[LinuxBIOS] Ram limit at 128mb Bios, or hardware?
bari at onelabs.com
Thu Nov 17 16:27:42 CET 2005
The old GX1 and GXLV's were sensitive to SDRAM SDCLK speeds vs the
number of loads (devices). Validated memory timings were pretty
conservative. Depending on how your 256MB SDRAM SODIMM is configured, it
may need to have the SDCLK slowed to make the half that may be
accessible by the memory controller to work reliably.
Adam Talbot wrote:
> Well... I have a 256mb (sdram sodimm pc100) sitting around, but it is of
> VERY low quality. I will stick it on and hope for the best. If I
> remember from the last few times I have run across this issue, the board
> will still boot and run just fine, but it will only be able to access
> 128mb of the 256mb stick. I think. I will let you guy's know how it
> turns out.
> End the end I am looking only for one thing, boot time. How fast can I
> get from power on to playing music in my embedded automotive application
> (Car computer). The less memory I have, the less I need to suspend to
> disk. I will give it a nice big swap space to play with.
> Richard Smith wrote:
>>> o 16-byte reads (burst length of two)
>>> o Up to 256 MB total memory supported
>>Someone would have to study the datasheet to answer this but if it
>>somehow supports 256Mbit chips it might be possible to get a 256 Meg
>>stick in there. Highly unlikely though.
>>Richard A. Smith
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