Updating prescott 80547 motherboard

Hi, A friend of mine gave me an used Dell Dimension 8400.I am confident that is has Pentium 4 CPU in it with only 1GB of RAM.If the center of your fan does not have a sticker on it, try putting some oil and the same quantity of graphite powder in the bottom side of the fan just above the heat sink where its spinning mechanism rests.Place a small amount of thermal grease on the top of the processor and start spreading it with your finger.I know it's not due to having junk on my HDD, because I recently cleaned it up a bit.

As a newer member I'm trying to tackle a project but somehow got in a little over my head...despite how replacing a CPU is about a 3 on the 1-10 scale of hard stuff to do..I really need some help. It has a 3.0Ghz processor (which uses an LGA 775, “Socket T”, Intel desktop CPU socket.) It worked just fine, but a little slow for my wife’s home office needs.

I am looking for a good CPU upgrade (below 0, preferably) for the 2005 Dell Dimension 9100.

I have upgraded the RAM from 1GB to 3GB, and have upgraded the video card from an ATi Radeon x1050 to an AMD Radeon HD 6670.

The latest Celeron design (as of January 2016 As a product concept, the Celeron was introduced in response to Intel's loss of the low-end market, in particular to the Cyrix 6x86, the AMD K6, and the IDT Winchip.

Intel's existing low-end product, the Pentium MMX, was no longer performance competitive at 233 MHz.