PC wont boot after any overclock (HELP)

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cougmyster

Jun 18, 2018
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Hello,
I am having a weird issue where my pc won't boot and will continue to turn off and back on again every time I apply any overclock. I had a overclock on my CPU (Intel i5 6500) for about a month until it started doing this. It will do this forever or sometimes for only 2+ min until it somehow boots and I am able to get into windows with the overclock applied. I have tried everything, cleared CMOS countless times, trying different settings, and reapplying thermal paste with my hyper 212 Evo with no luck. I know that the i5 6500 isn't made to be overclocked but when I did have it overclocked I pushed it to 4.0ghz and stress tested it with prime 95 for 3 hours and thermals didn't go over 70°c. if anyone can help me that would be great!

PC specs
CPU: Intel i5 6500
CPU cooler: Cooler Master Hyper 212 evo
GPU: MSI gtx 1060 gaming x 6gb (overclocked)
RAM: 8gb's of Hyperx fury DDR4
MOBO: MSI z170 A Pro SLI
PSU: Evga 500B
 
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Barty1884

Barty1884

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Apr 16, 2015
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The only OC available for a 6500 was via BCLK..... so to hit 4.0GHz, you'd be running 36x 111?
That's really quite high, and I'm surprised it ever worked ..... BCLK isn't CPU-only. It'll impact everything from your memory to your PCIe slots...

As for the issue now.... have you updated the BIOS? Have you recently installed the larger Widnows updates? There have been some weird bugs between OS and BIOS, when you're on older revisions....

I would potentially suspect the PSU too - the 500B isn't great.
BUT, the 6500 is a 65W TDP Chip.... and even overclocked, a 1060 can't really be pushed too much.
 
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cougmyster

Jun 18, 2018
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0
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I cannot update the bios because with the newer bios's they removed non K overclocking because Intel wanted people to buy the Intel i5 6600k to overclock. My settings with the overclock that worked was 130 with the BCLK, 1.35 with the CPU voltage, and with the memory, i had it at 2400 and that was stable and i am puzzled on why it all of a sudden started doing this. With my mobo it has troubleshooting lights and when it is trying to boot it shows the DRAM light on after i apply a overclock to the cpu and not the ram at all. Its weird because it was working fine for a while then it started to not boot
 
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CaptainCretin

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Jul 18, 2016
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By using BLCK, you ARE overclocking the RAM as well. It could well be the RAM is starting to fail under the stress; run Memtest overnight and see if it turns anything up.

BCLK over clocks so many parts of the motherboard, it only takes one component to prematurely wear out and suddenly just getting stock speed is a gamble.
 
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cougmyster

Jun 18, 2018
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I am running at stock speeds on everything right now and everything is okay and boots like a charm. If I run memtest what should I look for in the testing to figure out my problem?
 
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cougmyster

Jun 18, 2018
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0
10


ill try that tonight and see what comes up but i don't think it's my ram but worth a try
 
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