Hello Peter,
Do you have the latest BIOS update?
--
Jane, not plain

64 bit enabled :-)
Batteries not included. Braincell on vacation ;-)
"Peter Haumer" <Peter_Haumer@newsgroup.nospam> wrote in message
news:uhJS0Yk2HHA.1208@TK2MSFTNGP05.phx.gbl...
> Hi.
> I have a Dell XPS 710 that ran WinXP (32bit) so far with 4GB installed
> with no problems four 5 months. Have GForce 8, XFi SB, one SATA and one
> PATA drive.
>
> Got myself a second SATA hard disk drive to install Vista x64 that I want
> to use via dual boot. When booting from DVD I immediately got a "STOP:
> 0x0000007E" (plus four parameters, no additional lines below) blue screen.
> I removed 2GB and the install worked fine. Installed all Windows Updates
> and latest 64bit drivers that I could find for my configuration. Rebooted
> several times without any problems during that process. Then I placed the
> other 2GB memory back into my machine and the same blue screen came back
> when now booting my Vista 64 drive. The XP drive still works fine. Got
> myself a whole new set of 4 1GB dimms: same blue screen; each and every
> time I try to boot. When I remove 2GB it works fine. I also tested two
> 2GB in the different dimm slots (i.e. 1 and 3 populated and 2 and 4
> populated): worked great. Just not with 4GB. Dell said they do not
> support Vista 64 (after being 3 x 90 min with them on the phone about this
> already :-).
>
> Any help or hints on how to get Vista 64 to work with 4GB in my system
> would be very much appreciated. Thanks in advance.
>
> Best regards,
> Peter Haumer.
>
> P.S.: I am an MSDN subscriber and just registered this alias for MSDN
> benefits Managed News Groups support. I hope it worked.
>
>
>