Originally posted by: JSSheridan
Originally posted by: iambenfal
Great thanks guys!
So the KINGSTON KVR 400MHZ DDR ECC_____512MB__CL3A 16420______$185.00 is the better one I guess...
Whoa dude, slow down. ECC may sound good, but it may not be the best for you. ECC is made for servers, non-ECC is accurate enough for everyone else while being faster. I don't think ECC will fit in a memory slot designed for non-ECC. So before you hit the check-out button, why don't you tell us what you're using your system for and list the parts in your system. Peace.
There is a fairly standard pinout spec for DDR SDRAM with ECC. So unless it is a particular brand- or model-specific DIMM, intended only for a certain server machine, he should be fine with ECC. The physical size/pinout is same/compatible with standard non-ECC DDR SDRAM DIMMs (184-pin). If the motherboard/chipset doesn't support ECC, then it will just go unused. The price difference is tiny. (But yes, if his chipset doesn't support it, the ECC features will go unused. ECC can also add a tiny bit of latency to memory, but most memory accesses these days are bursted cache-line reads or writes, so the performance "penalty" of using ECC is not even noticable.)
Frankly, with the amount of DRAM in modern systems, I'm really, really surprised that Intel hasn't mandated ECC support back in yet. I always used to run systems with ECC, never without, until I ended up with this AMD XP2000 and KT400 rig. I used to be running a PII-450 and i440BX rig with 2 x 256MB PC100 ECC SDRAM DIMMs.
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