Please check if this memory would work

MrCasualGamer · Jul 11, 2014

Hey,

Trying to upgrade some ram on my old system.

Old intel original motherboard

DP45SG with Q6600 cpu

2 GB DDR3 1066 Mhz ram

More ram of this type is no more available anywhere to upgrade in my area.
So I want to get 4 gb of 1333Mhz ram.

Now please confirm it for me that I can buy 2 sticks of

2 GB DDR3 1333 Mhz ram.

Also, as per documents below, this motherboard will not support 1 chip of 4 gb ram .. right?

This motherboard CAN support 1333Mhz .. right?

This motherboard can NOT support 1 chip of 4 gb ram .. right?

Now, after I pull out current ram, and put the new ram in 2 blue dimm 0 slots, do I have to change any bios settings?

How do I make sure that RAM I am buying is SPD ?

What other tech specs I should be looking for?

importantly, what will happen if I run all 3 sticks together? the old 2 GB 1066 Mhz chip in say black dimm slot and the 2 new 2GB 1333 Mhz rams in blue dim slots? .. if the mhz is different, will it work? .. i wont mind having 6 gb ram !

Product:http://ark.intel.com/products/34683/Intel-Desktop-Board-DP45SG
TechSpec:http://downloadmirror.intel.com/15995/eng/DP45SG_TechProdSpec.pdf

herrwizo · Jul 11, 2014

1) Yes, you can buy 2 sticks of DDR3 1333 MHz RAM
2) Your motherboard supports 8GB MAX, since it has 4 slots that means 4x2, so the max RAM module size you can use per slot is 2GB, yes
3) Your motherboard supports 1333MHz RAM, yes
4) Once you install additional 2x2 GB of 1333MHz RAM, all of your RAM will run at 1066 MHz, because your slowest module runs at 1066 MHz, and the system has to revert to the slowest present RAM speed to remain stable
5) Depending on your luck, since you are actually mixing RAM modules, you *might* have stability issues, but it doesnt have to happen
6) All your RAM wil run in single channel mode, which is slower. This is because you need to have either 2, or 4 modules of same type to run in dual channel

My final recommendation to you would be the following: get rid of that 1066 MHz module, and either run the system with 2 identical RAM modules for a total of 4GB RAM (you will be able to run them in dual channel and at their max speed of 1333 MHz), or purchase 4 modules (8 GB), but make sure you get dual channel certified kit comprising of 4 modules.

Provided you do that, you don't have to touch anything in BIOS.

MrCasualGamer · Jul 11, 2014

herrwizo :

1) Yes, you can buy 2 sticks of DDR3 1333 MHz RAM
2) Your motherboard supports 8GB MAX, since it has 4 slots that means 4x2, so the max RAM module size you can use per slot is 2GB, yes
3) Your motherboard supports 1333MHz RAM, yes
4) Once you install additional 2x2 GB of 1333MHz RAM, all of your RAM will run at 1066 MHz, because your slowest module runs at 1066 MHz, and the system has to revert to the slowest present RAM speed to remain stable
5) Depending on your luck, since you are actually mixing RAM modules, you *might* have stability issues, but it doesnt have to happen
6) All your RAM wil run in single channel mode, which is slower. This is because you need to have either 2, or 4 modules of same type to run in dual channel

My final recommendation to you would be the following: get rid of that 1066 MHz module, and either run the system with 2 identical RAM modules for a total of 4GB RAM (you will be able to run them in dual channel and at their max speed of 1333 MHz), or purchase 4 modules (8 GB), but make sure you get dual channel certified kit comprising of 4 modules.

Provided you do that, you don't have to touch anything in BIOS.

detailed and to the point reply ! thank you Sir.

herrwizo · Jul 11, 2014

Glad to help, sir

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Please check if this memory would work

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