Memory running at 6-6-6-20 Memtest errors only in Slot 3 Help

[Gemini25]

My computer usually has problems after I boot up after it being off all night. I can't figure out what the problem is and memtest found no errors even though I ran it several times for 8+ hours. I get blue screens sometimes with the stop code 50 which is supposed to be a memory issue.

Here is the RAM I am using
http://www.newegg.com/Product/Product.aspx?Item=N82E16820211409

and Motherboard:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128512


I took my ram out of the third slot and ran memtest with 2 gigs of it still in slot #1. I only did it for 2 hours, it had 7 passes with no errors. It was running at CAS: 8-8-8-24, which I had to set it to that in BIOs because it defaults at 9-9-9-27

When I stopped it and put back in the other stick into slot 3, and took out the first slot, it shows the CAS as 6-6-6-20... I don't know why it's showing the third DIMM slot as running my ram at DDR-1463 and 6-6-6-20 cas. It also has errors... So far it's had 1 pass with 25 errors.

Does this mean it's just the ram that is faulty and not the actual mother board? Any help would be appreciated.

 

[ko888]

To operate your memory in Dual Channel mode place one DIMM in the DDR3_1 memory socket and the other DIMM in the DDR3_2 memory socket.

Your ADATA AX3U1600GB2G9-2G has 9-9-9-24 timings at 1.65 Volts when running at DDR3 1600 (PC3 12800). It appears that the DIMMs don't have an XMP profile so you have to manually set the correct memory speed, timings and voltage in the motherboard's CMOS Setup Utility.

For the Sandy Bridge CPU's Intel recommends using DIMMs with a voltage of 1.50 Volts to prevent damage to the integrated memory controller on the CPU die. I'm not saying that 1.65 Volt memory won't work, just don't set the DDR Voltage above 1.65V in the CMOS Setup Utility.