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Old 05-16-2007, 05:29 AM   #1 (permalink)
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Default Help With Memory Problem

Hi guys, im back again

I had 2x512mb's (DDR333) running at 166mhz

Today i changed them to 2x1gb's (DDR400) running at 200mhz

The problem is that although my motherboard has recognized the RAM and its size (2GB) they are still running at 166mhz.



Also in my BIOS my RAM was recognized as DDR333

Im 100% sure that my motherboard supports DDR400

Why is this? Do i have to change any settings? I wen to my BIOS and couldnt see any option to change this

I was told there might be a jumper on the motherboard to change the speed to 200? Where is this?

Thanks

UPDATE :

I have tried breaking the dual mode by installing 1 ram in each colour but still my ram run at 166mhz

Here is a link to my motherboard : 939Dual-SATA2

And a link to its manual : http://www.asrock.com/Drivers/Manual/939Dual-SATA2.pdf

Last edited by AntonOle; 05-16-2007 at 06:38 AM.
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Old 05-16-2007, 07:42 AM   #2 (permalink)
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Default Re: Help With Memory Problem

sounds like ur mb only supports ddr333 because any faster ram is backwards compatible in order to function in ur system.
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Old 05-16-2007, 07:51 AM   #3 (permalink)
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Default Re: Help With Memory Problem

I sort of had this problem before. I have DDR-400, in my bro's computer, and it says it's running at 180MHz. So all I did was overclock.

Last edited by b1gapl; 05-16-2007 at 07:55 AM.
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Old 05-16-2007, 10:13 AM   #4 (permalink)
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Default Re: Help With Memory Problem

since my motherboard supports DDR400 shouldnt it be running at 200mhz? I mean i paid for 400 id like it to run at that... Any tips someone?

Thanks
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Old 05-16-2007, 10:30 AM   #5 (permalink)
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Default Re: Help With Memory Problem

Found this in a forum about my motherboard

Could someone please explain what i should do?

thanks

Quote:
What is "Flexibilitiy Option" in BIOS?
Please turn of Flexibility Option at all times, it's known to set your memory divider to 133MHz regardless of your setting in "Memory Clock" option.
What memory dividers are available?
Memory dividers can be set in BIOS.
In BIOS, goto "Advanced" -> "CPU Configuration"
set "Memory Clock" to

In this particular case of a CPU with mutiplier 10, i.e. 3200+
The available memory dividers are as followed:
200MHz = 10
166MHz = 12
133MHz = 15

You can utilize 3 more dividers using a tool called A64Tweaker.
In A64Tweaker, look for the drop down box named "MEMCLK Frequency", set it to
183MHz = 11
150MHz = 14
100MHz = 20

A64Tweaker - version 0.31 is recommended.

********************************
The formula for calculating memory speed:
MEM Speed = CPU Speed / divider
********************************

For example, if I OC my 3200+ to 2400MHz with memory clock set to 166MHz in BIOS. To find my memory speed using the formula "MEM Speed = CPU Speed / divider", my MEM speed is 2400 / 12 = 200MHz.

Here is the table for complete list of memory dividers. To use it,
1st. find the CPU multiplier you are using.
2nd. find the corresponding memory settings in BIOS/A64Tweaker, then you'll have the memory divider.

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Old 05-16-2007, 11:59 AM   #6 (permalink)
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Default Re: Help With Memory Problem

problem fixed running at 200hz
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Old 06-15-2007, 12:59 PM   #7 (permalink)
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Default Re: Help With Memory Problem

yay! but just curious how did you fix it?
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Old 06-15-2007, 01:46 PM   #8 (permalink)
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Default Re: Help With Memory Problem

He had to change the memory divider most likely since it was stuck on DDR-333 speed still probably.
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