Help me to set my ram MHz speed

Jitin Sharma · Oct 19, 2015

So recently I posted the question regarding the ram that my Windows 7 was showing me the 6GB but usable was 2.97GB is sloved.
But I found out that both my ram are running on 1088MHz on automatic mode.
The first one is of 1333MHz and other one is 1600MHz.
What should I do with the setting?
Should I change it?

Thanks

RJMadCat · Oct 19, 2015

How many ram chips do you have and what motherboard?

Are you familiar with Duelchannel on your motherboard? Are you familiar in what slots you must place your ram chips for it to work correctly in Duel channel?

Jitin Sharma · Oct 19, 2015

RJMadCat :

Hey
I have 2 ram chips one is Corsair Vengeance 1 x 4GB 1600MHz and other one is Kingston 1 x 2Gb 1333Mhz.

I have Biostar N68S3B :-
www.biostar.com.tw/app/en/mb/introduction.php?S_ID=517

No I don't know about that but my motherboard says it "Support Dual Channel DDR3 800/1066/1333"

Thanks

Tom Waller · Oct 19, 2015

I'm not sure as both sets are different MHz but maybe enable X.M.P?

Jitin Sharma · Oct 19, 2015

Tom Waller :

Hey

Where can I find that setting, I am unable to find that setting in my BIOS.

Thanks

RJMadCat · Oct 19, 2015

Firstly your motherboard does not support 1600 which could be the likely hood of the problem, Did you buy this 1600 module? Perhaps that was not the best thing to do. see if you can get a 1333 instead.

Tom Waller · Oct 19, 2015

Jitin Sharma :

Not too sure if this applies to you, but this link shows the common places of certain branded bios'.
http://www.anandtech.com/show/7364/memory-scaling-on-haswell/2

Let me know how it goes

RJMadCat · Oct 19, 2015

No XMP will not work it is Intel as far as I know.

Jitin Sharma · Oct 19, 2015

Tom Waller :

Jitin Sharma :

Not too sure if this applies to you, but this link shows the common places of certain branded bios'.
http://www.anandtech.com/show/7364/memory-scaling-on-haswell/2

Let me know how it goes

Thank you for that but my motherboard is not that reputed.

Jitin Sharma · Oct 19, 2015

Tom Waller :

Actually I got it from festival sale it was cheap and was good option for my future use that's why I brought that.
Can I set manual set to 1333MHz in the ram configure setting?

Shaun o · Oct 19, 2015

The reason why you should never mix ram with two different speed ratings has to do, with the timing settings or what we call latency values of the memory.

If you mix ram you run into problems because from one speed rating in Mhz the values will without doubt differ.

On auto settings the motherboard will try to find a speed setting where it can set the same latency values for each of the ram or memory stick inserted into the motherboard. And why even if one of your sticks is rated at 1333Mhz the value is lower or the same speed is selected for both memory modules.

Also if your on board memory controller only has the ability to run 1066Mhz memory as a max speed, your stuck to that value no matter how fast the actual memory speed is of the ram memory on the sticks are.

Place your highest rated memory stick in your first memory slot of the motherboard.
Then manual amend the timing values in the bios to the ones stated on the 1600Mhz memory stick in your bios.
If the board has the option to manually change the voltage to 1.65v per memory stick set that voltage setting

When you enable Xmp mode it increases the stock voltage of 1.5v to 1.65v to keep the memory stable and that it works at a higher rated speed and posts in the motherboard due to the extra Mhz overclocking frequency set on the memory.

From 1333Mhz to 1600Mhz this is how you would do it if the memory controller of the motherboard can handle a rating of 1600Mhz memory and detect it. In tern with the second memory stick in the second memory slot. it would force it to work at an extra Mhz value. often you can get away with 1333Mhz memory up to 1600Mhz providing the memory controller on the actual motherboard can handle the rated speed in Mhz to begin with. It can be down to the brand and quality of the memory chips used on the ram module though, and there tolerance.

RJMadCat · Oct 19, 2015

What CPU do you have with your motherboard, it could be that your CPU is lowering tghe speed to 1066 because that is what it is capable of

Jitin Sharma · Oct 19, 2015

RJMadCat :

Oh it is AMD sempron 145

Jitin Sharma · Oct 19, 2015

Shaun o :

The reason why you should never mix ram with two different speed ratings has to do, with the timing settings or what we call latency values of the memory.

If you mix ram you run into problems because from one speed rating in Mhz the values will without doubt differ.

On auto settings the motherboard will try to find a speed setting where it can set the same latency values for each of the ram or memory stick inserted into the motherboard. And why even if one of your sticks is rated at 1333Mhz the value is lower or the same speed is selected for both memory modules.

Also if your on board memory controller only has the ability to run 1066Mhz memory as a max speed, you stuck to that value no matter how fast the actual memory speed is of the ram memory on the sticks are.

Place your highest rated memory stick in your first memory slot of the motherboard.
Then manual amend the timing values in the bios to the ones stated on the 1600Mhz memory stick in your bios.
If the board has the option to manually change the voltage to 1.65v per memory stick set that voltage setting

When you enable Xmp mode it increases the stock voltage of 1.5v to 1.65v to keep the memory stable and that it works at a higher rated speed and posts in the motherboard due to the extra Mhz overclocking frequency set on the memory.

From 1333Mhz to 1600Mhz this is how you would do it if the memory controller of the motherboard can handle a rating of 1600Mhz memory and detect it. In tern with the second memory stick in the second memory slot. it would force it to work at an extra Mhz value. often you can get away with 1333Mhz memory up to 1600Mhz providing the memory controller on the actual motherboard can handle the rated speed in Mhz to begin with. It can be down to the bran and quality of the memory chips used on the ram module though, and there tolerance.

Thank you so much I will try that if it is possible in my case.

Tom Waller · Oct 19, 2015

RJMadCat :

XMP does work on Intel

RJMadCat · Oct 19, 2015

I might need to put in a comma so you do not misunderstand what I said Tom Waller

He has a AMD motherboard and XMP is for intel, not AMD.

Tom Waller · Oct 19, 2015

RJMadCat :

Haha, I was going to say XD
Apologies for the misinterpretation

Help me to set my ram MHz speed

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