Ram upgrade issue, pc won't display

[Westwoodo]

This is my current build:

Noctua NH-D14 Dual Radiator and Fan CPU Cooler
Intel Core i7-2600K 3.40GHz (Sandybridge) Socket LGA1155 Processor - Retail
2TB Samsung HD204UI Spinpoint F4 SATA-II 3.5" Hard Drive
Samsung SH-S222AB/BEBE DVD Writer
Liteon Ihas 524
Coolermaster HAF X NVIDIA Edition Full Tower Case
ASUS P8Z68-V PRO Intel Z68 (REV B3) Socket 1155 DDR3 PCI-Express Motherboard
Microsoft Windows 7 Home Premium 64 Bit
750W Corsair HX Series Modular ATX2.2 SLI/Crossfire Compliant Power Supply
8GB Corsair Memory XMS3 DDR3 1600 MHz CAS 9 Dual Channel Desktop - CMX8GX3M2A1600C9 4 x 4gb
128GB CSSD-F120GB3-BK Force 3 SSD
MSI R9 380 Gaming 4GB

I have just added 2x4gb of corsair 1600mhz ddr3 with the same 99924 rating, the system was working perfectly before i added the ram, but now the system will boot but won't display thing?

I have removed the cmos battery for 10 minutes to no avail, I have also removed the new ram but the system will still not display anything on the monitor?

On closer inspection my old ram is 1.65 v and the new one is 1.5v?

Could someone suggest something else for me to try as i am scratching my head with what to do next?

Many thanks

 

[Zerk2012]

Their never a guarantee when adding memory it will play nice together even if you buy what looks like the same memory the parts used to make the memory could of changed. I would try to return what you bought and buy a new 2X8gb set that's the safest bet.

 

[Westwoodo]

The answer was stupidly obvious...... My ram needs to be pressed in till it click twice.... it had only clicked once but felt as if the mobo was flexing so I stopped pushing, its sorted now and the new ram works fine too!

Thank you Zerk that would have been what I did next!