I've got 2 512 sticks of A-Data DDR2-800 memory. I'm overclocked @ 400 mhz, and my mem divider is @ 1:1.
My problem is that when I run memtest86 @ 9x400, I get an error or two in Test 7, Random Memory Sequence. I messed with voltages... up, down, sideways. I messed with the timings, 4-4-4-12, 5-5-5-15, 5-5-5-18, 5-6-6-20. When I run the same test @ 8x400, no errors what-so-ever. I see that the memory bandwidth increases with the OC, even though the memory maintains its 400 mhz speed. According to memtest86, it goes from 15650 mb/s @ 2.4 ghz, to 23526 mb/s @ 3.6 ghz. Now there are no noticable problems running the comp @ 3.6 ghz, runs all tests no problem. I like to be thorough when I OC, so that's why I ran memtest86. Getting that error kinda bugs me. I'm currently running 3.2 ghz just so I know everything's kosher.
Is it possible a particular memory can only handle so much bandwidth? I've bumped the mem clock up to as high as 440 mhz @ lower OC's, so I know the memory can handle a higher speed. Is it the memory controller? I've seen where my mobo has been OC'ed over 450 mhz.
I do know that increasing the clock has an effect on memory bandwidth....SiSanda shows it going from in the 5000s stock to the 7000s OC'ed to 3.6 ghz.
This memory is temporarily part of my system until I get 2x 1024 mb sticks of either 1000 or 1066 memory. It's going back into my G965 HTPC where it won't see these speeds due to lack of voltage settings.
Any thoughts on whether the memory or mem controller are bandwidth limited?
Thanks 8)
My problem is that when I run memtest86 @ 9x400, I get an error or two in Test 7, Random Memory Sequence. I messed with voltages... up, down, sideways. I messed with the timings, 4-4-4-12, 5-5-5-15, 5-5-5-18, 5-6-6-20. When I run the same test @ 8x400, no errors what-so-ever. I see that the memory bandwidth increases with the OC, even though the memory maintains its 400 mhz speed. According to memtest86, it goes from 15650 mb/s @ 2.4 ghz, to 23526 mb/s @ 3.6 ghz. Now there are no noticable problems running the comp @ 3.6 ghz, runs all tests no problem. I like to be thorough when I OC, so that's why I ran memtest86. Getting that error kinda bugs me. I'm currently running 3.2 ghz just so I know everything's kosher.
Is it possible a particular memory can only handle so much bandwidth? I've bumped the mem clock up to as high as 440 mhz @ lower OC's, so I know the memory can handle a higher speed. Is it the memory controller? I've seen where my mobo has been OC'ed over 450 mhz.
I do know that increasing the clock has an effect on memory bandwidth....SiSanda shows it going from in the 5000s stock to the 7000s OC'ed to 3.6 ghz.
This memory is temporarily part of my system until I get 2x 1024 mb sticks of either 1000 or 1066 memory. It's going back into my G965 HTPC where it won't see these speeds due to lack of voltage settings.
Any thoughts on whether the memory or mem controller are bandwidth limited?
Thanks 8)