I don't really understand which socket is compatable with it. A site said:
"Only compatible with new Intel 965 and 975X socket 775
Motherboards (Older 975 boards are not compatible)"
Are they all socket 775?


Most importantly, which one is best?

Thanks. sorry for being stupid, I'm doing this for my brother who won't research his own computer.:-|

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A few practical points to add to the thread — useful whether the board is new-old-stock or used.

, covered the basics; the next step is to treat the motherboard choice as a feature and support decision rather than just “will it fit.” First, confirm the exact CPU model and then check the motherboard maker’s CPU compatibility list (the vendor page that lists supported processors and the minimum BIOS required). That list is the authoritative source: if the board needs a BIOS update to recognize the CPU, you may need an older compatible CPU or the vendor’s recovery/flash tool to perform that update.

Look at power delivery and BIOS options. Good VRM design (more than two phases, solid heatsinking) and a BIOS with voltage/FSB controls matter if you plan to overclock. For everyday use, prioritize a board with stable power, a recent BIOS that lists the CPU, dual‑channel memory support and enough DIMM slots for future upgrades. Also check the QVL/memory list for tested RAM modules.

If buying used, inspect for bulging or leaking capacitors, bent pins in the CPU socket, and a fresh CMOS battery. Ask whether the seller updated the BIOS and verify the board’s revision number — vendor revisions can change CPU support. When a CPU is not detected after installation, the usual fixes are: verify power connectors (24/20-pin and CPU 4/8-pin), try a minimal boot (one stick of RAM, no drives), and update/recover the BIOS per the vendor procedure.

In short: use the vendor CPU support list as the final word, pick a board whose power and BIOS features match your goals (stability vs overclocking vs expansion), and if buying used verify physical condition and BIOS level before purchase.

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I don't really understand which socket is compatable with it. A site said:
"Only compatible with new Intel 965 and 975X socket 775
Motherboards (Older 975 boards are not compatible)"
Are they all socket 775?


Most importantly, which one is best?

Thanks. sorry for being stupid, I'm doing this for my brother who won't research his own computer.:-|

There all socket 775 they just have different chipsets. As for which one's best is a matter of opinon. The best is the one that does everything you want it to without breaking!;)

Thanks I'll start comparing them now that I know compariable

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