So, habe mir ebenfalls das ConroeXFire zugelegt. Grund war der unschlagbare Preis für die Leistung, die geboten wurde. Leider habe auch ich ein Problem mit dem Board.
Der Arbeitsspeicher wird nicht richtig erkannt. Im BIOS kann ich nur zwischen DDR2-400 und DDR2-533 wählen. ich habe bereits 4 verschiedene RAM Riegel ausprobiert: 2 x 1GB MDT DDR2-667 und 2 x 1 GB TEAM DDR2-800 aber alle werden nur als DDR2-533 erkannt. (...) Ich habe so die Befürchtung, dass das etwas mit meiner CPU zu tun hat. ich habe ein Pentium D 805 der mit 133 MHz FSB und einem Multi von 20 läuft. Hat irgendjemand noch solche Erfahrungen gemacht.
Any Ideas?
Sorry if English speaking...
This has certainly to do with the limited selection of dividers of this motherboard.
It has limited FSB:RAM ratio (dividers) selection, which, moreover, are not selectable in the BIOS or wherever. They are set automatically by the board when you choose the RAM frequency: this motherboard offers only two or three options of RAM frequency, depending on the CPU native frequency.
It seems to be 1:2 for DDR2-533 or 2:3 for DDR2-400 with FSB133 CPU (as Pentium D 805)**
Perhaps a chipset limitation.
No luck for you.
BTW, I've never seen in any BIOS the 2:5 or 1:3 ratios you would need to run either DDR2-667 and DDR2-800 with FSB133...
This ratio question is also the reason why it has different FSB wall depending on the CPU's native FSB.
Ciao!
Alex.
Edit: If you can only run DDR2-667 at 533 Mhz maximum, you may at least try to use tighter timings such as 4-4-4-12 or even 3-3-3-10 with you lower-clocked faster RAM and re-gain some performance you lose by running it at lower frequency. See this:
http://www.xbitlabs.com/articles/memory/display/core2duo-memory-guide.html
Edit2: You can take this basis: since "quad-pumped" Intel processors and DDR2 which is also running at quad rate (QDR), the max RAM speed you can have is the speed rated by Intel for the processor (ex: for a Pentium D 805 rated at FSB533 -> DDR2-533 or above, for a Core 2 Duo E6300 rated at FSB1066 -> DDR2-1066 or above). 4 is the max FSB multiplier for RAM.