I was all over getting a 939 board and 165 Opteron until... I saw the Opteron 265 (940 socket) @ the same price roughly.
The mb was $100 more than I was going spend initially. Doh! EEC ram needed. Doh! ECC ram isn't that expensive.
In a month I'll buy the ASUS mb, the 265 chip, 1 gig of ecc, and a cheap @$$ x300 pci express card barebone set up and replace the guts of my current AMD MP system. Maybe in 6 months I'll drop the second 265 Opteron on the board and maybe grab a better graphic card Nvidia 6800 Xtreme.
I figure being able to add a second dual core cpu and having 16Gb of ram to scale to might get me through Vista and future memory/cpu hungry apps that will natually come down the pike.
-- and I've seen the sisoft benches for what I'm about to upgrade to. 8O
My question... other than the $1200 upgrade cost I've budgeted when all stages are said and done, is there a forseeable downside to this upgrade path? I'm thinking I can get 3+ years out of it happily.
The
nVidia 6800 XT is a poor performance card, you'll want a GeForce 6800 GT or GS instead surely ... if gaming ... unless you meant 'GeForce 6800 GT Extreme', which is OK.
The downside is that most applications are not threaded, and will only perform with 1.8 GHz of processing power on a Opteron 165 / 265 system. If your system is an actual MP system, running software designed for MP ( or multi-core now:
http://multicore.amd.com ) then yes, you will see many benefits. Games will not be threaded for a very long time, and benefits from threading while the OS does timeslicing the way OS's always have will limit its use in many games.
The Tyan K8WE S2985 is the board I am currently using:
http://www.users.on.net/~darkpeace/hardware/Opteron270.html
- My original design notes are towards the bottom, but after AMD64 Revision CG PC3200 on Opterons with large memory counts was a common reality, so ignore those parts.
- It has the nForce 2200, 2050, and an AMD-8000 chipset, also multiple tunnels for PCI-X (133 - 66 MHz, 64 bit) cards, and supports SLi (2 x PCIe x16)
Don't just look at
Registered ECC, (vs just ECC, it is key'd differently), look at
Registered ECC / ChipKill(tm) DDR-SDRAM (128x4 vs 64x8) Search for articles on Registered memory & ChipKill ECC then
read them .... ECC is very old news on the server front but most gamers get the gist of it.
If you want peak performance from an Opteron 200 series then you need 4 x DIMMs of memory and 2 x NUMA nodes (and 2 processors of course), so are you looking to get 4 x 256 MB PC3200 Registered ECC memory ?, or does 'that board' only connect the memory to the 1st CPU's memory controller (a fairly dumb idea when you've got 2 processors each with their own dual-channel memory controllers intregrated and could aggreate the memory performance, however... it does make the board cheaper and easier to market).
Asus + Hybrid Prosumer / Server board = bad idea.... Unless you are looking at their actual server boards and not Prosumer Dual Socket 940 ones. (Asus have two seperate lines, Private Msg me the model number and I can check it isn't one of their dodgier '
not really server but marketed that way anyway' boards.
Note: The SANDRA benchmarks can run up to 32 isolated threads, and usually fit within the cache of the processor.....
are the applications you're planning to run on the machine similar to this ? - Games most certainly are not btw (Get a very high performance single-core processor for gaming... maybe a dual-core, anything more and the cores will sit idle 99.9% of the time).
If your are just running games the Opteron 265 is a very bad choice.
Are these the scores to which you refer ?
Full quality PNG at:
http://users.on.net/~darkpeace/forum_images/hit-a-brick-wall.png
(Turn image automatic resize of if using MS Internet Explorer, or the image may look bad... or just get Firefox with image zoom in/out feature).