Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: 3x2gb + 1x4gb Ram configuration possible?

10 Oct 2014   #1

Windows 7 Professional 64-bit SP1
3x2gb + 1x4gb Ram configuration possible?

Currently have this in my system -

3x2gb 1600 (9-9-9-28)

I have one ram slot left on the mobo, can I just simply put a 4gb stick in it to total 10gb ram and what specs will i have to match with the existing ram.

Or is this a stupid idea and will cause system to be unstable?

p.s I know i'll lose the triple channel.


My System SpecsSystem Spec
10 Oct 2014   #2

Windows 8

It is possible to mix different sizes like you want but you'll lose dual/triple channel.

3 things to check though :
* Make sure your motherboard supports the new memory sticks model (go to your MB's manufacturer site, there should be a page about compatible memory)
* Check that new stick has the same timing and voltage that the ones already installed (should be in the specs of the memory).
* Check what's the max total memory size your motherboard can support. There's also a memory limit by slot (say Max 2 GB by slot for example), which depends on the motherboard (check its specs on the manufacurer's site or in your manual)
My System SpecsSystem Spec
10 Oct 2014   #3

Windows 7 Professional 64-bit SP1

Thank you this is helpful. My mobo is gigabyte EX58-UD3R, I will check all the specs and make sure any new ram is compatible, I know it can hold 16gb max though.

So to clarify I need to make sure:

The timing is the same, mine are 7-9-9-28 and I have to find a 4gb stick matching that right?
Voltage is 1.5
I should also match speed right of 1600mhz?

And as long as I match all those it will work?

I'll lose triple channel and it will run in single channel 10gb I presume, or will be 4gb in duel and 6bg in single?....either way both will be faster than 6gb triple I'm hoping. It's for 3d programs and photoshop where ram gets high.

Thanks again
My System SpecsSystem Spec

10 Oct 2014   #4

Windows 7 Pro 64 bit

In theory any combination of compatible RAM should work. But things don't always work that way in the real world. Any mismatch such as a different module size, specifications, or even manufacturer may cause problems. There is no way of knowing without trying it.

For best results it is best to always use matched modules.
My System SpecsSystem Spec
10 Oct 2014   #5

Windows 8

Yes you "should" be good, it highly dependent on what your motherboard supports. And mixing-matching can sometimes (rarely but it happens) lead to incompatibilities : with the MB, between the DDR modules, and some MB don't like when mixing single-sided (chips on one side only) DDR with double-sided (chips on both sides) DDR.

Having the same speed (Mhz) should be better, but it's mainly for overall performance. If they are not the same the motherboard will fall back to the speed of the slowest memory module. If the memory stick you're buying is faster, you'll have the same performance as with your old memory sticks.

Here is 2 interesting articles that explain more :
What Are The Rules On Mixing Two Different Types Of RAM? | Lifehacker Australia
Mixing Brands of DDR Memory
My System SpecsSystem Spec
14 Oct 2014   #6

Windows 7 Professional 64-bit SP1

Thank you everyone!
My System SpecsSystem Spec

 3x2gb + 1x4gb Ram configuration possible?

Thread Tools

Similar help and support threads
Thread Forum
SSD & HDD Configuration
Hi I've recently fitted a 128Gb SSD to my PC. I've re-installed Windows7 on the SSD and re-connected the old HDD. Everything is working fine but I've noticed that the space on the SSD is decreasing rapidly as I reload all my usable programs. My question is: Can I configure this PC so that only...
General Discussion
ssd configuration
I just installed ssd in my computer and it doesn't show up in the explorer - I'm assuming that's because it isn't formatted yet. So I went into the computer management screen and the ssd is there as "not initialized". A dialog came up saying the ssd disk must be intialized before the logical disk...
Hardware & Devices
1x4GB VS 2x2GB additional RAM -- Does It Matter?
Hey and Merry Christmas to all of you, I am going to upgrade my RAM soon and I was wondering if there was a difference between adding one chip of 4GB or a pair of two, 2GB each. I already have 2x2GB (see my motherboard in my Specs) and I have two slots available so it wouldn't really make a...
Performance & Maintenance
Will 7 run well on this configuration?
I have been very happy with XP (mostly desktops) and have completely avoided Vista for our company. I have no experience with Windows 7. I am ready to upgrade our sales personnel to laptops and am wondering if I will be happy with the speed of the following setup: Intel Core 2 Duo 1.66 GHz ...
Performance & Maintenance
VLC Configuration
For whatever reason, I have to reset the video configuration each time I open the player for a movie, because it will not retain those settings once the player is closed. This caused me to look for a means of setting these value permanently. I found two files that are involved to an...
My Configuration: 32 or 64?
Hello folks, i have the folowwing PC: AMD 64 3800 single core 4gb DDR2 800 HD 160gb Video 256mb Should i install 32 or 64 version?:huh:
General Discussion

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 07:18.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App