[EMAIL PROTECTED] 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 >> >> >> >> >> > > > > 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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