Intel Core 2 Quad Q9300 Windows 10 Pro 64Bit

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Ive been using some parts from an old computer and putting them into a pretty ancient Acer Aspire M1640, just to make a computer that can play last-gen era games well.

To do this, I put an Intel Core 2 Quad Q6600 and a Radeon HD 6670 into the Aspire.

The problem is that CPU-Z only shows two cores, and msinfo32 only shows 2 cores and 2 logical processes, despite the Core 2 Quad being a quad-core processor.

Also, I tried a Live USB of Ubuntu and that also only reports two cores, so it seems likely that its a BIOS or hardware issue.

Intel Core 2 Quad Q9300 Windows 10 Pro 64Bit

Specs: System Model: Acer Aspire M1640 Motherboard: AcerNvidia mcp73ve Bios: American Megatrends R01-C2 (latest version) Processor: Intel Core 2 Quad Q6600 2.4GHz PSU: 250w (As far as I can tell, its a custom Acer one, made for these Aspires) RAM: 4GB GPU: Radeon HD 6670 OS: Windows 10 Pro 64bit CPU-Z Screenshot.

It doesnt even show system info so I cant be certain that the computer is seeing all cores at the BIOS level.

Probably a million other things that I cant recall at the moment.

My current theories: 1) This is my first time upgrading a CPU and when I took out the old processor (A single core pentium, I think) some pins in the LGA775 socket looked slightly askew.

Is it possible that a bent pin is making it so that only one of the dual-cores in the stack is actually connecting to the motherboard 2) I havent upgraded the PSU yet, despite adding a much meatier processor and graphics card.

The issue may be deactivated cores by the BIOS, but I highly doubt it.

Ive seen people with Core2Quads in their M1640 without issues.

The BIOS doesnt seem to have any support for viewing system specs (Its a bloody ancient BIOS and I think Acer tampered with the available settings) so I cant tell if the BIOS is recognising all the cores.

I suspect it isnt, though, because an Ubuntu Live USB is only picking up two cores, just like Windows.

I havent taken the CPU out yet, I wanted to leave that until I had exhausted all other options.

If there is nothing else, then straightening some pins will be my next step.

Or the BIOS is locking you down.and disabled the 2 extra cores.

Dell had some Optiplexes that were 2 core, or 4 core dpending on which MB was installed.

I guess you can have two things then: 1) A defective CPU 2) A defective motherboard.

I suggest changing one or the either, whichever is cheaper, to confirm.

Intel Core 2 Quad Q9300 Driver