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  Memory running at lower speed than maximum 
 Date Written 
Kevin Darras Jan 23, 2012, 02:47pm EST Report Abuse
Hi there,
First of all, thanks in advance, I've read some really helpful guys here.

I have a problem that was uncovered by Sandra diagnostics software.

I have an Inspiron 6400 with core 2 duo CPU.

My current memory bank bus speed is 2x266MHz.
My maximum memory bank bus speed is 2x333MHz.

I have 2 PC2-5300U RAM modules that clock at 333MHz.

Looking at my current bus speed, I conclude that my RAM is running lower than it should, namely at 266MHz instead of 333MHz.

Then I thought: what a waste of resources! What can I do to fix that?

I chatted with an operator at, but they couldn't give me an answer.

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Seth Hoffman Jan 23, 2012, 03:43pm EST Report Abuse
>> Re: Memory running at lower speed than maximum
I just checked on that model PC. On the spec sheet it says it's only 533Mhz for the memory which is 266x2. It looks like they used 667 (333x2) modules in the PC and it's just down clocking them. The Core 2 Duo does not have a built in memory controller so it's using whatever chipset controller Dell thought to use on that motherboard. The controller may only be capable of 533Mhz.

It may be adjustable in the BIOS, just depends on what BIOS/CMOS Dell used for the motherboard.

Hardware geek Jan 24, 2012, 12:57am EST Report Abuse
>> Re: Memory running at lower speed than maximum
You should try to contact with your hardware manufacturer's to seek for the possible solution.
It happens more often when you use any low quality of RAM that could do less than expected.


Kevin Darras Jan 24, 2012, 05:15am EST Report Abuse
>> Re: Memory running at lower speed than maximum
Thank you for your answers!



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