Issues with RAM

WolvenHeart · September 16, 2020

Hello there technical gurus,

Here is hoping you can help out with an issue that no amount of Google-ing can seem to solve.

My specs are:

ASUS z190 pro gaming MOBO

i5 6600k CPU

Corsair H60 CPU cooler

Fury 2133MHz 2x4 DDR4 RAM

RTX TUF 2060

Corsair TX650M PSU

Samsung SSD and HDD

Everything was working fine until I decided to replace my two sticks of RAM (4GB each) with a pair of 8GB DDR4 sticks. I made sure the new pair was compatible with the MOBO (they were). The new pair run on the same frequency as the old pair (2133 MHz), but the manufacturer is different (I went with Corsair LPX). When trying to install the new pair of sticks, the system declines to boot (CPU led flashes red momentarily, then the DRAM led turns red indefinitely) with both sticks inserted. It boots fine with a single 8GB stick in DIMM B1 or B2, respectively. I have tried the following to remedy the issue:

1. Made sure the sticks are properly inserted.

2. Tried all manner of combinations.

3. Reverted to the old 4GB pair of RAM to see if the issue persisted (it did not).

4. Tried enabling XMP.

5. Tried overvolting slightly.

6. Tried to see if some CPU pins were misaligned/bent (a few potentially were, and I evened them out to the best of my ability)

7. Tried unplugging/re-plugging everything.

8. RMAed the new RAM and got a new pair, but the issue yet persists.

Is the MOBO at fault? If so, how come does it accommodate two 4GB sticks, but only a single 8GB stick?

Please advise.

September 16, 2020

Corsair LPX is essentially a "value" ram in choice trending to have SK Hynix low binned ICs.

Best bet is to return the memory and do a tad bit of research for a set that will do well with your system. And it does not have to be on the grossly dated QVL list either.