Thanks Charlie.
I will check the DFI site but I don't think its a MB issue. The MB will take
3GB of memory quite happily and various memory testing program will run, test
all 3GB and report no error. Windows XP will load and report 3GB, and will
run Prime95 in torture test mode with no issue.
A small point but it might be worth posting at the top of the thread next
time so that responses are in reverse chronological order and can be easily
read.
Chris
"Charlie Tame" wrote:
Quote:
> Chris Swinney wrote: Quote:
> > Richard,
> >
> > Many thanks for this and don't worry, I know about the issues of matching
> > RAM. The three new modules are all identical from the same manufacturer. The
> > are all the same size speed and density, that is 1GB DDR 400, 64MBx16 running
> > at CL3. the manufacturer is Hynix.
> >
> > The original RAM was two sticks of Crucial memory, this time 512MB DDR 400,
> > CL3 memory.
> >
> > There are a totla of 3 slot on the MB, and it is capable of supporting 3GB
> > max.
> >
> > The strange thing is that I can put module in differnt order and combination
> > and all will work fine (as long as I stay below the 2GB limit). I can mix and
> > match the two manufacture with no issue - i.e. I can run 2x512MB and 1x 1GB
> > so using all slots and all is OK. As soon as I try and run 3x1GB or 2x1GB +
> > 1x512MB then vista will not load - but XP will with no issues.
> >
> > Chris
> >
> > "Richard Urban" wrote:
> > Quote:
> >> I have seen this when the RAM sticks are not identical (same manufacturer,
> >> same date, same batch code and especially - with the same timings).
> >>
> >> If you have two sticks in there now that use a fast RAM timing, and the bios
> >> is set to this timing, and you then put in a stick with slower timings - the
> >> computer may give you all sorts of errors. Yet, each stick of RAM is good.
> >>
> >> This is why it is good to always buy RAM for a manufactured computer direct
> >> from the computer manufacturer. Get RAM for your HP from HP etc.
> >>
> >> If you build your own computers, buy all of your RAM at the same time, from
> >> the same supplier. This way you have a better chance of getting RAM that is
> >> from the same manufacturing batch. If you buy two sticks of RAM today and go
> >> back to the same supplier next week to get another "identical" stick - you
> >> "may" be out of luck. The new stick "may" just be different enough to cause
> >> errors.
> >>
> >> Laugh if you must but my parts cabinet is loaded with hundreds of sticks of
> >> used RAM from computers that had a RAM mismatch.
> >>
> >> --
> >>
> >> Regards,
> >>
> >> Richard Urban
> >> Microsoft MVP Windows Shell/User
> >> (For email, remove the obvious from my address)
> >>
> >>
> >>
> >> "Chris Swinney" <ChrisSwinney@xxxxxx> wrote in message
> >> news:84744106-6938-4C31-A751-15D619A97936@xxxxxx
> >>> Hi all,
> >>>
> >>> I have an issue with an upgraded system using a DFI NF Ultra 11
> >>> motherboard
> >>> and 3GB of RAM. Vista simply will not boot, either from the default
> >>> installation or from the CD. If I allow Vista to boot normally (or via the
> >>> CD) it will only get to the initial black screen with the time line bar at
> >>> the bottom, yet the bar will never show and the machine will just hang. If
> >>> I
> >>> boot the default installation in safe mode I get different BSOD stop
> >>> messages
> >>> such as 0x1000000a.
> >>>
> >>> My first instinct was that the memory was faulty, however, I ran Windows
> >>> memory diagnostic and Memtest86+ with no issue. I then booted into Windows
> >>> XP
> >>> (on another partition) which registered the 3GB of memory and ran Prime95
> >>> also with no issue.
> >>>
> >>> Anyone have any further thoughts or ideas of how I might further test the
> >>> memory full in XP.
> >>>
> >>> Thanks
> >>>
> >>> Chris
> >>>
> >>
>
>
> Some older ASUS motherboards had a hardware problem similar to this and
> there's never been to my knowledge been anything on the official site. I
> found the info using Google and it was in some newsgroups / forums but
> it seems like the posters were not connected so it was not common
> knowledge. 1.5 GB okay, 2GB (Stated by Asus as the Max) reported about 5
> bytes 
Bios update no good either.
>