Hi,

I'm using asus m3a78 boards (with the sb700) for opensolaris and m2a* boards 
(with the sb600) for linux some of them with 4*1GB and others with 4*2Gb ECC 
memory. Ecc faults will be detected and reported. I tested it with a small 
tungsten light. By moving the light source slowly towards the memory banks 
you'll heat them up in a controlled way and at a certain point bit flips will 
occur.
I recommend you to go for a m4a board since they support up to 16 GB. 
I don't know if you can run opensolaris without a videocard after installation 
I think you can disable the "halt on no video card" in the bios. But Simon 
Breden had some trouble with it, see his homeserver blog. But you can go for 
one of the three m4a boards with a 780g onboard. Those will give you 2 pci-e 
x16 connectors. I don't think the onboard nic is supported. I always put an 
intel (e1000) in, just to prevent any trouble. I don't have any trouble with 
the sb700 in ahci mode. Hotplugging works like a charm. Transfering a couple of 
GB's over esata takes considerable less time than via usb.
I have a pata to dual cf adapter and two industrial 16gb cf cards as mirrored 
root pool. It takes for ever to install nevada, at least 14 hours. I suspect 
the cf cards lack caches. But I don't update that regularly, still on snv104.  
And have 2 mirrors and a hot spare. The sixth port is an esata port I use to 
transfer large amounts of data. This system consumes about 73 watts idle and 82 
under load i/o load. (5 disks , a separate nic  ,8 gb ram and a be2400 all 
using just 73 watts!!!)
Please note that frequency scaling is only supported on the K10 architecture. 
But don't expect to much power saving from it. A lower voltage yields far 
greater savings than a lower frequency.
In september I'll do a post about the afore mentioned M4A boards and an lsi sas 
controller in one of the pcie x16 slots.
-- 
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