mikesw Posted October 4, 2008 Share Posted October 4, 2008 I just bought my companies mini-tower Dell Optiplex GX280 with an Intel lga775 3.0ghz 530 processor.It has the Intel 915G chipset.I'd like to upgrade to the Intel lga775 3.6ghz 661 processor. The earlier (B1,C1) stepping is 86 watts for thisprocessor; however, my current processor (P4/530) is 84watts, so the heat sink shouldn't have a problem with these extra two watts and it is the performance heat pipe kind that Dell installed. The later (D0) steppings for the intel 661 are at 65 watts. The other differences are the (B1) operates from 1.25-1.4 volts which is what my current intel 530 uses, butthe (D0) operates from 1.20- 1.325 volts. I'm not sure if the motherboard will either drop down in voltage to 1.325 maximum,or whether the extra 0.075 volts (or in other words 1.4 volts) will damage the (D0) stepping processor.So the heat sink problem is solved.If I get the proper stepping, I'll be able to match the current motherboard voltage range or assuming the other voltage doesn't damage the processor.The only other thing is the Intel 64 capability since my 530 doesn't support it nor does the BIOS know about it. Thus, thismay confuse Windows 2k , XP or Vista.FSB speed of 800mhz for either processor is the same.One possibility is to find a Dell BIOS that supports the 65nm cedar mill processor and find a program that will force the BIOS to beupgraded to support it, but it may not have intel 915G support though.Any thoughts on this. Link to comment Share on other sites More sharing options...
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