, ending with the message that there is no boot device.

If you get no video then switch the one memory stick installed for another one and test.

Continue adding components one at a time.

If at any point the PC fails the the last component added was the problem one.

If you removed everything and there is only the Motherboard (with integrated video), processor, and power supply to contend with and it does not POST or show anything on the screen, then the problem is one of those three.

If you have tested by using another power supply then you are down to two. CPUs rarely fail, so motherboard is the most likely guess.

Try performing a CLRTC or Clear CMOS as a last ditch effort, and check the 3v battery. Both long shots, but what do you have to lose at this point.
My System SpecsSystem Spec
15 Oct 2014   #3
hellasenpai

Windows 7 Ultimate x64
 
 

Nothing qorked but I did discover something, when I press on the 24pin atx power cable the motherboard turns on is it the cable?
My System SpecsSystem Spec
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15 Oct 2014   #4
hellasenpai

Windows 7 Ultimate x64
 
 

Update I rebuilt the pc outside of the case and now it works is it the case? Can a case cause a short? That case is pretty old. There are also 11 standoffs and my motherboard only has 9 holes
My System SpecsSystem Spec
15 Oct 2014   #5
Ranger4

Windows 7 Home Premium 64 bit sp1
 
 

Yes, short circuits from the motherboard to the case can certainly happen. It's one of the things you have to watch out for when fitting any new components.
The motherboard should only be located by the actual number of holes it has. If the case has other stand off's & if these are metal ones then they will have to removed or shorts will occur.
Also check that the stand off's that are to hold the motherboard aren't too wide & may contact the circuits & check that there are no projections on the case that may be high enough to contact the motherboard.
My System SpecsSystem Spec
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 My newly build wont power on




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