NO!Two Netburst based Processor cores on the SAME chipset?Get outta' here!When did they come up with that?OH, I'M JUS KIDDIN'!
http://h18000.www1.hp.com/products/quickspecs/12145_na/12145_na.HTMLThe HP Compaq dc5100 Desktop PC uses an Intel 915GV motherboard chipset.Since we know that the Northbridge chip, of the motherboard chipset; handles the Faster capabilities of a computer;i.e., Processor, Ram Memory, and HIGH-speed graphics; let's look at the Intel 915GV chipset,
http://en.wikipedia.org/wiki/List_of_intel_chipsets#Pentium_4.2FPentium_D.2FPentium_EE_chipsetsNo sir/ma'am.The Intel 915GV motherboard chipset only handles Single Core processors;Intel Pentium 4,and,Intel Celeron,and,Intel Celeron D.(With a 533MegaHertz Front Side Bus, or an 800MHz FSB)The Celeron D is NOT a dual core processor,
http://en.wikipedia.org/wiki/Celeron#Prescott-256"The
D suffix actually has no official designation, and does not
indicate that these models are dual-core. It is used simply to
distinguish this line of Celeron from the previous, lower performing
Northwood and Willamette series, and also from the mobile series, the
Celeron M (which also uses 3xx model numbers) Unlike the Pentium D, the Celeron D is Not a dual core processor."Yeah, I know. I'm just a 'Ray of Sunshine'.You know you can pick up a motherboard pretty cheap nowadays, that WILL support the lowly Pentium D, for not much money.Problem is you will need to replace Ram Memory also.By the time you get a motherboard chipset that supports dual core Processors (CPU), you are going to be using DDR2 Sdram ram memory, instead of the DDR Sdram ram memory you are using now.OK, Motherboard, CPU, and Ram Memory.Oh, the Power Supply. Won't do either.240 Watt unit, or 300 Watt unit?Sure.............OK.Back in the day those Power Supply's were made, Power Supply manufacturer's were 'fudging' the actual maximum rated Wattage.True Wattage was more like 60 to 70 percent of what was stated.Why?SOLD more Power Supply's.240 Watts? Simply divide by 10. = 24.For 60 percent, take 60 times 24. = 144 Watts70 percent? 168 Watts.300 Watts?60 percent is 180 Watts.70 percent is 210 Watts.I wouldn't try to run a Barbie doll with that low a Wattage, of Power Supply. (Barbie doll? What?)Need at least a decent 350 Watt power supply, from today's manufacturers. 80 percent constant duty cycle, for most good units; or higher.So...............Max out the Intel Pentium 4 CPU.4GB's of 533MHz DDR Sdram ram memory.(PC4200, or PC4300. Depends on the manufacturer as to how they name it)By the time you spend that much money, you may as well buy another Motherboard, Processor, Ram Memory, and Power Supply.Yes, may as well buy a better computer.I know. Quit trying to cheer you up.Around here we have Craigslist, and Ebay, for two places.Could pick up a better computer, for around the same money, as you would pay for all the upgrade parts above.Which is better? Upgrade the Processor, or upgrade the Ram Memory/For the better 'Bang for the Buck', upgrade the Ram Memory.The CPU (Processor) has a built-in cache.L1 cache, and L2 cache. (Newer CPU's have an L3 cache)The Cache is a small memory area for the CPU. It is the FIRST memory area the Processor (CPU) reads.This is because it operates at the same frequency rate, as the CPU does. (Frequency rate = 'Speed'. Operates at the same 'Speed')Next inline is the Ram Memory. Ram Memory -> typically, operates at half of the Processor's Front Side Bus. (FSB)This is why upgrading Ram Memory is a good idea.It isn't so much of getting Ram Memory, that operates at a higher frequency rate ('Speed'), as it is to have MORE ram memory.Example;PC3200 compared to PC4200.4GB's of PC3200 is better than 2GB's of PC4200.(DDR Sdram at 400MHz = PC3200)Moving on............Motherboard chipset:Chip and Chipset are slang terms for I.C.Integrated Circuit,
http://en.wikipedia.org/wiki/Integrated_circuitThe motherboard chipset for your computer, consists of a Northbridge chip, and a Southbridge chip.{Motherboards that support the Intel Core i technology, (Core i3, Core i5, Core i7, etc), do NOT use this motherboard chipset technology. Neither do some of the AMD CPU's }
http://en.wikipedia.org/wiki/File:Motherboard_diagram.svgAs stated previously, the Northbridge chip handles the Faster capabilities of a computer;Processor (CPU), Ram Memory, and HIGH-speed graphics.The AGP technology, and the PCI Express technology; ARE high-speed graphics.Using a graphics card in a PCI slot, or using Integrated Graphics; is NOT high-speed graphics.The slower capabilities of a computer are handled by the Southbridge chip.1) PCI Bus / Integrated Graphics.(Another term for Integrated Graphics, is OnBoard Graphics. A term that seems to have gotten lost.It explains better; ON the motherBOARD )2) IDE Bus3) SATA Bus4) USB Bus5) Ethernet6) Audio (Sound)Point?Look to see what the Northbridge chip is, as I have shown you; and you'll get a good idea of what Processor (CPU) support is.For additional questions please post in a Comment.Regards,joecoolvette(I get tired of looking on websites, that just say NO, and do not explain why )