Bob wrote:
Roger Heflin wrote:
Bob wrote:
Roger Heflin wrote:
Bob wrote:
Bill Williamson wrote:
Bob <[EMAIL PROTECTED] wrote:
Bob wrote:
> Unbuffered / Registered obviously.
>
Bad form Bla Bla Bla but just to update the list, the abit A-S78H also
supports Un-buffered ECC RAM, it doesn't have FireWire though
http://www.abit.com.tw/page/en/motherboard/motherboard_detail.php?pMODEL_NAME=A-S78H&fMTYPE=Socket%20AM2
<http://www.abit.com.tw/page/en/motherboard/motherboard_detail.php?pMODEL_NAME=A-S78H&fMTYPE=Socket%20AM2>
Why do you think that ECC vs non ECC ram will have any bearing on
stability of a media computer ? If you're going ECC, why would you
not also go SCSI?
I don't disagree with wanting stability, but the reality is that ECC
likely will not give you any.
ECC RAM corrects bit errors in memory which could cause a crash or other
problems, these errors while rare are estimated to occur once a month
per GB of RAM, I'm planing have 2 or 4 GBs and I'll leave the system up
all the time, which is why reliability and low power consumption are a must.
Actually the errors don't happen that often anymore, not sure exactly why, but I
have monitored huge amounts of ram (10000+ GB for months) and the errors happen
pretty rarely except on machines getting huge numbers of errors, in a given
month with a machine with 32GB on it very few of the machines get any errors at
all, the few that get errors don't usually get only 1 error.
That's interesting to have some real world figures, thank you.
But, if you are monitoring ECC then this will give you a chance to know about
the memory *BEFORE* it causes you machine to be unstable and crash randomly
without you knowing why it is crashing. It would also speed up correcting the
issue as you don't have to guess what the actual issue is.
What do you use to monitor the errors?
On AMD boards a program called mcelog (you will have to put it in cron) will
work-most soft MCE errors are ECC errors either in the CPU or in memory, also
something in the kernel (may require an extra module in some distribtions)
called edac will also work. The edac thing will also work on *SELECT* intel
boards, mostly on the intel side only the higher end (dual socket server boards)
are supported, on AMD because the ECC is in the CPU itself it is pretty much
supported everywhere if the MB will take ECC ram.
But those are quite rare on consumer side of things, when I get these
boards setup I'll look into mcelog vs edac, it looks like edac is in
lenny but not etch.
http://packages.debian.org/edac-utils
It is really one of the advantages of the AMD cpus, as you can easily get ECC in
them without buying a single socket server grade MB for a lot more money that
you have to get with the Intel cpus.
This is exactly the reason I'm after an AM2+ MotherBoard that supports
it, I like these 2 boards [4] but I've had bad experiences with both
abit [0] and asus [1] in the past in both cases not actually their fault
but once bitten.. the only downside is the lack of FireWire which as Ron
on debian-users points out that can be fixed with a PCI card, the only
problem with that is these mATX are quite short on space and I'll
probably put a DVB-C card in.
In the order of the vendors, Supermicro's quality is on average better than any
of the other MB only vendors.
Intel only though.
I forgot that since I have used a number of Supermicro AMD server boards, Intel
only unless you are a VAR. They do have AMD boards for VAR's, just not for
consumers, and the lowest board is a low-end server board.
See: http://www.supermicro.com/aplus/
The closest they have use an Opteron 1000 and costs $260, it does have 6 sata
ports, 2 gbit lans, and some higher end pcie ports (x16,x8,x4), but no DVI or
HDMI even on the more expensive MB with video on it.
I hear you, one thing that saddened me was ULi being swallowed by
nVidia, they were coming out with some pretty innovative stuff, Oh well,
it can join 3dfx, S3 graphics and lodes of others on the wasted
potential and shattered dreams pile.
I'd actually like to get a system with one of the Loongson / Godson 3
chips when they come out, assuming they're available in a more capable
all round package than the Godson2 stuff was.
Not sure I would touch a via again, I just figured out that my machine (with a
via chipset) became unstable when I started using both of the via sata ports, it
had been previously stable without them, using the via ports made the raid about
2x faster but prone to crashing the machine, and causing a number of other bad
behaviors.
Roger
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