Laptop HP620 won't boot with new Kinkstone ram

[fred_vr]

I'm trying to expand my HP 620 (http/h20565.www2.hp.com/hpsc/doc/public/display?sp4ts.oid=4158863&docLocale=en_US&docId=emr_na-c02108262) Intel Pentium Processor T4500 (2.3 GHz, 1MB L2 cache, 800 MHz FSB) with this Kingstone 4gb RAM (https/www.amazon.it/Kingston-KVR13S9S8-Memoria-Non-ECC-204-pin/dp/B008CP5QJK?ie=UTF8&*Version*=1&*entries*=0) but the laptop doesn't boot. Tried both the RAM (the old 2gb and the new 4gb) and only the new one, with no results.

 

[webworkings]

It is possible the new one just isn't working, or is defective. Try getting them to replace it.