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argoz17
November 17th, 2011, 07:38 PM
So I am building a computer. Using the AMD Athlon II as m CPU...getting it from newegg...one guy in the review says it limited to DDR2-800 or DDR3-1066, the RAM im getting is Corsair Vengeance that is DDR3 1600 (PC3 12800). Will this work with my CPU?

CharlesA
November 17th, 2011, 07:40 PM
The memory will downclock to the speed that the mobo/cpu supports.

My memory can run at 1600, but I'm running it at 1333 since 1600 causes stability issues for some reason and I don't feel like wasting time troubleshooting it when 1333 is almost as fast as 1600.

3Miro
November 17th, 2011, 08:26 PM
The RAM is dependent on the motherboard and motherboard chipset, not the CPU. All Athlon II CPUs that I see on Newegg show that they fit AM3 socket, which implies newer chipset. You maybe limited in the memory specs, but you have to give tell us the motherboard.

CharlesA
November 17th, 2011, 08:28 PM
The RAM is dependent on the motherboard and motherboard chipset, not the CPU. All Athlon II CPUs that I see on Newegg show that they fit AM3 socket, which implies newer chipset. You maybe limited in the memory specs, but you have to give tell us the motherboard.

Yep. I think all AM3 mobos can handle DDR3 at 1066, 1333, 1600 and maybe higher depending on the mobo.

Bandit
November 17th, 2011, 11:29 PM
Most the CPUs have their own integrated ram controller, but your still limited by the slowest part.

3Miro
November 17th, 2011, 11:43 PM
Most the CPUs have their own integrated ram controller, but you're still limited by the slowest part.

Sure, the memory controller is on the CPU, but no AMD CPU that I have seen lists the memory speed. The CPU matches a socket on the motherboard and it is the motherboard that lists the RAM speed.

I have seen motherboards with mixed standard like AM2,AM2+,AM3 and then you may have restriction like you can use DD3 1333, but only with AM3 CPU. However, this is listed with the motherboard (and not the CPU).

At any rate all Athlon II CPUs that I can see on newegg right now use the AM3 socket. We have to see the exact model of the motherboard to say for sure.

stalkingwolf
November 18th, 2011, 02:00 PM
becareful. Ram is different i just learned this lesson. for instance if the board is designed to take pc2700 as the max you cannot put pc5300 in it.
while both may be DDR, both unbuffered non-ecc, the key slot in the 5300 is just off of where it is in the 2700.

CharlesA
November 18th, 2011, 03:02 PM
becareful. Ram is different i just learned this lesson. for instance if the board is designed to take pc2700 as the max you cannot put pc5300 in it.
while both may be DDR, both unbuffered non-ecc, the key slot in the 5300 is just off of where it is in the 2700.

That is mostly for old boards. Most new boards support DDR3, though you will find some that still run DDR2.

stalkingwolf
November 20th, 2011, 06:02 PM
True but still a fact. and as This OS and it flavors are well known for giving new life to old hardware. ....................

CharlesA
November 20th, 2011, 06:37 PM
True but still a fact. and as This OS and it flavors are well known for giving new life to old hardware. ....................
True, different memory technologies use different keying and pinouts.

168 pin DIMM (SDR) won't fit a 184 pin DIMM slot (DDR) since they are different memory types.

stalkingwolf
November 21st, 2011, 05:28 PM
i think its the microsoft syndrome. new release requires new hardware and or soft ware. that = more sales.

CharlesA
November 21st, 2011, 07:31 PM
i think its the microsoft syndrome. new release requires new hardware and or soft ware. that = more sales.
Nah, just new technology. The electronics industry in known for moving at light speed.