I bought 2x4GB of Kingston 1333MHz PC3-10600 CAS 9-9-9-24 and installed it in my G53SX, and now I'm getting errors in MemTest86+. (MemTest86+ reports the timings as 9-9-9-24 as expected.)
The system came with 2x4GB Hynix 1333MHz DDR3 populated in the hidden RAM slot and one of the two slots on the bottom of the laptop.
I first populated the Kingston RAM in the two empty slots: the one beneath the keyboard and the other slot on the bottom of the computer. After I had stability problems, I ran MemTest86+ and got 6 errors in a complete pass. I also put the two Kingston sticks in the two slots on the back of the computer and the two Hynix sticks in the hidden slot and the slot below the keyboard and still had MemTest86+ errors.
With all 16GB installed, I get MemTest86+ errors. With 12GB installed, with the Hynix in the hidden slot and the slot under the keyboard and either Kingston stick in the slots on the bottom of the computer, it passes at least 1 pass of MemTest86+ (I was trying different combinations and didn't keep it running longer).
I'm confident that the RAM is good because with only one Kingston stick installed, it passes MemTest86+ with either Kingston stick.
Which slots should have the paired RAM sticks for reliable operation? Is there anything else I should try to get the RAM stable?
Also, is there a better way of naming/numbering the slots 0,1,2,3 or A0,A1,B0,B1? MemTest86+ changes which slot number is which physical position based on how many are populated, so I can't rely on that.