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Looking for support about upgrading RAM.


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#1 Miker2808

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Posted 30 March 2015 - 07:54 AM

Hello,

I'm planning to upgrade my ram, and i'd like to ask for some help, tips etc, and answer me what would be better to do.

i have not new and of course not gaming motherboard, and i have 2gb of DD2 RAM 400mhz,

i'm planning to upgrade my ram to 4gb (my motherboard support max 4gb and it allows me to connect two ram cars, (2gb+2gb), not sure if 4gb in one card.

i want to buy more 2gb of DDR2 ram, and i found for sale only 800mhz and 664(+-)mhz, and i'm not sure do mhz are really so important in the ram? or space worth more?.Because the difference of 664mhz and 800mhz is only in 1$ or less. i know if i will upgrade 800mhz with 400mhz i can run them only with 400mhz clock (to get 4gb ram). i want to ask, how much important the mhz of the ram is? (this is my main question, i'd like to have some tips too)

 

if it would help there is my spec.

 

windows 7 home premium 64bit (purchased)

Pentium Dual-Core CPU E5400 2.70GHz

‎2.00GB Single-Channel DDR2 @ 399MHz (6-6-6-18)

ASUSTeK Computer INC. P5KPL-AM (Socket 775)

1023MB NVIDIA GeForce GT 630 (NVIDIA)

 



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#2 Serpius

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Posted 30 March 2015 - 12:34 PM



Hello,

I'm planning to upgrade my ram, and i'd like to ask for some help, tips etc, and answer me what would be better to do.

i have not new and of course not gaming motherboard, and i have 2gb of DD2 RAM 400mhz,

i'm planning to upgrade my ram to 4gb (my motherboard support max 4gb and it allows me to connect two ram cars, (2gb+2gb), not sure if 4gb in one card.

i want to buy more 2gb of DDR2 ram, and i found for sale only 800mhz and 664(+-)mhz, and i'm not sure do mhz are really so important in the ram? or space worth more?.Because the difference of 664mhz and 800mhz is only in 1$ or less. i know if i will upgrade 800mhz with 400mhz i can run them only with 400mhz clock (to get 4gb ram). i want to ask, how much important the mhz of the ram is? (this is my main question, i'd like to have some tips too)

 

if it would help there is my spec.

 

windows 7 home premium 64bit (purchased)

Pentium Dual-Core CPU E5400 2.70GHz

‎2.00GB Single-Channel DDR2 @ 399MHz (6-6-6-18)

ASUSTeK Computer INC. P5KPL-AM (Socket 775)

1023MB NVIDIA GeForce GT 630 (NVIDIA)

 

 

Miker,

 

Here is the recommended memory upgrade. Don't get all tied up on MHz and whatnot.

 

I looked up your motherboard specs. As shown below, this is the maximum memory modules that your computer can support. 

 

 
Memory: Crucial 4GB (2 x 2GB) DDR2-1066 Memory  ($68.99 @ Amazon) 
Total: $68.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-03-30 13:34 EDT-0400


#3 DJBPace07

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Posted 31 March 2015 - 05:18 AM

In real-life situations, a few MHz. difference in RAM speeds won't make much of a difference.  The only real exception to this is with an AMD APU where speed is preferable, but you aren't using an APU.  Based on your motherboard specifications, it takes DDR2 1333/1066/800.  It can also take DDR2-1600, but that is an overclock speed.  You can only have a maximum of 4GB though. 

 

DDR2 is an older technology and becoming more difficult to find, especially at the higher speeds.


3939.png

 


#4 OldPhil

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Posted 31 March 2015 - 07:12 AM

It is a good idea to match the sticks.


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#5 jonuk76

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Posted 02 April 2015 - 06:42 AM

Your existing memory is very likely to be DDR2-800 (aka PC2-6400).  DDR2-400 (PC2-3200) is a standard, but extremely uncommon apart from ECC modules used in servers and workstations.

 

Basically DDR memory operates at half it's "rated speed" and transfers data twice per clock cycle (hence Double Data Rate).  So DDR2-800 actually operates at 400mhz, DDR2-1066 actually operates at 533mhz etc.  

 

Why this is relevant is that some software reports the clock doubled speed, and others report the true speed.  Things like CPU-Z report the true speed in mhz, so a DDR2-800 module will be reported as running as 400mhz (or close) by this program.


Edited by jonuk76, 02 April 2015 - 10:09 AM.

7sbvuf-6.png


#6 Miker2808

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Posted 06 April 2015 - 05:12 AM

I purchased one card of DDR2 - 2gb - 800mhz ram, and used it with my 2gb DDR2 400 mhz ram.. everything is working and i got 4gb of ram. but my speed is not 400mhz for both. its 333.3mhz for both. i dont really understand why. can you please tell me why. and if its possible to change it to 400mhz?



#7 Serpius

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Posted 06 April 2015 - 05:17 AM

I purchased one card of DDR2 - 2gb - 800mhz ram, and used it with my 2gb DDR2 400 mhz ram.. everything is working and i got 4gb of ram. but my speed is not 400mhz for both. its 333.3mhz for both. i dont really understand why. can you please tell me why. and if its possible to change it to 400mhz?

 

Miker,

 

This is because the computer will automatically take the 800 MHz RAM module and downshift the speed to be equal to the 400 MHz RAM module. This is done for compatibility reasons.

 

Purchase another 800 MHz RAM module and remove the 400 MHz module, put the 800 MHz RAM module in it's place. Now, everything will run at or near the 800 MHz speed.



#8 Miker2808

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Posted 06 April 2015 - 05:29 AM

The question is why is it 333.3mhz and not 400mhz if my minimum mhz is 400?, i know about the downshift..



#9 Serpius

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Posted 06 April 2015 - 05:34 AM

The question is why is it 333.3mhz and not 400mhz if my minimum mhz is 400?, i know about the downshift..

 

Miker,

 

I am thinking it's more of a motherboard limitation as opposed to having mismatched RAM module speeds.

 

Since we don't know the exact make of the motherboard that you have now, I would be guessing that it's a motherboard limitation.



#10 Rod_58

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Posted 17 July 2015 - 10:28 PM

Hi All,

 

I have a similar question.

 

My Compter is a :

 

Lenovo - 57077198. REV:1.4

Mother Board - GA - T672FXME

CPU - Socker 775LGA Core DUO E4600 2.4ghz

RAM - DDR2 333.3 2x1gb

 

I would like to update the RAM to 4gb annd upgrade the CPU to the max it will take.

 

Can you advies me on this please?

 

Many thanks

 

Rodger



#11 Buzzsaw

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Posted 19 July 2015 - 06:06 PM

Hi All,

 

I have a similar question.

 

My Compter is a :

 

Lenovo - 57077198. REV:1.4

Mother Board - GA - T672FXME

CPU - Socker 775LGA Core DUO E4600 2.4ghz

RAM - DDR2 333.3 2x1gb

 

I would like to update the RAM to 4gb annd upgrade the CPU to the max it will take.

 

Can you advies me on this please?

 

Many thanks

 

Rodger

 

Rodger,

 

I recommend that you start a new thread for this. You're adding onto a thread that is about 4 months old.

 

Not too many people will pay much attention to it.



#12 Rod_58

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Posted 26 July 2015 - 02:25 AM

Ok thanks






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