Incorrect RAM reported on ASUS F555LJ-XO294T notebook

I have an ASUS F555LJ-XO294T notebook with 8Gb (2x4Gb) RAM running Windows 10 Home 64-bit.

Refer to the attached screen shot of Speccy, which reports Memory Size 8Gb and the 4Gb in Slot #1, but does not report the other 4Gb in Slot #2.

Any comments?

post-74987-0-96146900-1451380198_thumb.png

on my asus f550c is it similar, but i have 4 gb onboard... have you take a look on your hardwaredescription from your notebook?

30be22-1451383908.jpg

Windows 10 Task Manager reports 8Gb of DDR3 SODIMM RAM, with 2 of 2 slots used.

For some unknown reason, Speccy does not recognise that Slot #2 is used!

i found this:

Memory
8192 MB , DDR3-1600, dual-channel, one slot (used), 4 GB soldered onto the motherboard
(it shows the same ram-configuration as on my --> 4 GB in one slot --> but im summary 8 GB)
i think its as by me too... perhaps. but i dont have a look into my notebook yet... this would bring the certain knowledge
have you the packaging from your laptop at home?

are this comparable the specifications of your notebook?

http://img.billiger.de/dynimg/XWCO1K1Zo62DIJHBHktkN_t4H9rycHjeBa9LTdXG2DAl8y7A8yYy_A2ybJeo6DvKguQkD1AzL30Ab6dkEjFxFc/Technische-Details.pdf