Mix 3x2GB DDR3 (1333mhz) and 1x4GB DDR3 (1600 mhz)?
- Thread starter AadhiL MR
- Start date
velocityg4
Glorious
- Nov 21, 2006
- 5,390
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Sure you can mix all of them. If this is an LGA 1366 board with triple channel memory. Your memory performance will downgrade from triple channel to single channel. For the most part having more RAM is of greater benefit than the triple channel performance. There are just a few memory intensive tasks where RAM speed matters.
As far as the RAM speed difference or timing differences. The 3x2GB and 1x4GB will automatically be clock to the highest common clock rate and lowest common timings supported by the RAM and Motherboard.
The only other potential problem is if your motherboard does not support 4GB modules or has a RAM limit of 8GB. Most likely it supports at least 16GB and 4GB modules.
As far as the RAM speed difference or timing differences. The 3x2GB and 1x4GB will automatically be clock to the highest common clock rate and lowest common timings supported by the RAM and Motherboard.
The only other potential problem is if your motherboard does not support 4GB modules or has a RAM limit of 8GB. Most likely it supports at least 16GB and 4GB modules.
IF it works together, it will have to run on the highest common frequency and highest timings. You should first get JEDEC timings from one set and then the other, then set it to 1333MHz (it's 667MHz in real, double data rate) with highest timings on this frequency (ie. if one module is CL7 and other CL9, you need to use CL9).
There is always risk they just won't work together, but your frequencies and DDR3 are rather low/old so the chances are quite decent. Also check your motherboard to use suggested RAM slots, it might help. In case of issues, check out whether there is a newer BIOS improving RAM compatibility/stability.
Strongly depending on the use case your system performance may go up but also down, you need to test it out to figure out whether you are suffering on RAM capacity or RAM throughput.
... And, make sure both old and new RAM modules run with same voltage!
There is always risk they just won't work together, but your frequencies and DDR3 are rather low/old so the chances are quite decent. Also check your motherboard to use suggested RAM slots, it might help. In case of issues, check out whether there is a newer BIOS improving RAM compatibility/stability.
Strongly depending on the use case your system performance may go up but also down, you need to test it out to figure out whether you are suffering on RAM capacity or RAM throughput.
... And, make sure both old and new RAM modules run with same voltage!
- Jan 8, 2017
- 12
- 0
- 1,520
i have 4 slots and tried inserting them different ways . loading up all these rams does not boot my pc
my mobo: http://www.gigabyte.in/products/product-page.aspx?pid=4567#ov
pls help me and thnx in advance
velocityg4
Glorious
- Nov 21, 2006
- 5,390
- 471
- 46,440
Have you tried the 4GB by itself? Just to make sure that it works. The spec page says it requires 1.5v memory. Also is it Non-ECC?
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