keith
01-05-2005, 06:40 PM
On Wed, 05 Jan 2005 04:46:03 +0000, Bill Davidsen wrote:
keith wrote: On Wed, 05 Jan 2005 03:52:37 +0000, Bill Davidsen wrote:Yousuf Khan wrote:>George Macdonald wrote:>>>>On Sun, 26 Dec 2004 03:19:02 GMT, Johannes H Andersen>><johs@sizefitter.com>>>wrote:>>>>>>>I run a Northwood 2.8 P4 overclocked to 3GHz with a Tagan 380W PSU.>>>CPU cooler>>>is a Zalman duct HS fan, speed is 2000 rpm. Prime95 no problems>>>whatsoever.>>>>>>>>Huh? You overclock? I thought your work was "valuable"? Don't tell me>>this is a new approach to Stochastic Programming!:-)>>>Let me guess, he was one of those "my work is too important and valuable>to trust to AMD processors" types? %^)A fair bit of my work is too I&V to run on non-ECC memory. Server boardsand memory add about $200 to system price, typically. However, memory isfar better than it was a few years ago, and running a good memory testat boot is enough for non-critical use in many cases. That begs the questio "how much memory". Santa brough a couple of sticks of crucial 512MB registered/ECC PC3200 memory for my K8WS at about $120 per. That's not *that* much of a premium over their unbuffered/non-parity. In fact I've found over the past five years or so (my 5yo Tyan 1598 has all ECC memory in it), that generally ECC memory has the expected 11% premium over non-parity (sometimes less). $200 may be a little high. I fail to see an option to enable ECC on many budget boards,
Define "Budget Board"? $40? $100? My 1598C2 was about $100 fiveish
years ago, which wasn't all *that* ex;ensive at the time (there was small
a premium for the 2MB L2). I don't really know if ECC ever did anything,
because there is no ready way of testing it. OTOH, my 2875S does
(according to the pubs) trap ECC "events" in BIOS. ...Perhaps I'll look
some day. ;-)
so there's some cost there as well. The last SuperMicro board I had gave me the choice of nothing, parity, ECC and 2-way, 2+4way or no interleave. Don't know if my current common board lack the option or the capability.
I ran all ECC memory for a while, but building to a price point I don't see the option.
Like I said above, I haven't seen more than the expected surcharge (and
most often much less) for ECC memory in a long time. Sure, crappy boards
may not have support for it, but the difference between crap and decent
isn't all that much. This is one of the reasons I own nothing but
KeithKits anymore. I can throw a few pennies at the parts that matter and
have a far better system than the crap sold at WallyWorld.
--
Keith
keith wrote: On Wed, 05 Jan 2005 03:52:37 +0000, Bill Davidsen wrote:Yousuf Khan wrote:>George Macdonald wrote:>>>>On Sun, 26 Dec 2004 03:19:02 GMT, Johannes H Andersen>><johs@sizefitter.com>>>wrote:>>>>>>>I run a Northwood 2.8 P4 overclocked to 3GHz with a Tagan 380W PSU.>>>CPU cooler>>>is a Zalman duct HS fan, speed is 2000 rpm. Prime95 no problems>>>whatsoever.>>>>>>>>Huh? You overclock? I thought your work was "valuable"? Don't tell me>>this is a new approach to Stochastic Programming!:-)>>>Let me guess, he was one of those "my work is too important and valuable>to trust to AMD processors" types? %^)A fair bit of my work is too I&V to run on non-ECC memory. Server boardsand memory add about $200 to system price, typically. However, memory isfar better than it was a few years ago, and running a good memory testat boot is enough for non-critical use in many cases. That begs the questio "how much memory". Santa brough a couple of sticks of crucial 512MB registered/ECC PC3200 memory for my K8WS at about $120 per. That's not *that* much of a premium over their unbuffered/non-parity. In fact I've found over the past five years or so (my 5yo Tyan 1598 has all ECC memory in it), that generally ECC memory has the expected 11% premium over non-parity (sometimes less). $200 may be a little high. I fail to see an option to enable ECC on many budget boards,
Define "Budget Board"? $40? $100? My 1598C2 was about $100 fiveish
years ago, which wasn't all *that* ex;ensive at the time (there was small
a premium for the 2MB L2). I don't really know if ECC ever did anything,
because there is no ready way of testing it. OTOH, my 2875S does
(according to the pubs) trap ECC "events" in BIOS. ...Perhaps I'll look
some day. ;-)
so there's some cost there as well. The last SuperMicro board I had gave me the choice of nothing, parity, ECC and 2-way, 2+4way or no interleave. Don't know if my current common board lack the option or the capability.
I ran all ECC memory for a while, but building to a price point I don't see the option.
Like I said above, I haven't seen more than the expected surcharge (and
most often much less) for ECC memory in a long time. Sure, crappy boards
may not have support for it, but the difference between crap and decent
isn't all that much. This is one of the reasons I own nothing but
KeithKits anymore. I can throw a few pennies at the parts that matter and
have a far better system than the crap sold at WallyWorld.
--
Keith