M4A785TD-V EVO memory upgrade for Win7x64

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PlainFaceBoy

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Dec 29, 2013
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Hi - I've got a M4A785TD-V EVO mobo, with a Phenom II X4 945 CPU, and 2x2GB DDR3 1333 Ram (XMS3, PC3-10666 CAS9 (CM3X2G133C9D)). Currently running XP, all fine.

I want to upgrade to Win7 64 bit on an SSD and would like to upgrade RAM to make full use of 64bit . 16GB is max mobo can take?

As install (including all software) will be a pretty big job I want to keep XP running as well until migration complete. Should I move to Win7 on exisitng RAM, and when I finally switch off XP (in several months) upgrade, or could I upgrade RAM now and start the move?

Either way, what would be the best way to upgrade RAM - could I keep my existing 4GB? (I'm guessing add 2X4GB more - only 12GB I know but better than my current 3.5!)
or do I have to have 4x4GB, and if so which memory would work, with XP x86 and Win7 x64?
Do I need to upgrade my BIOS etc?? (currently 0407 09/04/2009).
Thanks for any help.
 
Solution
pit_1209
If you buy a higher speed ram the mobo it´s going to set it with the lowest frecuency of the group. eg: 2x2 1333mhz and 2x4 1600mhz you´re going to get 12GB at 1333mhz. Try to buy the same brand of ram that you already got so less compatibilities issues but i don´t think you should come into any problem, if anything happen just stay with 2x4GB in dual channel that will benefit you more than 12GB in single channel.
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pit_1209

pit_1209

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Jan 9, 2012
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No, ram is not that complicated to upgrade my friend. You can buy the ram now but windows just will use 3.5 as it is now so it isn´t worth it, is better to update to 7 x64 in fact you should have done that years ago. That many ram is just useful in working situations with specifics softwares with 8 gb you´ll be great try to buy it in 2 so can get a boost with dual channel and yes 16 gb is the max the mobo can take.
 
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PlainFaceBoy

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Dec 29, 2013
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Thanks for reply,
I've read a few reports that suggest this motherboard might be fussy about which RAM and the configurationof RAM?
(eg 2x2GB + 2x4GB would be ok? in either slots etc?).....
Is there something about the RAM running at less speed if all 4 slots are used?
I also wanted to check if there were other issues re. RAM including configuration and Win7X64.
 
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pit_1209

pit_1209

Distinguished
Jan 9, 2012
833
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19,360
If you buy a higher speed ram the mobo it´s going to set it with the lowest frecuency of the group. eg: 2x2 1333mhz and 2x4 1600mhz you´re going to get 12GB at 1333mhz. Try to buy the same brand of ram that you already got so less compatibilities issues but i don´t think you should come into any problem, if anything happen just stay with 2x4GB in dual channel that will benefit you more than 12GB in single channel.
 
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