ross549 Posted November 12, 2003 Posted November 12, 2003 When I run a dual-CPU setup, do I need to have matched processors, or can I just run two of the same speed and spec?Thanks!! Quote
Peachy Posted November 12, 2003 Posted November 12, 2003 I believe they have to be matched. Which processor do you currently have? Quote
Marsden11 Posted November 14, 2003 Posted November 14, 2003 Older systems yes, newer systems no.Old Tyan Tigers were very picky about CPUs and such. We use SuperMicro Duals and Quads now without any matching issues. I should point out we don't mix speeds of CPUs but with the CPUs all coming at once from the vendor we just install them in no paticular order. Quote
ross549 Posted November 14, 2003 Author Posted November 14, 2003 I believe they have to be matched. Which processor do you currently have?This question is for the Dell Precision workstation 410 I just bought off of ebay....It comes with a PII 400, but looks like it will take dual anything up to a PIII 700.Riight now I am thingking about dual PIII 500's.... seems to be the sweetspot for price on fleabay. I might be able to get cheaper ones if I buy seperately, than just in a match set. Quote
Marsden11 Posted November 14, 2003 Posted November 14, 2003 OK, with PIIIs you are going to have to match as best you can. They should be as close as possible in stepping...You will also need a voltage module. They always shipped the old PIII dual capable systems usually with single CPU and a single voltage module. Quote
ross549 Posted November 14, 2003 Author Posted November 14, 2003 Voltage Module??What would I need one of those for if I am filling both slots with PIII's? Right now, there is a card in the second slot. Is that a voltage module? Quote
Marsden11 Posted November 15, 2003 Posted November 15, 2003 On the older PIII dual motherboards, manufactures placed a voltage module near the individual CPU socket. On dual systems that shipped with only a single CPU, they left the second voltage module slot empty. Your system may or may not have these voltage modules.Looking at your system board there are no slots for voltage modules. (It's a newer board)The 410 only goes to 550MHz via the jumpers.Looking at the memory specs...The four DIMM sockets on the system board can accommodate combinations of 32-, 64-, and 128-MB DIMMs up to a total memory capacity of 512 MB using unbuffered SDRAM, or it can accommodate combinations of 256-MB DIMMs up to 1024 MB using registered SDRAM DIMMs. Quote
ross549 Posted November 17, 2003 Author Posted November 17, 2003 Marsden11,I went to the Dell Support site again, and punched in my System tag number. Nothing in the docs changed.... still say the board is PIII compatible. I went ahead and ordered a set of PIII 650's (matched). If they don't work (doubtful), I will go ahead and resell them on ebay. Then I will just get a second PII 400. Quote
Marsden11 Posted November 17, 2003 Posted November 17, 2003 The diagrams I posted above were supposed to be for the 410. Maybe there are different 410s out there. Quote
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