Tradesman1 :
That's fine and it's your assertion, your thought, your theory, etc.....that doesn't make it everybody else's, and if you've only encountered this twice, then you obviously haven't done much with PCs or simply only 'work' on entry level and pre-builts (where you prob ran into this problem) as they have locked BIOS's and I do most of my work with high end systems, it's a big difference....Also according to Intel OCing is out of spec and voids warranty, so I would say the cavalier ones here are Intel - why would they MAKE CPUs to OC when they say they won't stand behind their product if you do so, rather two faced of them, I'd say....also strange that they are certified some sets of sticks as XMP compliant that run at 1.6 and 1.65, wonder what they tested them with?
Thats a good question.
As to my own level of experience, on a day to day basis i mostly keep my ministries dozens of P4s and ancient Celerons running (ram voltage isn't something i deal with regularly as it isn't an issue), I salvage all the computers we get donated for parts, and rebuild these ancient junk piles from the ground up when they break down, or just to upgrade everything to win7 (that's a headache, digging up the graphic cards and good ram to allow p4s and celerons to run windows 7). Of course we do get some good eq in from time to time... but that's usually the exception not the rule. I make a little money on the side building modern systems, repairing non-ministry computers, and troubleshooting, and have been an overclocking enthusiast since i was 16 (back in 94).
You raise an excellent question about intel (and amd's) business practices. Why intel would approve ram outside their own product specs is baffling to me, when according to their disclaimers it invalidates the warranty on their own chip. That they release a chip with a "K" designation and in the next breath state that using the chip as designed invalidates the warranty... yeah.
It is very two faced.
As a sidenote, what i do on my own computer and what i suggest to others rarely matches. I've always aproached overclocking and performance computing with an almost reckless abandon... in my mind these parts are meant to be pushed till they break, and if you can't afford breaking them, you shouldn't be pushing them. Of course right now i can't afford to break my stuff, so i am babying it a bit more then i like.
But when i talk to someone else, i try to give advice assuming that they can't afford to break anything, and expect their parts to survive a while. so my advice to others tends to differ a bit from how i work on my own stuff. So on a personal level i get why you would suggest someone go with 1.65V ram. lord knows i probably would if it was my only option (and it is at 2400+ speeds).