Can't boot into BIOS and BSOD

N

ninjabubbles3

Active Member
So today I tried OCing for the first time, didn't go so well.

I first increased my multiplier to 40, not changing anything.

Now I get BSOD straight after going into Windows, and can't access my BIOS. The gigabyte screen comes up, but then I just get a black screen with a mouse, which I can't move.

What can I do?
 
Unplug PC from wall
Remove CMOS battery
Reattach both
Boot to default BIOS settings.
 
You clearly don't know how to overclock. You can't just jump on a higher multiplier. You need to gradually bump it up (normally until you get a BSOD on Windows boot; bump the multiplier up, save, boot, reboot, bump up multiplier, save, boot, reboot, etc, etc.). Once you're in Windows, you run Prime95 to load the CPU for several hours (while monitoring temps). If a worker crashes in prime95 or you get a BSOD, you bump the either bump the voltage up very minutely, or you drop the multiplier down a click or two. Repeat the Prime95 and temp testing until no issues are seen for several hours.
 
voyagerfan99 said:
You clearly don't know how to overclock. You can't just jump on a higher multiplier. You need to gradually bump it up (normally until you get a BSOD on Windows boot; bump the multiplier up, save, boot, reboot, bump up multiplier, save, boot, reboot, etc, etc.). Once you're in Windows, you run Prime95 to load the CPU for several hours (while monitoring temps). If a worker crashes in prime95 or you get a BSOD, you bump the either bump the voltage up very minutely, or you drop the multiplier down a click or two. Repeat the Prime95 and temp testing until no issues are seen for several hours.
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Righto

I'm trying out stock at 32 with voltage 1.2 temps maxing at 51 under Prime95
 
ninjabubbles3 said:
Why did this happen, and how can i prevent it in the future?
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1) Running the processor outside of its capabilities
2) Don't run the processor outside of its capabilities

Usually you'd need at least a slight voltage bump for a large increase like that. You can't really just expect whatever random number to work, otherwise we'd easily just use a 172371 GHz clock rate.

Per above you'd want to do it in steps to see where it starts becoming unstable.
 
Okedokey said:
ps, beers, its best to leave the cable attached for the earth when clearing the cmos.
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P.S., Oke, it's best to not have electrical current connected to a computer you are servicing.

You should be grounded using a grounding strap when you are working on an open computer.
 
beers said:
1) Running the processor outside of its capabilities
2) Don't run the processor outside of its capabilities
Click to expand...
^ This.

I wouldn't have thought your CPU is really suitable for overclocking anyway - or certainly not trying to overclock it as high as you did.

The others are right, you can't just jump in with a multiplier of 40x. You need to steadily raise the voltage and the multiplier whilst keeping an eye on the temperature of the CPU to ensure it is reasonable. The reason you got BSOD'ed was because the stock voltage of your CPU cannot support a multiplier of 40x, you would need to raise it a bit if you can even overclock your CPU that far.

Once you've found a stable overclock where the voltage and multiplier work in harmony and the temperatures are OK, you can begin to fiddle with the voltage a bit and bring it down a teeny bit to help lower your temperatures (because it's the increased voltage that causes the increased temperatures), but there will come a point where you need a certain voltage to support the multiplier that you want to use, otherwise you'll get BSOD'ed and your system will be unstable.

I'm not sure how well your Pentium overclocks to be perfectly honest. I don't think it's an unlocked CPU so don't expect amazing overclocks from it, if anything at all really. It looks like you have a good board and a decent cooler though so if you ever upgraded to something like a 4690K you'd have a good setup for overclocking.
 
spirit said:
^ This.

I wouldn't have thought your CPU is really suitable for overclocking anyway - or certainly not trying to overclock it as high as you did.

The others are right, you can't just jump in with a multiplier of 40x. You need to steadily raise the voltage and the multiplier whilst keeping an eye on the temperature of the CPU to ensure it is reasonable. The reason you got BSOD'ed was because the stock voltage of your CPU cannot support a multiplier of 40x, you would need to raise it a bit if you can even overclock your CPU that far.

Once you've found a stable overclock where the voltage and multiplier work in harmony and the temperatures are OK, you can begin to fiddle with the voltage a bit and bring it down a teeny bit to help lower your temperatures (because it's the increased voltage that causes the increased temperatures), but there will come a point where you need a certain voltage to support the multiplier that you want to use, otherwise you'll get BSOD'ed and your system will be unstable.

I'm not sure how well your Pentium overclocks to be perfectly honest. I don't think it's an unlocked CPU so don't expect amazing overclocks from it, if anything at all really. It looks like you have a good board and a decent cooler though so if you ever upgraded to something like a 4690K you'd have a good setup for overclocking.
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It is unlocked, that's why I bought it. Most people have gotten this to around 4.6ish using an air cooler. The Tech Report got 4.8 at 1.375 vcore.
 
ninjabubbles3 said:
It is unlocked, that's why I bought it. Most people have gotten this to around 4.6ish using an air cooler. The Tech Report got 4.8 at 1.375 vcore.
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OK good to know. But bear in mind that everybody's configurations are different and each chip is different so you can't always guarantee that you'll get what others have achieved. Remember too that some motherboards are better for overclocking than others. Sometimes you get good examples of the same CPU for OC'ing and sometimes bad ones. People have gotten their i5 2500Ks to 4.8GHz and higher on air but mine is unstable at anything above 4.3GHz on my system (probably because of my cooling) - just the way it goes!

But regardless, you need to gradually increase the multiplier and voltage until you find a combination of the two that work well whilst retaining relatively cool temperatures. :good:
 
spirit said:
OK good to know. But bear in mind that everybody's configurations are different and each chip is different so you can't always guarantee that you'll get what others have achieved. Remember too that some motherboards are better for overclocking than others. Sometimes you get good examples of the same CPU for OC'ing and sometimes bad ones. People have gotten their i5 2500Ks to 4.8GHz and higher on air but mine is unstable at anything above 4.3GHz on my system (probably because of my cooling) - just the way it goes!

But regardless, you need to gradually increase the multiplier and voltage until you find a combination of the two that work well whilst retaining relatively cool temperatures. :good:
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Alright then! Thanks!

I found this webpage
http://hardforum.com/showthread.php?t=1826057&page=2

I've heard that with Has well, you want to change the uncore or something? And should I mess with VRIN or Ring? So I've just been doing the voltage and multiplier
 
I've never overclocked a Haswell system and it's been 3 years since I overclocked my 2500K so I'm a little bit rusty now. ;)

I don't remember needing to play with those settings when I overclocked my 2500K and 'Uncore' just looks like the multiplier to me going by some of the settings people are posting, but I could be wrong.

By all means have a go and see if those settings work for you (they might!) but if they don't just reset the BIOS back to defaults.
 
Okedokey said:
ps, beers, its best to leave the cable attached for the earth when clearing the cmos.
Click to expand...

I've seen CMOS not clear on a few systems since it was powered from mains.

I've also never heard that in my entire career of computing :(
 
beers said:
I've seen CMOS not clear on a few systems since it was powered from mains.

I've also never heard that in my entire career of computing :(
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He ssems to think that all outlets are controlled by a wall switch. That may be true in Australia but not here in America in new homes. You might find one or two outlets in a older house that is controlled by a switch but not really anymore.
 
johnb35 said:
He ssems to think that all outlets are controlled by a wall switch. That may be true in Australia but not here in America in new homes. You might find one or two outlets in a older house that is controlled by a switch but not really anymore.
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Yes this is the confusion. All power outlets have switches in Australia. Either way, you need to have the chassis earthed otherwise you're not really grounding the cmos properly.
 
You can't just stick the multiplier straight up without any adjustment to voltage. If you know your systems capabilities from prev overclock then yes you can go from stock up to the required speed and voltages. Remember Every chip is different, the chip should do much higher. Did you set voltage (vcore) to manual and increase from stock?

I also was confused about the switch sockets. Also here in the uk every socket has a switch. Seems strange, unplug/re plug rather than switch on or off. Must be an American thing lol.
 
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Yeah we have switches on wall sockets in the UK which is why I also tend to leave the power cable plugged in when doing work on a PC for ground/earth.
 
tylerjrb said:
I also was confused about the switch sockets. Also here in the uk every socket has a switch. Seems strange, unplug/re plug rather than switch on or off. Must be an American thing lol.
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Generally we have switches that control either overhead lights, or one outlet on a wall box to plug in a lamp, while the rest don't have any switch.

In the UK, are your switches actually on the outlet itself, or someplace else on the wall?
 
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