PC won't POST after heatsink switch

[brkdvvn]

I decided to updrage my heatsink to a cooler master hyper TX3 today and after installation pc wont boot. When I took the stock cooler off it it took the cpu with it and was tough to separate. Cpu appeared in tact, no bent pins or other noticeable damage. Cleaned the thermal paste off and put it back in. I took my gpu out for cleaning and the ram too. After putting everything back, besides the ram which I forgot somehow, I tried booting and nothing. Thought okay I forgot the ram I'm a moron. Put the 2x8gb sticks back in, no luck. Tried each stick separately in each dimm, no luck. Tried booting without the gpu using mobo hdmi, nothing. Replaced the heatsink with the stock version, still the same problem. Obviously I messed something up during the switch, I'm thinking either cpu or mobo.

When I turn the system on all fans, leds, hdd come on and stay on until I turn it off. It just says I have no signal on my monitors. The lights on my mouse and keyboard don't light up either, when plugged in front or back. I have no mobo speaker (gonna get one tomorrow to see what it says). I'm on a real budget and can't afford to replace anything for another 2 weeks at least, just hoping its not the cpu otherwise I'm lookin at a serious downgrade for the next little while. Any input would be great. Thanks

CPU: AMD FX-6300
MOBO: ASUS M5A78L-M/USB3
GPU: ASUS RADEON R9 270
PSU: CORSAIR CX500
NEW HEATSINK: COOLER MASTER HYPER TX3

 

[brispuss]

Check that all cables/wires that need to be connected are connected properly, this includes CPU auxiliary power and monitor cables.

Check that the CPU was inserted the correct way into it's socket. Again (carefully) check the CPU and its socket that there are no missing, bent, damaged pins/pads, and that there is no dust or debris on or amongst the pins/pads.

Check that there are no damaged or missing contacts, and that there is no dust or debris on the memory, on the video card, and in the memory slots and in the PCIe slot(s).

Clear CMOS.

 

[Plumboby]

have u got the correct fan plug plugged in for ur cpu fan

 

[Calvin7]

You wrote, "When I took the stock cooler off it it took the cpu with it and was tough to separate".

How to uninstall and install an AMD processor and a heatsink
http://support.amd.com/en-us/kb-articles/Pages/HowToReplaceAMDCPUnHSF.aspx

Note! Twist in a clock and anti-clockwise rotational direction, which creates a shear force in the thermal interface. Failure to break the adhesion seal between the HSF and the processor may result in pulling the processor out of the socket, possibly resulting in processor and / or socket damage.

 

[brkdvvn]

Problem was I didn't notice a chunk of dust must have made it into the gpu slot when I was cleaning, all is well.