939 MB w/ more than 4 GB Ram?

[stormslayer]

I believe this is impossible, but thought I would check. Are there any 939 mb's w/ more than 4gb ram? I've looked; it seems they all have 4 slots w/ a max rec. of 1gb ram per slot.

thanks.
sd

 

[icejunkie]

I don't think so, although theoretically the A64 can access more than 4GB of RAM, am I right?

 

[amol]

icejunkie - YES, because it is a 64-bit processor, it can access MUCH MORE memory than a 32-bit processor (think more memory than what a hard drive can hold )

stormslayer - 2GB modules don't work in current DIMM slots

besides if youre using an athlon 64, you probably don't need more than 2GB of RAM

 

[stormslayer]

SO I'm basically stuck going for a 940 board, which if I want PCIe, means waiting on the Tyan K8we or the Iwill Dk8es. Both of these boards seem to be MIA
Thanks.

Footnote: I need more than 4 GB ram. Running large data sets / computational models. Not convinced I need a dualie, but it seems 939 architecture is forcing me that way.
sd

 

[VirtualLarry]

I've been kind of wondering, why havent some of these mobo makers made some A64 "desktop super-servers" or higher-end enthusiast/professional-workstation boards, and put a memory-controller into the chipset, as well as the one integrated into the CPU, and have the chipset-controlled RAM interface with the CPU-controller RAM, much like two CPUs would access each other's RAM over the HT link in a multi-CPU system? Something like that might be happening in the future though, ALi apparently is working on A64 chipsets to support DDR2 via the chipset's memory-controller, which would potentially mean that a mobo mfg could also allow the CPU to support DDR1 memory via the built-in memory-controller, and mix/combine both.

 

[FP]

the 4gb limit is a register/os limit as it can only address 2^32 byte-addressable memory locations

theoretically a 64 bit processor could address ~16 million terabytes of memory. more memory than has ever been produced to date!

people thought 4 gigs would be enough and look how wrong they are turning out to be!