Re: Topcat's Acer Dual Slot 1 Server? - The Acer Altos 1100
The problem I had with the DDR2 is that they were bad. See the number of posts I did on soldering crap to the modules to get them to work. During the debug time it was very frustrating as sometimes the machine gets stuck while testing with the existing modules to see which were bad.
I did notice there was one more problem with the 2GB module - there's a few bad bytes according to memtest86+. Perhaps increasing voltages would help, but I ended up just telling Linux to just not use that bad page. Lost a whole 4K RAM - one in a 2 million pages - of course out of 8GB this is like nothing, but I found a few applications that would hit this bad page and then puke.
I have another like board (and CPU) that has no problem with 4x2GB DDR2 modules with default configuration. There is two pairs of different branded modules if I recall correctly. The other 4x2GB DDR2 modules in the previous machine were of the same brand and model. Go figure.
(And yet another board I have 2 matched 1GB and two mismatched 2GB modules. This also works just fine at default voltages, and still works in dual channel...)
The problem I had with the DDR2 is that they were bad. See the number of posts I did on soldering crap to the modules to get them to work. During the debug time it was very frustrating as sometimes the machine gets stuck while testing with the existing modules to see which were bad.
I did notice there was one more problem with the 2GB module - there's a few bad bytes according to memtest86+. Perhaps increasing voltages would help, but I ended up just telling Linux to just not use that bad page. Lost a whole 4K RAM - one in a 2 million pages - of course out of 8GB this is like nothing, but I found a few applications that would hit this bad page and then puke.
I have another like board (and CPU) that has no problem with 4x2GB DDR2 modules with default configuration. There is two pairs of different branded modules if I recall correctly. The other 4x2GB DDR2 modules in the previous machine were of the same brand and model. Go figure.
(And yet another board I have 2 matched 1GB and two mismatched 2GB modules. This also works just fine at default voltages, and still works in dual channel...)
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