I've been having problems lately syncing my Casio E200 PPC with my PC since I replaced the motherboard from a generic Compaq Deskpro 350 (440BX chipset) to a ECS P6VXA (VIAŽ VT82C694X (NB) & VT82C686A/B (SB)), both running WindowsXP.

On the 440BX mobo, I had no problem syncing the Casio E200 attached to its PC-Card adaptor JK-864PU. As the Compaq was a P-II, I replaced it with a Celeron 900MHz based ECS mobo. Since then I began to experience problem: I can sync the E200 directly with the PC without the adaptor - ActiveSync 3.5 worked brilliantly. When I put on the PC-card adaptor, ActiveSync can't "see" the E200 anymore (intermittently gave a "Unknown USB Device" or sometimes it may recognise "Casio USB Sync 2002" then nothing happened). I repeated the configurations on a couple of machines, I get varying results:

A. Compaq Armada 1750 (running WinXP) - can sync with E200 directly, but cannot sync when JK-864PU used.

B. Compaq Armada 1700 (running Win2k) - can sync with E200 directly, but cannot sync when JK-864PU used.

C. Compaq Deskpro Pentium II 350MHz (running WinXP) - can sync with E200 directly AND also no problem sync with JK-864PU.

D. Dell Dimension 4500 Pentium 4 1.6GHz running Win2k - can sync with E200 directly AND also no problem sync with JK-864PU.

E. Creative PC Pentium III - can sync with E200 directly AND also no problem sync with JK-864PU running Win98 and Win2k.

I tried the latest VIA 4-in-1, USB Filter, PCI latency patch, removing USB drivers in SAFE mode, BIOS setting, etc. that were recommended in this website - nothing seems to work.

IRQ 0 System timer OK
IRQ 1 Standard 101/102-Key or Microsoft Natural PS/2 Keyboard OK
IRQ 3 Communications Port (COM2) OK
IRQ 4 Communications Port (COM1) OK
IRQ 5 VIA AC'97 Audio Controller (WDM) OK
IRQ 5 3Com EtherLink 10/100 PCI TX NIC (3C905B-TX) OK
IRQ 6 Standard floppy disk controller OK
IRQ 8 System CMOS/real time clock OK
IRQ 9 Microsoft ACPI-Compliant System OK
IRQ 10 VIA Rev 5 or later USB Universal Host Controller OK
IRQ 10 VIA Rev 5 or later USB Universal Host Controller OK
IRQ 10 OPTi 82C861 PCI to USB Open Host Controller OK
IRQ 12 PS/2 Compatible Mouse OK
IRQ 13 Numeric data processor OK
IRQ 14 Primary IDE Channel OK
IRQ 15 Secondary IDE Channel OK

Any advice (other than go get a DELL)? Million thanks!

Regards,
LKH