RAM not Detected in BIOS, but....

turquato · December 3, 2019

So I have a stick of 2GB DDR3. when installed alone in a compatible board, nothing appears on display nor beeping sounds. but when another stick of ram is installed, the computer boots, but only a single stick is detected by the BIOS and the OS. But while using CPU Z, and a 4GB stick is installed together with the 2GB stick (ram in question). The 2GB stick appears but with very limited information displayed on CPU Z.

The 2GB stick has not been in use for quite some time but has been placed in its original container so to avoid damaging it.

What could have caused this problem?

Likwid · December 3, 2019

@turquato Had same problem, happens when you mismach ram in dual channel mode, try to use other ram slot

turquato · December 4, 2019

11 hours ago, Likwid said:

@turquato Had same problem, happens when you mismach ram in dual channel mode, try to use other ram slot

hey @Likwid thanks for the immediate reply.
I did try changing ram slots before.
I also did use just the single stick of ram on different boards supporting much higher frequencies.