Motherboard not booting

[seth_sule]

Trying to build PC with a motherboard I am using from workplace (so it was working). I have used benchmarking sites to ensure components are compatible but PC is not booting. I tested PSU on otber boards, purchased new DDR3 RAM and Graphics card but to no avail. Specs below please help:


Motherboard :
Asus - P7P55D ATX LGA1156 

Graphics Card:
GeForce GT 710 2GB Low Profile Video Card

RAM:
Hypertec DDR3 4GB DIMM 240 pin

PSU:
Ace ATX power supply 500 watts

 

[alexoiu]

What CPU?

 

[seth_sule]

Its an i7-8700 processor

 

[seth_sule]

https://seth-sule.imgbb.com/

Images above..

 

[alexoiu]

i7 870, I guess.
You have not connected the 8 pin power cable to the motherboard.
And, if RAM is ECC, it would not work.

 

[seth_sule]

The RAM isnt ECC and is not going to boot without the 8 pin connected? Shouldnt the cpu fan at least spin or should it not work at all

 

[alexoiu]

The CPU does not get power if the 8 pin cable not connected.
Same for the CPU fan.

 

[seth_sule]

Oh right well my PSU doesnt have an 8 pin only a 4 pin. Does that mean i need a new PSU?

 

[alexoiu]

Try with the 4 pin: http://i58.tinypic.com/2ahuohl.png

 

[seth_sule]

Just went and purchased a Psu with 8 pin still not booting

 

[sp00kz]

Do you receive any Post Code beeps?


Check the LEDs on the board that stay solid green, this indicates the device failure.
Memory - Above Mothboard Power Supply Connector
Processor - Below Processor Socket
VGA - Left of top PCIe x16 Slot
Boot Device - Left of SATA-4 Port

 

[seth_sule]

I dont have an internal speaker. The only LED is the sb_pwr which stays green. (As seen in pics above)

 

[sp00kz]

Try moving the GT 710 into a different slot.

If it still doesn't post, try holding down the MemOK button to force a memory test. If the DRAM_LED does not stop blinking after 30s or stays solid green you more than likely have incompatible DIMM.

 

[seth_sule]

No other light other than the green led beneath my GP card. Looks like the only other option is Memory card.