A7N8X Deluxe memory settings please help

[Richard]

Hi all,
please excuse any formatting errors with this message because this is the
first time I have attempted to post to a news group.

I have a brand new mobo running an AMD XP 3000+ @333mhz

My problem is that I have installed a Micron Preferred 512 meg memory stick
into bank 1 and it is only reading half of the chip. It only shows as having
256 megs installed. I have memory settings in the BIOS to run @ sync or
100% of FSB or 166. The CPU's multiplier is set to AMD's recommended 166 X
13.0

This is double sided DDR PC 2700 memory. Am I missing a setting here? Please
help!

Happy holidays
Rick

 

[Ed]

Hi all,
please excuse any formatting errors with this message because this is the
first time I have attempted to post to a news group.

I have a brand new mobo running an AMD XP 3000+ @333mhz

My problem is that I have installed a Micron Preferred 512 meg memory stick
into bank 1 and it is only reading half of the chip. It only shows as having
256 megs installed. I have memory settings in the BIOS to run @ sync or
100% of FSB or 166. The CPU's multiplier is set to AMD's recommended 166 X
13.0

This is double sided DDR PC 2700 memory. Am I missing a setting here? Please
help!

Happy holidays
Rick

Ram size is auto detected by the BIOS on boot, you can only select the
speed and timings the ram runs at and that shouldn't effect the amount
of ram detected. (PC2700 runs at 166MHz so 100% is fine for your setup).

It's possible the stick is bad or incompatible with that board, have you
tried re-seating it (plugged in all the way?), try the stick in slot 2
or 3?

Ed

 

[Jim]

Do you have a part # for the ram ? The only thing I saw in the manual was
that modules with more than 18 chips on them are not supported. They have
more info on the website. Shouldnt have to do anything in the bios to get
it to recognise all the ram.

 

[Peter R. Fletcher]

From experience, if you try to use a DIMM with more than _16_ chips
(the 18 seems to be a typo in the manual), the board won't boot and
POST reports a memory error - you don't get as far as counting it.

 

[Ed]

From experience, if you try to use a DIMM with more than _16_ chips
(the 18 seems to be a typo in the manual), the board won't boot and
POST reports a memory error - you don't get as far as counting it.

Must be the "more than 16", my (paper) manual basically says 8 devices
per side max.

Ed

 

[Jim]

Its says non ecc which would be 16 chips but lower down says dimms with
more than 18 are nor supported. The board may work with 18 but no ECC or
it could be another of many typos. I dont have any ecc to try out.

 

[Rob]

Its says non ecc which would be 16 chips but lower down says dimms
with more than 18 are nor supported. The board may work with 18
but no ECC or it could be another of many typos. I dont have any ecc
to try out.

As far as I know, the Standard on this is:
8 Chips=64 bit path=Non ECC
9 Chips=72 bit path=ECC
I've found that the manuals says only Non ECC with max 8 chips per
side(16 total), and then they say no more than 18 total and show
pictures of 9 per side. Since I haven't seen any manufacturer
recommending 72 bit memory for the A7N8X, I put my money on the 8 chip
per side DDR!

Rob