Does the memory have a brand and model number ? Perhaps
the sticks are registered ?
I see an example here, of pretty ordinary looking 4GB sticks. These
are using 256Mx8 chips. I don't know if they're stacked die, or
real 2gigabit technology. These run at DDR2-800 at a relatively high
CAS, and cost $756 for a pair. Only $1500 to fill your computer.
One of the nicer aspects of this product, is the inclusion of ECC.
At 16GB total, ECC protection is a good idea, and your AMD processor
should support it (ECC is part of the memory interface).
http://www.ec.kingston.com/ecom/configurator_new/PartsInfo.asp?ktcpar...
There are a couple products listed on Newegg, at that capacity level,
but they don't have ECC. They're also cheaper, and are out of stock.
4x4GB DDR2-800 CAS6 $450http://
www.newegg.com/Product/ProductReview.aspx?Item=N82E16820231183
DDR2 is normally around $25 a gigabyte, so that is a reasonable price,
especially considering the density provided.
The QVL for your board, shows it has not been tested with 4GB sticks.
And with four sticks, you're most likely to top out at DDR2-800 under
the best of circumstances.
http://www.gigabyte.com.tw/FileList/MemorySupport/motherboard_memory_...
Normally, when people seek that kind of memory quantity, they want it
bad enough to accept any slight loss in performance.
The biggest memory quantity I know of in a motherboard now, is a
server board that can hold 256GB of FBDIMMs. In case you seek to
set a record.
Paul