more help on 2460 Dimms needed

i have a Tyan s2460

right now i have in there two 256mb MA Labs ECC REgisterd
DDR ram.

The unit is running nice, stable, etc.
I have the 2 dimms in slot 1 and slot 2 from the left to the right in the
2460.

ok, so i get this new MA LABS 512mb ECC Dimm --- i tried to put it in with
the other Dimms but got blue screens, errors., etc. I put it in the far
left dimm slot. A poster here named "DEFAULT" was very helpful to inform
me to put the higher capacity dimms in the first bank slot. So i put the
512mb Dimm in the far left slot.

first i had it in alone and it seemed to boot up fine and work fine. then i
put in one of the 256mb dimms in the 2nd slot and I got a BLUE SCREEN - i
think it was a parity-type error. Had more errors after that.

So now i tried the 512mb Dimm by itself in the far left slot -- and yes i
did get some errors and things - it was very unstable. I did manage to get
to Windows but got some errors, etc. It clearly wasnt flowing with the
system.

Now i am back to the two 256Dimms and it is working fine again.

I know it seems that the 512mb Dimm is bad, but is it? the guy said he
tested it and all - all was fine. What am I missing - is there something i
need to do to run one 512mb Dimm along with two 256mb Dimms?

THANKS FOR ANY HELP HERE,
JDH

"Jdh" <jhasknospam RemoveThis @access4less.net> wrote in message
news:vr5vikq1uvsj56@corp.supernews.com...
 > i have a Tyan s2460
 >
 > right now i have in there two 256mb MA Labs ECC REgisterd
 > DDR ram.
 >
 > The unit is running nice, stable, etc.
 > I have the 2 dimms in slot 1 and slot 2 from the left to the right in the
 > 2460.
 >
 > ok, so i get this new MA LABS 512mb ECC Dimm --- i tried to put it in with
 > the other Dimms but got blue screens, errors., etc. I put it in the far
 > left dimm slot. A poster here named "DEFAULT" was very helpful to inform
 > me to put the higher capacity dimms in the first bank slot. So i put the
 > 512mb Dimm in the far left slot.
 >
 > first i had it in alone and it seemed to boot up fine and work fine. then
i
 > put in one of the 256mb dimms in the 2nd slot and I got a BLUE SCREEN - i
 > think it was a parity-type error. Had more errors after that.
 >
 > So now i tried the 512mb Dimm by itself in the far left slot -- and yes i
 > did get some errors and things - it was very unstable. I did manage to
get
 > to Windows but got some errors, etc. It clearly wasnt flowing with the
 > system.
 >
 > Now i am back to the two 256Dimms and it is working fine again.
 >
 > I know it seems that the 512mb Dimm is bad, but is it? the guy said he
 > tested it and all - all was fine. What am I missing - is there something
i
 > need to do to run one 512mb Dimm along with two 256mb Dimms?
 >
 > THANKS FOR ANY HELP HERE,
 > JDH
 >
 >

Hi there,

According to the S2460 manual, there is NO combination listed that allows
the use of 2 x 256Mb and one 512Mb modules (If I have your config
correct...)

It will allow a 256 dimm in the DIMM1 slot and a 256 dimm in the DIMM3 slot
for 512Mb of RAM.

The only other combination listed with a 512Mb module is:

DIMM1 512Mb
DIMM2 512Mb
DIMM4 1024Mb

for a total of 2Gb..

My suggestion would be to take the module back, or buy some more RAM...

Regards

Simon<!-- ~MESSAGE_AFTER~ -->