"The Asus P5K SE Motherboard Qualified Vendors List (QVL) says that it only runs ram at 1066MHz and MDT is not on the list"
Really? I beg to differ.
The motherboard manual states,
" The chipset officially supports the memory frequency up to DDR2 800MHz. Tuned by the Asus Super Memspeed Technology, this motherboard natively supports up to DDR2 1066MHz."
1) Notice the 'Up To'.
Supports UP TO 800MHz, and with the SMT it supports UP TO 1066MegaHertz.
It will support DDR2 at 667MHz, 800MHz, and 1066MHz (With SMT)
The QVL doesn't encompass all ram memory that is available out there.
The Ram Memory used has to be;
B) DRAM chips used cannot be any larger than 64MB
[DRAM chip. http://en.wikipedia.org/wiki/File:Generic_DDR_Memory_%28Xytram%29.jpg
The Black rectangular chips, shown on the module of DDR Sdram example above, are DRAM chips. http://en.wikipedia.org/wiki/DRAM
C) Should follow the JEDEC standard for DDR2 Sdram.
For one, it should follow the JEDEC standard for DDR2 voltage.
Some high performance ram is set to use a slightly higher voltage. The Asus motherboard is set to use DDR2 at 1.8 Volts by default. (Factory settings=Default)
The MDT DDR2 at 667MHz is not high performance ram memory. It will be set to use 1.8 Volts.
Up to the Left side of the page is the heading - Download, in white.
Under it is the - Input Model to Search, box.
Put your mouse cursor in the box, leave it there.
Type - P5K SE
Go to the Select Category box below it, and left-click on the down arrow, on the right side of the box.
In the drop down list click on - Manual
Now click on - Search info, below it.
Left-click on the blue P5K SE to the left.
Choose the Operating System. Left-click on the down arrow on the right side of the box. I chose Windows XP in the drop down list..
It doesn't matter.
Left-click on Search below.
Now scroll the next page down to Version E3202
Left-click on Global (DLM)
In the security box that pops up, make sure you use capital letters for the letters shown.
Left-click on Submit.
It's a PDF file download. Make take up to 30 seconds before you see the first page. May also take time to fully download. Advise letting it download before looking through it.
I posted the link so that if you have a motherboard manual, and it does not have the information this one has, then you now have the official Asus version.
Ram Memory information starts on Page 37.
Page 40 shows the QVL for DDR2 at 800MHz.
Page 41 shows the QVL for DDR2 at 667MHz.
This QVL does not list MDT either.
It's okay, it will work. The MDT ram memory has SPD support.
[Serial Presense Detecthttp://en.wikipedia.org/wiki/Serial_presence_detect
Maximum Total Amount of ram memory is 8GB. You better have an O/S that will recognize 8GB, however, to realize this.
Has to be a 64bit O/S. (Operating System)
Windows XP Home, and Pro that are 32bit versions, will only recognize 3.2 to 3.5GB of ram memory.
Maximum Amount for EACH ram slot is 2GB.
If you only install one ram memory module, make sure it is in Slot 1. (DIMM A1 on that motherboard. The ram memory slot that is closest to the Processor)
350 Watt PSU? Not planning on gaming I see.
Depends on what PSU you have (Power Supply Unit), but it could be old enough to be just putting out 70 percent, of the maximum rated wattage.
Continued in an additional Comment