Aux is overheating and computer chrashes if I dont underclock my cpu to single core.

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I dont know if there is a relation to this. If I have more than two cores I cant get past the "Windows is starting" logo. Is aux associated with this? Others say its nothing, but I think otherwise. Help please.
 
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Ok, I've seen the strange AUX 128C bug before. Wouldn't worry about that false reading. Is your CPU an Intel or AMD? If your getting crashes when your NOT underclocking them when a load is placed on them, I would be looking at thermals as the first potential cause. Did you recently assemble this PC, or did this start happening out of nowhere? If you just built it, I'd try removing and reinstalling the CPU cooler. If it's an OEM machine, maybe remove the cooler and install fresh thermal compound. It may be heating up and crashing the computer due to overheating/bad mounting. Also, I would still check your temps using Coretemp if you have an Intel CPU, and look at AMD Overdrive software in the "thermal margin" section. This will...

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In speed fan there is something called aux, I dont think its real because if it was 128 C, my computer would be melting. My video card was installed wrong, I just put it in properly. Im going to run it with dual cores. Ill check it.
 

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Alright, typing this with two cores enabled. Both get loaded up real easy though. Opening a web browser gave both cores a 60%+ load. Crashed once when it got to 80% before. If they reach a high load does that cause it to crash? Going to run some intensive tasks now. Hoping for the best.
 

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OK! I Enabled each core, but underclocked them, Running well, Core 1 is having the most usage thou (theres core 0, core, 1 core 2, and core 3,) So far so good.
 
Ok, I've seen the strange AUX 128C bug before. Wouldn't worry about that false reading. Is your CPU an Intel or AMD? If your getting crashes when your NOT underclocking them when a load is placed on them, I would be looking at thermals as the first potential cause. Did you recently assemble this PC, or did this start happening out of nowhere? If you just built it, I'd try removing and reinstalling the CPU cooler. If it's an OEM machine, maybe remove the cooler and install fresh thermal compound. It may be heating up and crashing the computer due to overheating/bad mounting. Also, I would still check your temps using Coretemp if you have an Intel CPU, and look at AMD Overdrive software in the "thermal margin" section. This will give us a starting point to see where your temps are actually at.
 
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