Ram replace-Pc does display nothing

[AldoJhako]

I just bought a brand new 4gb HyperX ram 1333mhz to replace my old 2gb old one (probably slower). They are both ddr3 and my motherboard is supposed to support my new one. When I put back my old one everything is ok, the problem occurs only when I put the new one.
Things I have tried:
-I tried every possible combination in every slot.
-I updated BIOS
-I removed and placed back my CMOS battery.
Any other suggestion?
(I'm placing the new ram stick alone,without the old one)

 

[Froberg]

Are you absolutely sure that your new memory is on the vendor QVL list?
Might just be a defective memory block.

 

[AldoJhako]

http://dlcdnet.asus.com/pub/ASUS/mb/SocketFM2/A58M-E/Kavari_2DIMM_QVL_FM2_Series.pdf

My HyperX 4gb 1333 doesn't seem to appear in this list but I checked if it was compatible with my mobo from pcpartpicker and it showed me that it was...

 

[AldoJhako]

My motherboard: Asus P5G41T-M LX2/GB/LPT

 

[Froberg]

If it's not on the QVL list, that's the first thing they'll bitch about. I'd return it as RMA for something on the QVL list. I'm tempted to say it *should* work, except it clearly doesn't.
Test the RAM in another computer, if you know someone who has one you can test it on. Other than that, it may just be a case of incompatibility.