Memory frequency

June 1, 2009 at 11:59:11
Specs: Windows XP, Amd Anthlon XP 2.43GH/Kingmax DDR 1.0GB
I am very confused on the whole memory thing. I overclocked my CPU to 12x203 at 1.9v and it is stable. Now I have two Kingmax memory sticks each 512mb DDR. I am confused at the timings.One is at 133 mhz and the other one is timed at 200 mhz. They are both capable to run at 400mhz. How do you I changed that? Should I changed that? I have NF7-S mother board. Please help me out.
Thank you.

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June 1, 2009 at 13:48:33
RAM can be a little confusing. What you're asking about is the RAM speed, not the timings. Timings is a completely different issue. Since you have DDR RAM, there are generally 3 different choices...DDR266, DDR333, DDR400. And because they are DDR, the speed can be refered to as either the bogus DDR speed or the actual speed (aka frequency).

Here's how they breakdown:

DDR266 (aka PC2100) = 266MHz DDR = 133MHz actual
DDR333 (aka PC2700) = 333MHz DDR = 166MHz actual
DDR400 (aka PC3200) = 400MHz DDR = 200MHz actual

It appears that you have a mix of DDR266 & DDR400. Since DDR266 can't run at DDR400 speed (200MHz), the DDR400 has to drop it's speed to match the DDR266 (133MHz).

Socket A systems should run with the FSB:DRAM at other words, CPU at 200MHz : RAM at 200MHz. You're running it at 203MHz : 133MHz so the DDR266 RAM is choking your system's performance.

Get rid of the DDR266 & replace it with another stick of DDR400.

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June 1, 2009 at 14:01:02
Thank you for the quick respond. They are both DDR400. I have them in different slots. Instead of putting them in slots 1 and 2 I have them in slots 2 and 3. In the manual it said that if I do that I will get dual channel or something along those lines..

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June 1, 2009 at 14:08:43
I am using Everest to support this data. Here is what it says.
@ 133 MH 2.0-3-3-6 (CL-RCD-RP-RAS) / 8-10-2 (RC-RFC-RRD)

@ 200 MHz 2.5-4-4-8 (CL-RCD-RP-RAS) / 12-14-2 (RC-RFC-RRD)

That's under the memory timing tab.
Should I switch the ration in my BIOS?
I changed the memory sticks around and it does not make any difference.

It also says this Memory Speed PC3200 (200 MHz).
If you need any more information please let me know.
Again thank you for your help.

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Related Solutions

June 1, 2009 at 14:20:46
One more thing, If I don't have the memory sticks in slots 2 and 3 then when I boot up the computer it does not say DDR Dual Channel Enable. So I will leave the memory sticks in slots 2 and 3 to have the Dual Channel.

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June 1, 2009 at 14:46:41
Try using CPUZ instead of Everest:

The SPD tab will tell you what the RAM is capable of....the memory tab will show you what speed it's actually running at.

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June 1, 2009 at 15:01:03
Oh okay thank you. On the CPU-Z it says my DRAM freq. is 202.7 MHZ. My ratio is 1:1 is that okay? Or should it be something different?

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June 1, 2009 at 16:11:31
"My ratio is 1:1 is that okay?"

That's exactly what you want!

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