Help With Memory Problem - Techist - Tech Forum

Go Back   Techist - Tech Forum > Computer Hardware > New Systems | Building and Buying
Closed Thread
Thread Tools Display Modes
Old 05-16-2007, 04:29 AM   #1 (permalink)
True Techie
Join Date: Nov 2005
Posts: 136
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?



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 :

AntonOle is offline  
Old 05-16-2007, 06:42 AM   #2 (permalink)
Master Techie
baron5's Avatar
Join Date: Feb 2007
Location: Australia
Posts: 2,984
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.

<<<Please give me Rep if I have helped you<<<

I7 930 @ 4GHz : Noctua D-14
Gigabyte X58A-UD7 : Asus GTX 480
G.Skill Trident 1600MHz 6-8-7-18 : Samsung F3 1TB
OCZ Vertex 2 50GB : Silverstone RV02 Case
Silverstone Strider Plus 1Kw : Sony DRU-870s Optical
Samsung P2350 Monito

baron5 is offline  
Old 05-16-2007, 06:51 AM   #3 (permalink)
Mod Emeritus
b1gapl's Avatar
Join Date: Nov 2004
Location: USA
Posts: 13,044
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.


b1gapl is offline  
Old 05-16-2007, 09:13 AM   #4 (permalink)
True Techie
Join Date: Nov 2005
Posts: 136
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?

AntonOle is offline  
Old 05-16-2007, 09:30 AM   #5 (permalink)
True Techie
Join Date: Nov 2005
Posts: 136
Default Re: Help With Memory Problem

Found this in a forum about my motherboard

Could someone please explain what i should do?


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.
AntonOle is offline  
Old 05-16-2007, 10:59 AM   #6 (permalink)
True Techie
Join Date: Nov 2005
Posts: 136
Default Re: Help With Memory Problem

problem fixed running at 200hz
AntonOle is offline  
Old 06-15-2007, 11:59 AM   #7 (permalink)
True Techie
Join Date: Jun 2007
Posts: 110
Default Re: Help With Memory Problem

yay! but just curious how did you fix it?
Shane12m is offline  
Old 06-15-2007, 12:46 PM   #8 (permalink)
Renowned Budgeting Master
Join Date: Nov 2006
Location: Uniontown, PA
Posts: 4,153
Send a message via AIM to Sora
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.

E6300 w/ Arctic Freezer Pro 7 @ 3.6ghz 1.4Vcore
Antec 900 Case
EVGA 750i FTW Mobo
4x1GB of G.skill DDR2-800
2 8800GT in SLI
22" Samsung Syncmaster
1 250GB WD and 1 Seagate 7200.10 in RAID 0
Corsair 520HX 3DMark06 Score: 13900
Sora is offline  
Closed Thread

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Dhcp leasing problem Kloppstock Computer Networking and Internet Hardware 12 05-13-2007 06:13 PM
Memory MOdules Problem - Timings Please Help babistor Hardware Repairs and Troubleshooting 0 05-03-2007 04:57 AM
Chronic Rebooting Problem AND_YOU_ARE Hardware Repairs and Troubleshooting 1 04-24-2007 05:04 PM
Need some help choosing memory before I buy today guitarplyrstevo New Systems | Building and Buying 6 04-02-2007 01:52 AM
Is Vista seeing memory on my 8800GTS 320MB wrong? phexac Microsoft Windows and Software 2 03-25-2007 11:03 PM

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 09:22 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.