Hmm. Your DPM and PSB default to enabled and mine to disabled? Mine is running in Dual Channel.
Here's the CTIAW output with everything enabled; does it differ significantly from yours?
**** INTEL/AMD/VIA memory config info, c't/Andreas Stiller V2.7 June 03 ****
Kernel Driver: WinNT DIRECTNT.SYS V01.09
Pentium 4,(0F29-09)ca 2903 MHz (sleep) 2895 MHz (load)
Bus Speed: max=200MHz, ratio=12 => 241 MHz
Hostdevice: (2570) Springdale i865 MCH, Vendor: (8086) Intel, Rev:0002h
----------------------------------------------------------------
Intel Springdale i865 MCH Rev:02: Bus:0, Device-Nr:0, Function:0
System Frequency : FSB800/200 MHz
Memory Frequency : DDR320/160 MHz (5:4)
IOQ Depth : 12 deep
Top of usable Memory : 512.0 MByte
Extended SMRAM (Tseg) : disabled
Overflowdevice : disabled and unlocked, ID= 2576h, Rev: 2
Memory Delays Base Address : FECF0000 not prefetchable
CPU Parking : disabled
Memory : row0: 512 MByte/16 KB Pages
DRAM-Channels : Dual Channel Linear, DDR
ECC & Refresh : Non-ECC, Refresh=7.8 µs
PAT-mode : (7) partially enabled
Active to Precharge Delay : 6 clocks .. 70 µs
Tcl - Trcd -Trp : 2-3-3 T (DRAM Clocks)
Memory Read Bandwidth : ca. 5029.3 MBytes/s, Cacheline size= 128
>> go on with CR