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Re: Dupal Opteron on Sarge



valentin_nils@be-known-online.com wrote:

>Forgot to add one thing.
>
>As for the Power Supplies (PS). I tried everything from 400W to 550W and
>came to the conclusion that mostly 400W is fully acceptable for most
>machines (1-4 disks). I know that the shop assistants often recommend
>stronger Power supplies (after all thats their business ;-).
>
>Bear in mind that the heat has to go somewhere ;-)
>
>Best regards
>
>Nils Valentin
>Tokyo / Japan
>http://www.be-known-online.com
>
>  
>
>>O.K I guess I have to take the risk that Lord Sauron will flame me for
>>what I say next ;-)
>>
>>I would rather recommend you a 2xCPU MB instead of a single CPU MB
>>You will easily find many 2xCPU MB out there and you may want to consider
>>the following:
>>
>>- most have only 32 bit PCI slots, look for 64 bit PCI slots and the max
>>bus speed (133mhz)
>>- server boards come (optional) with onboard scsi cards
>>- you may still find additionally 4xSATA & IDE on the same MB
>>- (optional) SCSI raid card
>>- (optional) server admin card
>>
>>If you take this all into conclusion you will probably opt for the
>>S2882UG3NR or a similar board from another maker
>>http://www.newegg.com/Product/Product.asp?Item=N82E16813151151 *no scsi
>>http://www.newegg.com/Product/Product.asp?Item=N82E16813151152 * with scsi
>>http://www.newegg.com/Product/Showimage.asp?Mode=&Type=&Image=13-151-152-01.jpg%2C13-151-152-02.jpg%2C13-151-152-03.jpg%2C13-151-152-04.jpg%2C13-151-152-05.jpg&CurImage=13-151-152-02.jpg&Description=TYAN+S2882UG3NR-D+Dual+Socket+940+AMD+8131+Extended+ATX+Server+Motherboard+-+Retail
>>
>>Note the scsi raid card socket (option), white and in the middle left)
>>
>>Having the 64 bit pci bus also allows you to navigate real HEAVY loads
>>between scsi discs and the CPU & Memory.
>>
>>Regarding CPU I would probably choose the 246 or 248 ($240-310) which are
>>slightly cheaper than the 252 and, lets face it, the CPU speed alone wont
>>really change so much on the systems performance.
>>
>>http://www.newegg.com/Product/Product.asp?Item=N82E16819103412
>>http://www.newegg.com/Product/Product.asp?Item=N82E16819103433
>>
>>Another concern is the heat those CPU beasts produce (90W each). You may
>>want to find a cooler solution which doesnt grill you or the CPU and also
>>doesnt make you death. (I am sitting next to such a beast right now ;-)
>>
>>Most cooling systems go up to the 246 or 248. Finding one for the 252
>>might be difficult. I had a hard time finding a cooler which would do his
>>job for the 248 while still allowing me to hear my own voice ;-).
>>
>>I would invest the saved money (compared to the 252) into Memory or SCSI
>>and use the SATA for a backup solution. I prefer SCSI, as for me it has
>>shown to be reliable in the long run and still outperforms most SATA/IDE
>>setups.
>>
>>Note that 2xCPU systems are not twice as fast as single CPU systems. The
>>SMP setup does have a bit of a overhead on your OS, so expect something
>>like 0,8x the speed of a single CPU system.
>>
>>What the 2xCPU system gives you however, is the ability to handle heavy
>>load. It can handle obviously more requests than a single CPU system. It
>>will also take advantage of the hyperthreading bus *communication bus
>>between the CPUs.
>>This means that CPU1 can *borrow Memory from CPU2 if it is required for an
>>application.
>>
>>For the case I would choose the CM Stacker. It does Unfortunately not
>>offer the redundant PS, but you can put 2x PS from the maker of your
>>choice. It wont be hot swabable, you will have to switch the plugs
>>yourself.
>>http://www.newegg.com/Product/Product.asp?Item=N82E16811119042
>>
>>The design is also quite appealing I believe. If you do opt for the CM
>>Stacker make sure to get the Optional Cross floor fan.
>>http://www.newegg.com/Product/Product.asp?Item=N82E16800887011
>>It will make sure to get the heat out of the case, and that silently.
>>
>>If you prefer to show off the case, there is also a sie window available
>>http://www.newegg.com/Product/Product.asp?Item=N82E16811999760
>>
>>I hope that I could make some valid points to make your decision easier
>>for your next system.
>>
>>The system above is more expensive than "Lord Saurons" setup but it adds a
>>lot of options and is really a sound system (not to say a beast ;-)
>>
>>I usually buy the parts not all in one go, but as required.
>>
>>Newegg as suggested by "Lord Sauron" does give a good service and I can
>>back him up with that.
>>
>>I currently have 2 Opteron systems online which should be accessable for
>>the public.
>>
>>1) 203.143.127.108
>>2) 203.143.127.98 (testing)
>>3) 203.143.127.99 (from October)
>>
>>Do you have the possibility to take an opteron system for a testride ?
>>(You might find that some shops might let you try a system)
>>
>>Best regards
>>
>>Nils Valentin
>>Tokyo / Japan
>>http://www.be-known-online.com
>>
>>
>>
>>    
>>
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>  
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On the topic of power supplies, buy a decent supply from a good brand -
far more important than sheer "wattage". Companies like Q-tec lie about
their wattages anyway, and their 650W supplies can barely push 300



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