I tried upgrading my processor but when I boot it gives me 1 short + 1 long beep (repeating on a black/blank screen). Which would be a memory problem according to the manual. Nothing wrong with my memory tho(?). When I put the old processor back; everything works fine.

This is my computer: http://www.manualslib.com/manual/435619/Hp-Pro-3120-Minitower-Pc.html?page=2#manual

I upgraded from E5500, 2-MB cache, 2.80 GHz to Q8400, 4-MB cache, 2.66 GHz

New thermal paste between changes and all that. The fan doesn't seem to run any faster than usual when I try to boot with the new processor.

I have 8gb RAM, Windows 7 64-bit. Hope I got all the info required down. I was really looking forward to this upgrade - now I'm just a sad panda. Hopefully someone can help?

Thanks in advance.

SOLUTION: So apparently this was a memory issue - the new cpu booted with one of my sticks (http://www.electrobyt.com/index.php?main_page=product_info&products_id=6129#.VpD5BFLlnyF) and that one only. No other combinations or singles of my sticks worked. I even tried different dimm-slots for everything.

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    Did you upgrade the BIOS to the latest version before installing the new(er) processor? If not, go try that and report back. :) – Ƭᴇcʜιᴇ007 Jan 8 '16 at 20:38
  • CPU has memory on die. The bios will qualify all memory in the system at startup. – Moab Jan 8 '16 at 20:40
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    Why is this tagged with memory when it has nothing to do with memory? – Ramhound Jan 8 '16 at 20:40
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    The processor your trying to upgrade to isn't supported by your hardware. Your new processor requires 30 additional watts in order to function. What made you think it was compatible? – Ramhound Jan 8 '16 at 20:42
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    @Ramhound Having a bad day? It's tagged with memory because of the beeping code and as Moab said; it's listed as supported. – eskilla Jan 8 '16 at 21:55

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