3 memory cards on AsRock 890gx Extreme3

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Erkka Korolainen

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Jun 19, 2013
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Hi,

I have 2 identical 2gb memory cards on my motherboard. Can I install a third, 4gb memory on it as well? Or do I need to have 2 of the 4gb memories as well? (I already own one, so would need to get one more)

Thanks in advance :)
 
Solution
Tradesman1
If trying to run a combo like that (which will work, though in this case with all different sticks maybe not) the best arrangement is the 4GB sticks in slots 1-3 from CPU and the 2 GB in slots 2-4, will then prob need to do some voltage adjustments to the DRAM and the MC (memory controller) which is normally the CPU/NB voltage, will also prob need to raise the tRFC timing in the advanced timings - it can be done yes and all will run in dual channel, but as mentioned with the mix of sticks I wouldn't guarantee it
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johnnyb105

johnnyb105

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Feb 18, 2013
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is it a matched set? if not you may encounter memory problems. and then you realize if you have 4 slots for your not running dual ram. 1,2,3,4 ok 1,2 and 3,4 run each set of mem makes your pc faster you install ram in 1 and 2 fine add 3 then your not running dual ram
 
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Erkka Korolainen

Honorable
Jun 19, 2013
4
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10,510


So you're saying I should get another 4gb? I'm not sure what matched set means :(. Would it be ok to have one "set" of 2 2gb memories and one set of 2 4gb memories?
 
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johnnyb105

johnnyb105

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Feb 18, 2013
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ok say you built your pc you have 4 mem slot open ok 13 you add 2 gigs each that dual ok you add a 3rd stick of mem you don't have dual mem ok it makes its slower you need to pair them up like 2 x2 or 4 x 2 its faster sure 3 slots with mem will work but slower/
 
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Erkka Korolainen

Honorable
Jun 19, 2013
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10,510


Ok, I understand you now. So pairing 2x2 + 2x4 is not ok? Will not speed up my computer?
 
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Tradesman1

Tradesman1

Legenda in Aeternum
Jun 5, 2013
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If trying to run a combo like that (which will work, though in this case with all different sticks maybe not) the best arrangement is the 4GB sticks in slots 1-3 from CPU and the 2 GB in slots 2-4, will then prob need to do some voltage adjustments to the DRAM and the MC (memory controller) which is normally the CPU/NB voltage, will also prob need to raise the tRFC timing in the advanced timings - it can be done yes and all will run in dual channel, but as mentioned with the mix of sticks I wouldn't guarantee it
 
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Solution
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Erkka Korolainen

Honorable
Jun 19, 2013
4
0
10,510


Ok, that sounds like a bit too much of a hassle for me :D. I think I'll just sell the 2gb sticks and get another 4gb stick. Thanks for the answer :)
 
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