I've got my P4 3.2GHz overclocked to 3.8GHz. Here's how I did it. CPU 239x16=3822.9 CPU Freq:Mem = 1:3.3 DRAM Freq setting = 667 (running @ 797) Timings = 5-5-5-13 I did not change any voltage settings My questions, is my ram running close to 1:1? Is there anything I can change to improve on this? And, how do I know if my memory is running in dual channel mode? I've read that some boards require you to put the memory in specific slots. I just put them in DIMM1 and DIMM2. My manual says nothing about this. Only that it supports dual channel.

239 x 4= 956 DDR2 800 for pentium 4 800FSB, or DDR2 1067 for 1067FSB. running 1:1 is a myth, check my other thread about this, plenty of benchmarks to stare at and drool over. Pentium 4's, and core's are quad pumped(x4), Athlons are double pumped(x2). The fact your running your DDR2 667 at almost 800 is interesting. Have you tried running 4-4-4-12? 2cas. Core 2 Duo 1.86

1:1 is NOT a myth! "check my other thread about this, plenty of benchmarks to stare at and drool over" Correct. Unfortunately Outland puts his own spin on the data. If you interpret it correctly, you will see that 1:1 is optimal. "is my ram running close to 1:1?" No. Your CPU frequency is at 239MHz & your RAM frequency is at approx 398MHz. Your ratio is 239:398 or approx 2:3.3...I don't know why you have it listed as 1:3.3? (See EDIT below...that *might* explain why). If your want 1:1 ratio with the CPU frequency at 239MHz, your RAM frequency should also be set at 239MHz. Simple as that. And just to be clear (because I think this is where a lot of the confusion lies), the frequency is the base speed setting...not the DDR rating or quad-pumped FSB. DDR667 runs at 333MHz, not 667MHz. EDIT: I have seen several sites refer to the optimal ratio as 1:2. It can be referred to in those terms provided you realize that the RAM in that case is the DDR speed, not the base frequency. In other words, with the CPU at 239MHz, the RAM should run at 478MHz (DDR).

jam, I'm a firm believer of the "myth". My ram is ddr2 800, I turned the frequency down to 667 so as I upped the FSB my ram wouldn't be running over 800. My X38 board has an option to change the CPU Frequency:Memory Speed (I'm assuming this is the multiplier rate that it will use to increase the memory frequency as you increase the FSB) The options are, Auto, 1:2, 1:2.4, 1:2.5, 1:3, 1:3.3, 1:4. The auto setting had it at 1:4 I changed it to 1:3.3 and kept increasing the FSB until my ram was running at 797 DDR speed. So how am I doing? Is my set-up faster now that it's at 3.8 GHz with the ram running close to it's original 800MHz speed? It sure seems faster. And does this help you tell me if I'm close to 1:1? Also can you answer how to tell if my memory is running in dual channel? Thanks for the help jam.

Try the CPU Frequency:Memory Speed at 1:2, then run CPU-Z, click on the Memory tab & see what is listed for Frequency & FSB:DRAM. If the 1:2 setting works as I think it does, it *should* list the memory Frequency as 239MHz, FSB:DRAM as 1:1. http://www.cpuid.com/cpuz.php

BTW, CPU-Z will also tell you if you're running dual or single channel mode. It's listed on the same screen (memory tab).

Okay. Thanks.