New Build, Bad CPU?

[spinniker]

I recently built a new PC for a friend who wanted a cheap computer, and they purchased the following combo from Newegg:
http://www.newegg.com/Product/ComboBundleDetails.aspx?ItemList=Combo.1606524
Not too longer after the build the system started experiencing issues with graphical display (using integrated graphics) and running slower than I would expect for a new machine. At this point (a week later) the system will not run for more than 30 minutes (will give BSOD around 30 min.), and is very sluggish while running. The 3 consistent errors I get are MEMORY_MANAGEMENT, IRQL_NOT_LESS_THAN_OR_EQUAL, PFN_LIST_CORRUPT.

After doing some initial research I tried swapping in a new DIMM of memory, and newegg has since replaced the motherboard, neither of these made a change. As of yesterday, the CPU was reading a constant 100% usage, and only showing 4 of the 8 threads you would expect from a quad core hyper threaded. The temperature has never exceeded 47C, and I have made sure all applicable chipset drivers, etc. are installed for the motherboard. Should I swap this CPU out or is there something I am missing. Any and all ideas are welcome. Thank you in advance.

 

[CTurbo]

That i5 does not have hyperthreading.
That psu is a fire hazard. You should replace it asap.

 

[spinniker]

Replace it because it maybe faulty, or replace it because that particular model is a known fire hazard?

 

[bfitzpatrick]

Replace it because it maybe faulty, or replace it because that particular model is a known fire hazard?

It's a low-end brand of PSU, and they have a reputation, so...

Switch it out for something like this one.

 

[CTurbo]

Logisys psus are among the worst

 

[teknobug]

EW that PSU brand, they GLUE the circuit to the PSU case which can melt and catch fire, not screwed on like most PSU's.

 

[spinniker]

Ok thanks for the advice. Any chance this is causing the CPU problems, or is the CPU bad as well?

 

[teknobug]

CPU should be fine, chances of faulty CPU is extremely low. It's most likely the power current isn't being delivered properly, other things could be the motherboard, but that PSU has to go.