Question Laptop reports wrong RAM amount and Memtest86+ shows errors ?

[mightmaster92]

Hello, this one is kinda strange.

Laptop model: Asus X555DG

This laptop reports MORE memory than there actually is, 4gb stick reported as 8gb, and 8gb stick is reported as 12GB - in BIOS, Windows 10 task manager, and CPU-Z.

Another thing - in Memtest86+ v5.0.1 it managed to pass every test once without a single error, but then it reported errors in test 4, and after changing ram stick it caught errors right away. The ram stick shouldn't be faulty as it's completely new. Another interesting bit - "Err-Bits" is the same on both memory sticks.

BIOS is updated, tried default settings as well.

It seems the problem is either CPU or chipset going just by Memtest results, but i wonder how other points affect that diagnosis?

 

[Lutfij]

BIOS is upgraded, tried default settings as well
What BIOS version are you on at this moment of time?

Can you show a screenshot of what you see in CPU-Z? Please pass on an SKU to your Asus laptop. Pictures/links to the ram you're working with?

 

[mightmaster92]

BIOS version is 605
SKU is G5N0CV08M95420E
Memory sticks:
Initial - SK Hynix HMT451S6BFR8A

https://imgur.com/aIZt1Tb

https://imgur.com/Vqttz5L

Newer stick - AMD Radeon R538G1601S2S-U

https://imgur.com/zeWCE7I

https://imgur.com/5WdDQ64

 

[Eximo]

That system has 4GB of memory soldered onboard. So with no sticks installed you would still have 4GB.

Pretty sure the board also only supports single channel memory based on what we are seeing.

 

[mightmaster92]

Aha, so it is the ram issue, just with onboard ram. First time i heard about onboard ram, though i did find it somewhat weird that there was exactly 4gb 'surplus'.
Thanks.