Adjusting Ring Voltage on Asrock Fatal1ty Z87 Killer MB using UEFI

[Midnitewolf]

I am semi-new to overclocking and I have been reading that Haswell Processors require your to also adjust Ring Voltage as well as the CPU multiplier and Vcore, I am not sure where in the UEFI I need to go to change the Ring Voltage.

Also any general OC tips will help as I can't figure out if I have just gotten a few bad chips or I am doing something wrong.

I am using a i5-4670k on a Asrock Fatal1ty Z78 Killer MB. I am only looking for relatively modest clock of around 4.4 Ghz which according to most of the OC guides I have read, should be achievable even by a below average chip.

First 4670k I managed to only get to like 4.1 GHz stable. At stock clocks, before I even started changing anything the VCore was at 1.211 volts which I though was an issue since everything I read said I should be looking at a starting voltage of only 1.0-1.1 volts. RMAed that one and got a second one even worse than the first.

The Second chip, I couldn't change anything either the voltage or the multiplier without an immediate crash. Again the stock clock voltage was showing at 1.211 volts on CPU-Z before I even entered BIOS or anything. This one even seemed to crash the bios as all I would often get is a black screen when the machine tried to restart so I would have to power off then back on to even get to BIOS. This one was RMAed as well.

Now moving on to my 3rd CPU and I want to figure out if I am perhaps doing something wrong or wondering if perhaps these issue could be related to my power supply (Antec Earthwatts 750w so I should have plenty of power if the power supply is working correctly).

Anyway, any help would be appreciated as my new processor should be here next week.

 

[Y0GI]

I am semi-new to overclocking and I have been reading that Haswell Processors require your to also adjust Ring Voltage as well as the CPU multiplier and Vcore, I am not sure where in the UEFI I need to go to change the Ring Voltage.

Also any general OC tips will help as I can't figure out if I have just gotten a few bad chips or I am doing something wrong.

I am using a i5-4670k on a Asrock Fatal1ty Z78 Killer MB. I am only looking for relatively modest clock of around 4.4 Ghz which according to most of the OC guides I have read, should be achievable even by a below average chip.

First 4670k I managed to only get to like 4.1 GHz stable. At stock clocks, before I even started changing anything the VCore was at 1.211 volts which I though was an issue since everything I read said I should be looking at a starting voltage of only 1.0-1.1 volts. RMAed that one and got a second one even worse than the first.

The Second chip, I couldn't change anything either the voltage or the multiplier without an immediate crash. Again the stock clock voltage was showing at 1.211 volts on CPU-Z before I even entered BIOS or anything. This one even seemed to crash the bios as all I would often get is a black screen when the machine tried to restart so I would have to power off then back on to even get to BIOS. This one was RMAed as well.

Now moving on to my 3rd CPU and I want to figure out if I am perhaps doing something wrong or wondering if perhaps these issue could be related to my power supply (Antec Earthwatts 750w so I should have plenty of power if the power supply is working correctly).

Anyway, any help would be appreciated as my new processor should be here next week.

Different MB makers have different terminology for the same settings. If it is not listed as "Ring Voltage" look for "CPU Cache Voltage" or possibly even "Uncore Voltage", but yes, it helps to set the Ring Bus Voltage at a constant 1.900 -2.000 v. ("Override Mode"). It also helps to DECREASE the Ring Ratio to 35-38.

Here is a guide that I found to be really helpful: http://www.tomshardware.com/forum/id-1722630/intel-god-quick-dirty-guide-4ghz-haswell.html

Good Luck!

EDIT: There is nothing wrong with a stock Vcore of 1.210v. This is the Intel spec. Don't be afraid to raise this up a bit at a time. Try 1.250 first as a starting point for OC'ing. You can be safe at 1.300v. but that is the maximum safe limit.

Yogi

 

[Midnitewolf]

I am semi-new to overclocking and I have been reading that Haswell Processors require your to also adjust Ring Voltage as well as the CPU multiplier and Vcore, I am not sure where in the UEFI I need to go to change the Ring Voltage.

Also any general OC tips will help as I can't figure out if I have just gotten a few bad chips or I am doing something wrong.

I am using a i5-4670k on a Asrock Fatal1ty Z78 Killer MB. I am only looking for relatively modest clock of around 4.4 Ghz which according to most of the OC guides I have read, should be achievable even by a below average chip.

First 4670k I managed to only get to like 4.1 GHz stable. At stock clocks, before I even started changing anything the VCore was at 1.211 volts which I though was an issue since everything I read said I should be looking at a starting voltage of only 1.0-1.1 volts. RMAed that one and got a second one even worse than the first.

The Second chip, I couldn't change anything either the voltage or the multiplier without an immediate crash. Again the stock clock voltage was showing at 1.211 volts on CPU-Z before I even entered BIOS or anything. This one even seemed to crash the bios as all I would often get is a black screen when the machine tried to restart so I would have to power off then back on to even get to BIOS. This one was RMAed as well.

Now moving on to my 3rd CPU and I want to figure out if I am perhaps doing something wrong or wondering if perhaps these issue could be related to my power supply (Antec Earthwatts 750w so I should have plenty of power if the power supply is working correctly).

Anyway, any help would be appreciated as my new processor should be here next week.

Different MB makers have different terminology for the same settings. If it is not listed as "Ring Voltage" look for "CPU Cache Voltage" or possibly even "Uncore Voltage", but yes, it helps to set the Ring Bus Voltage at a constant 1.900 -2.000 v. ("Override Mode"). It also helps to DECREASE the Ring Ratio to 35-38.

Here is a guide that I found to be really helpful: http://www.tomshardware.com/forum/id-1722630/intel-god-quick-dirty-guide-4ghz-haswell.html

Good Luck!

EDIT: There is nothing wrong with a stock Vcore of 1.210v. This is the Intel spec. Don't be afraid to raise this up a bit at a time. Try 1.250 first as a starting point for OC'ing. You can be safe at 1.300v. but that is the maximum safe limit.

Yogi

I know that 1.211 volts is within the safe limits of the Haswell 4670k processor but most of the overclocking guides I am seeing have the stock voltage at around 1.0 -1.1 volts with 1.2 volts and above mostly reserved for OCs of 4.3-4.5 GHz. Having a stock voltage usage of 1.211 volts really doesn't seem to leave a bunch of room to increase voltage in order to get a higher clock and still stay under the 1.25 volts most people feel comfortable at. I guess that is one of the reasons I question the 1.211 stock voltage in regards to the quality of the chip or lack there of.