machine turns on and off

Eddiex · 2 Jun 2015 at 10:26

Good Morning,
I purchased a new motherboard/CPU and graphics card and replaced the parts yesterday. Unfortunately when trying to boot the machine it turns on for 3 seconds and then powers off and then continues to do this cycle.
I have removed the RAM/Graphics Card and hard drives but still getting the same issue.

The machine was originally running:

Case
CM Storm Scout Case

CPU
AMD Phenom II X4 955

RAM
8.00GB DDR3 @ 668MHz

Motherboard
ASUSTeK Computer INC. Crosshair III Formula (AM3)

Graphics
1024MB ATI AMD Radeon HD 6800 Series

Storage
64GB Crucial C300 (SSD)
500GB Western Digital WDC

PSU
CoolerMaster 600W Silent Pro Modular PSU

The new items are
CPU: Intel Core i5-4690K 3.50GHz (Devil's Canyon) Socket LGA1150 Processor - Retail
- Motherboard: Gigabyte Z97X-SLI Intel Z97 (Socket 1150) DDR3 ATX Motherboard

And
Gigabyte GeForce GTX 970 "Mini-ITX" 4096MB GDDR5 PCI-Express Graphics Card

Could anyone suggest anything?

Hagar · 2 Jun 2015 at 13:45

Clear cmos manually either by jumper or removing battery and power cord.

Check all power connections and CPU heatsink attachment.

Check PSU with paperclip method.

Check system outside the case on cardboard or similar. Start with minimal components.

Attach a speaker and listen for beeps.

EDIT Remove CPU and check socket for bent pins (iI hope that thiis is not so).

A few things to try.

Musty Pie · 2 Jun 2015 at 14:46

All stand offs in the right place on the case?

ginjaninja · 2 Jun 2015 at 17:01

that ddr 3 memory mhz looks low...is it compatable with that board/cpu

ginjaninja · 2 Jun 2015 at 17:03

Memory Types DDR3 and DDR3L 1333/1600 at 1.5V

Shrapnel · 2 Jun 2015 at 18:29

Have seen similar years ago cause by a mobo earthing through the case.. Try removing all components from the case.

Also, is the RAm getting enough voltage? I once had cheap and fast ocz ram which needed 2.1v* but only for 1.8 frm the mobo hence wouldn't post. Has to buy some crucial to boot the system to increase the voltage.

*might have been 2.0v. Was years ago.

Good luck.

Hagar · 3 Jun 2015 at 10:31

ginjaninja said:
that ddr 3 memory mhz looks low...is it compatable with that board/cpu

it will be 1333MHz, 667 Double data rate.

Voltages should be 1.5V to 1.65V maximum

Musty Pie · 4 Jun 2015 at 08:18

Looks like this thread has been abandoned so we will never know!

sepulchre · 4 Jun 2015 at 10:05

Actually I have a similar issue with my Gigabyte Z97 gaming 7 board, it will power on and then off a a few times when booting from a mains off status before it boots into Windows. I've never got to the bottom of it either.