Can mosts mobos handle 2x16 gb sticks of RAM

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Coop197823

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I bought my board a year and a half ago, and need to upgrade it to 64 gb of ram (running computer models). I have been searching and cannot find anything on what specs you need to have for your mobo to handle 4x16gb sticks of ram. Anyone know what is needed to run these sticks?

here is my current mobo: GIGABYTE GA-X79-UD5 - http://www.newegg.com/Product/Product.aspx?Item=N82E168...
 
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clutchc


If I interpret the specs correctly, 64GB would only be possible with 8 x 8GB, not 4 x 16GB... leading me to believe each slot can only address 8GB. Doesn't your MB manual shed any light on the slot capacity?
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clutchc

clutchc

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If I interpret the specs correctly, 64GB would only be possible with 8 x 8GB, not 4 x 16GB... leading me to believe each slot can only address 8GB. Doesn't your MB manual shed any light on the slot capacity?
 
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williamcummins

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Got this directly from the manufacturer's website :

''With a potential data bandwidth of up to 25GB/Sec and 256 Bits memory addressing, the Intel® X79 platform offers unrivalled memory performance. Supporting up to 64GB of DDR3 1600 memory (X79-UD5 only), GIGABYTE X79 series motherboards give you the ultimate performance for today's memory-intensive applications.''

Since it specifies that you can only run 64GB on the X79-UD5 model only (supposing its the model with 8 DDR3 slots), i think you will have to go with 8x8GB setup for this type of motherboard to reach 64GB.
 
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Coop197823

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Nothing that I could find anywhere, other than 8 slots at 1.5v up to 64gb at 1600 MHz (if in 4 channel).

The other issue than to get to 64gb at 8 slots. I currently have 4 sticks of http://www.newegg.com/Product/Product.aspx?Item=N82E16820231571. If I were to buy a 4 stick kit of http://www.newegg.com/Product/Product.aspx?Item=N82E16820231572&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID= there would not be any compatability issue correct?

Since my mobo only goes up to 1600 MHz ram when there are greater than 2 sticks in it, would it be better to go for http://www.newegg.com/Product/Product.aspx?Item=N82E16820231606&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID= which is cheaper, runs at 1600 MHz and has the same CAS of 9? The timinigs are slightly different. Since the timinigs are different would that cause a problem?
 
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williamcummins

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If you want to couple ram, you should consider buying the exact same model. Yes timing is important and is extremely tricky to tweak. By coupling the exact same model of ram sticks, you will be sure to run safely and at maximum performance. This is why I'd go with 8x8GB Ripjaws X series.
 
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clutchc

clutchc

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In a quad channel system (like std dual channel), you will risk timing issues if the 4 sticks are not bought in a matched set. Matched to timing, speed, voltage, manufacturer, and even date of manufacture sometimes. If this will be for serious work, I would not attempt to mis-match memory... even two different sets of 4. Not saying it won't work, it probably will.
 
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Coop197823

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Thanks both williamcummins and clutchc for your insights. Well so far 2 x the 2x8gb kits (for 4 total 8 gb sticks) g skill sticks has worked fine. I would assume then adding the 4x8 gb kit might be risky even though they have the same exact timings CAS, etc. Would adding 2 more 2x8gb kits be just as risky as adding the 4x8 gb kit? Thanks again!
 
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williamcummins

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I don't think it's a question of quantity. The only disadvantage of adding another 4x8GB rather than 2x8GB is that it costs the double hehe... Since Ripjaw X series is a common model i don't think that you will have any issue by adding another set of these to your system. But you could try... (worst thing to happen is that you end up with a spare set of excellent ram sticks that you can keep as backup or sell back to someone you know).
 
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Coop197823

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Thanks again!
 
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