Re: a mere 20 years...
"That's just rubbish."
I CAN'T HEAR YOU, THE HP'S ON. WHAT?
""Motherboard, Chassis, Power supplies and Super Barebone products: Supermicro provides a three-year warranty for labor and one-year warranty for parts."
Seems to depend on the product. I was looking at servers, Twins and blade systems. Seems their "parts only" stuff, like mobos only get the one year warranty. Gotta admit, I haven't bought "just parts" in some time.
"Where did you get this nugget of information? SOME SM servers are designed like that. And in specific configurations (couldn't find the specifics on SM website though). Most Supermicro rack servers seem to be operating at max 35°C like the competition."
From their product managers. Though they aren't warranted for operation beyond standard temps, most of their lineup is actually designed to handle far higher temps than advertised. And yes, I believe them when they say it. Why? They've been nothing but honest and up front with me for years, about the benefits and the drawbacks of everything I've asked about.
What's more, I've been able to have their standard servers run at 45Cish temps for prolonged periods in testing.
"Dell, HP and IBM (Lenovo?) all have some server configurations for 45 C operation and SM has a couple models with designation for 47 C inlet temp."
Yep, with all manufacturers, only some systems are warranted for high temp environments. The difference I've found is that you can consistently push Supermicro's gear far past the advertised temperatures for rather long periods of time.
That said, Supermicro doesn't have any of the really exotic stuff. look here for a discussion of why I think that HP's liquid cooled blades might well be the bee's knees.
Liking Supermicro doesn't mean I don't like other manufacturers. (Though Dells are louder AND TURNING ON THE HP MEANS I CAN'T HEAR YOU!) As a general rule of thumb I find the following applies:
1) Supermicro is the default vendor. The price is right!
2) Supermicro is the vendor you choose if you need to install servers in warm or really cramped places (or in the same room as people.)
3) Dell if the vendor you choose if you're a rack monkey and/or see yourself frequently moving things around on racks. Dell rail kits = godlike.
4) HP is the vendor you choose if you need something exotic or bizzare. Beware you'll have to license every freaking feature and you'll get nickled and dimed to death.
5) Lenovo/IBM is what you buy when you just need to shut up people who are stuck 20 years in the past and/or your distie doesn't sell Supermicro.
6) Supermicro has nice starter switches, Dell has much better switches, and HP can make your whole universe into a dynamic routing table made out of sex and awesome.
7) They all use the exact same company to provide global support to rural areas, so ask them pointed questions about part availability and distribution.
8) When trying to talk to sales, Supermicro will be honest and tell you everything you want to know. Dell will be honest and tell you what they can (on the record) but have to switch to "off the record" to tell you the rest. HP will just try to sell you more things every time you ask a question, so never call them unless it's an emergency and you have the ability to blackmail the salesguy. Lenovo is yet an unknown.
9) HP's phone-in tech support are amazing, but I wish turnover wasn't so high. Dell tech support are not at HP levels, but you can form longstanding relationships with them, as they don't go anywhere. Supermicro's tech support isn't really anywhere near so good, it's still largely reliant on the channel. (Mind you, they don't support a lot of software other than their BMC directly, so...) Lenovo is an unknown.
No one vendor comes out ahead of all others. They each have their niches...and clearly I'm not the only one to recognize that Supermicro are worth the time, or they wouldn't be kicking ass like they are.