Unstable with 4 sticks

[xynyx]

I recently maxed out all 4 dimm slots with 16 gigs. (http://www.newegg.com/Product/Product.aspx?Item=N82E16820231314)

I ran memtest 86 on each stick individually in the dimm slots they would eventually end up in. I only ran 1 pass and they all checked out. When I booted up my system it crashed. I then ran the memtest86 again and some errors popped up when all 4 sticks were present. My BIOS has been updated to the most recent version. Is my RAM running too hot (I don't have a cool for them)? My system runs fine when I only have 2 sticks in and my mobo (ASUS M4A87TD EVO) says that it can handle 16 gigs (http://www.newegg.com/Product/Product.aspx?Item=N82E16813131647)

Any suggestions would be greatly appreciated.

 

[jsc]

Try increasing the RAM voltage a little up to a max of 1.65 volts.

Try relaxing the timing (increase the numbers).

 

[pharoahhalfdead]

What is the speed of your memory?

I had a mobo that allowed for 1066 ddr2 ram with two slots, but when four slots were occupied it could only support 800mhz. This might have the same type of limitations. Try setting the ram to a lower speed then work your way up.

 

[rage33]

Try increasing the RAM voltage a little up to a max of 1.65 volts.

Try relaxing the timing (increase the numbers).

+1 adjust ram voltage

 

[xynyx]

Thanks, I'll try increasing the voltage. The other thing I noticed was that when I had all 4 sticks in my BIOS auto detected the timings and set them to 11-11-11-28. I manually set them to 9-9-9-24. Should I set it back to auto detect? Also, performance wise, what is better, 8gigs running at 9-9-9-24 or 16gigs running at 11-11-11-28?

Thanks

 

[87ninefiveone]

Thanks, I'll try increasing the voltage. The other thing I noticed was that when I had all 4 sticks in my BIOS auto detected the timings and set them to 11-11-11-28. I manually set them to 9-9-9-24. Should I set it back to auto detect? Also, performance wise, what is better, 8gigs running at 9-9-9-24 or 16gigs running at 11-11-11-28?

Thanks

Unless you're running some insanely memory hogging video editing programs or 3D rendering stuff 16GB is way overkill for anything but servers. 4-8GB is plenty for daily use and 99% of most people's needs with a 64-bit OS. To answer the other part of your question 9-9-9-24 is quite a bit faster than 11-11-11-28 for benchmarking, but probably near indifferentiable to the casual user.

 

[clutchc]

I've found that some boards (Asus especially) are very very picky when all 4 slots are populated with the maximum amount of the fastest memory they are spec'd out to use. Follow the recommendations above.