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i set my asus z87 rog hero to optimal performance when in easy mode and it wont boot ? please help

post #1 of 13
Thread Starter 
to day I went in to the uefi bios utility - ez mode of my asus z87 rog hero to check how I had every thing set up . on the bar where it says system performance and has the options of ( power saving ) ( normal ) ( asus optimal ) I had it set on normal so I changed it to asus optimal I then clicked save and reset and when the computer booted I got a blue screen with a message saying windows encountered a un repairable error please remove any recent hard ware installed and so on and so on . what is wrong with my computer ?
    
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post #2 of 13
If you can't turn it on at all, at this point I would personally clear cmos and go from there.
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post #3 of 13
Thread Starter 
Quote:
Originally Posted by Marc79 View Post

If you can't turn it on at all, at this point I would personally clear cmos and go from there.
i had to turn off the power on my power supply to turn off the computer then i rebooted it and went in to the uefi bios easy mode and set it back to normal and now it boots . why cant i set the system performance to optimal ?
    
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post #4 of 13
You can't set the system performance to Optimal because that preset supplies too little CPU voltage for the CPU frequency that the preset sets for you, so the system crashes when it tries to load the OS.

These profiles are necessarily generalized, and it turns out that they do not work for your particular processor.

You will have to:

1. Set the CPU frequency and CPU voltage manually for yourself, OR
2. Live with Normal, OR
3. Get a new CPU.
post #5 of 13
Thread Starter 
Quote:
Originally Posted by drobertbaker View Post

You can't set the system performance to Optimal because that preset supplies too little CPU voltage for the CPU frequency that the preset sets for you, so the system crashes when it tries to load the OS.

These profiles are necessarily generalized, and it turns out that they do not work for your particular processor.

You will have to:

1. Set the CPU frequency and CPU voltage manually for yourself, OR
2. Live with Normal, OR
3. Get a new CPU.
what do you mean by another cpu a i5 4670k or another i7 4770k ?
    
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post #6 of 13
Either. The Haswell chip is notoriously inconsistent and varies widely from individual to individual, so much so that ASUS R+D has actually stated:

"The issue is that the Haswell CPUs are all over the place for voltage requirements when overclocked, so the profiles don't work for everyone. If you have a CPU that needs lots of voltage, the profile VCore will be too low. Not much we can do about that, as it would screw things for the better samples out there."
post #7 of 13
Thread Starter 
Quote:
Originally Posted by drobertbaker View Post

Either. The Haswell chip is notoriously inconsistent and varies widely from individual to individual, so much so that ASUS R+D has actually stated:

"The issue is that the Haswell CPUs are all over the place for voltage requirements when overclocked, so the profiles don't work for everyone. If you have a CPU that needs lots of voltage, the profile VCore will be too low. Not much we can do about that, as it would screw things for the better samples out there."
so its my chip that is bad ? but didn't asus make the settings that way it would work with the majority of the chips ? or dose it just work with a small percentage of the chips ?
Edited by orndorf77 - 4/10/14 at 4:18pm
    
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post #8 of 13
I wouldn't say "bad". I mean it works fine, right? It just needs more voltage than the ones the ASUS guys wrote the profiles for. I don't know the range that they wrote for, but I'm sure they tried to include the most they could, without wrecking their algorithm.
Edited by drobertbaker - 4/10/14 at 4:35pm
post #9 of 13
Thread Starter 
Quote:
Originally Posted by drobertbaker View Post

I wouldn't say "bad". I mean it works fine, right? It just needs more voltage than the ones the ASUS guys wrote the profiles for. I don't know the range that they wrote for, but I'm sure they tried to include the most they could, without wrecking their algorithm.
yes my chip works fine but I have it at stock clock . say if I did have a chip that was at the lower end of the i7 4770k range what would be the max ghz I can overclock it to manually ?
    
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post #10 of 13
That depends on the quality of your cooling solution. My estimates:

Stock Intel fan: 3.9-4.0
Good air cooling: 4.3-4.5
Extreme cooling: 4.6-4.8
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