I have 3 sticks of RAM - no overclocking for me?

[Monarch]

From MSI FAQ:

Q: I have 3 sticks of ram, or 2 sticks of doublesided ram, thats supposed to be pc3200(400mhz) yet the system shows it as pc2700(333mhz) or lower, howcome?

A: The memmory controller of AMD64 does not officially support 400mhz speed on two doublesided sticks of ram, or on 3 sticks of ram (regardless of single/double side), however this board seems to be very tolerant concerning this, change your ram setting from auto to 200, and see if it helps. if not, try with other rams, theres no gurantte it will be able to function at 400mhz
please note that this is a limitiation in the AMD 64 CPU's memory-controller, and not a limit in the motherboard !



Does it mean that because I have 3 sticks of Corsair RAM - I won't go far beyond 200Mhz FSB?

How crappy...

[saaya]

well did you try what the msi support told you?
did it work or not?


if not then contact ramguy from corsair :)
they usually change memory if it doesnt run correctly on your upgraded system :)

[Monarch]

well did you try what the msi support told you?
did it work or not?


if not then contact ramguy from corsair :)
they usually change memory if it doesnt run correctly on your upgraded system :)

The RAM itself is great and runs 220Mhz at 2-2-3-11 at 2.7v. I am sure can go higher at loosened timings, but 220Mhz is really max for A7N8X-Deluxe.

MSI Support said that A64 can't handle much RAM...

[Monarch]

Question...3 sticks of RAM run dual channel on nForce 2 boards, but NOT nForce 3?

[craig588]

AMD kinda went cheap with their memory controller to cut costs. Mobo makers don't cut costs because the market is much more competitive than the CPU market. The internal memory controller helps the speed by the incredibly low latencies more than it hurts it from the low clock speed support.

On NF3 boards the CPU controls the memory, on NF2 boards the chipset controls the memory.

[Monarch]

Some report that the EPOX nForce 3 allows dual channel with 3 RAM sticks...

[jjcom]

just try it...I wouldn't be surprised if it worked fine...maybe no extreme overclocking...but it might work

jjcom

[IvanAndreevich]

Are they double-sided? If you can get 3x512MB single-sided sticks then there is no problem to run it I think. With a bit of luck, that is :)

[saaya]

dual channel doesnt work with 3 sticks on nf3 nf4 875 915/925,

on nf2 it doesnt really work in dual channel, its some kind of pseudo dual chnnel afaik, hard to explain... its not real dual channel anyways.... at least afaik

so again, if your memory doesnt run on the nf3 then ask corsair to replace it :)

[Monarch]

dual channel doesnt work with 3 sticks on nf3 nf4 875 915/925,

on nf2 it doesnt really work in dual channel, its some kind of pseudo dual chnnel afaik, hard to explain... its not real dual channel anyways.... at least afaik

so again, if your memory doesnt run on the nf3 then ask corsair to replace it :)

I did, they said no....

[reject]

it should be able to run at the rated speed, but might need more volts for the cpu