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The Gigabyte Z87/Haswell Overclocking(OC) Guide - Page 320

post #3191 of 3251
I have encountered a weird issue. I tried 1.300V, 1.250V and 1.200V to see if they would be stable. They are around the same voltage as the auto setting in the BIOS uses. The conclusion is that whenever I try to overclock with a manual voltage it boots up, runs for about 30 seconds and the freezes until I have to restart the machine. This does not occur when the voltage is set to auto even though the manual voltages I set is the same as the ones the auto setting is using.

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post #3192 of 3251
Quote:
Originally Posted by Tepperotta View Post

I have encountered a weird issue. I tried 1.300V, 1.250V and 1.200V to see if they would be stable. They are around the same voltage as the auto setting in the BIOS uses. The conclusion is that whenever I try to overclock with a manual voltage it boots up, runs for about 30 seconds and the freezes until I have to restart the machine. This does not occur when the voltage is set to auto even though the manual voltages I set is the same as the ones the auto setting is using.

You probably aplied LLC. It can suppress aswell as ad voltage depending on the lvl.
I like to use vid with offset in conjunction with EIST and C-states, so when im browsing it throtles nicely down as does the voltage to save energy and thus heat and noice aswell.
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Main Gaming PC
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CPUMotherboardGraphicsRAM
4690K Gigabyte Z87 Sniper M5 MSI 290 Gaming 4G Vengeance 2x4GB 1866 
Hard DriveCoolingOSKeyboard
Crucial MX100 256GB Corsair H100i Windows 7 Ultimate 64 Saitek Cyborg V.7 
PowerCaseMouseMouse Pad
Corsair HX750 Corsair Air 240 A4-tech X-750F Steelseries 4HD 
Audio
Sennheiser PC 320 G4ME 
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post #3193 of 3251
Quote:
Originally Posted by jbkappirossi View Post

You probably aplied LLC. It can suppress aswell as ad voltage depending on the lvl.
I like to use vid with offset in conjunction with EIST and C-states, so when im browsing it throtles nicely down as does the voltage to save energy and thus heat and noice aswell.

How do you go about finding out what the offset should be?
post #3194 of 3251
Quote:
Originally Posted by Tepperotta View Post

How do you go about finding out what the offset should be?
It would be good for you to read one of the Haswell overclocking guides. smile.gif

Myself, I manually set Vcore and use Extreme LLC to prevent droop keep the Vccin up. Also, depending on individual cpu's/boards and how high you clock you may need to change Vccin and/or Vring (uncore) voltage.
Example:
on my Z87X-UD5H/4770K for a 48x overclock, I need 1.31 vcore setpoint, Vring of 1.15, & Vccin of 1.9. LLC is set to Extreme.
Under stress the vcore will rise to 1.32.

Every cpu is different,(mine is pretty good) however, and it's best to start out low and work up.
Edited by mandrix - 5/4/15 at 4:05am
post #3195 of 3251
Quote:
Originally Posted by mandrix View Post

Myself, I manually set Vcore and use Extreme LLC to prevent droop.

You know that on Haswell/DC the LLC only affects the CPU Input Voltage (VCCin), not the Vcore, right?
post #3196 of 3251
Quote:
Originally Posted by Forceman View Post

You know that on Haswell/DC the LLC only affects the CPU Input Voltage (VCCin), not the Vcore, right?

Yes. I misspoke. Brain fart.
Thanks!
post #3197 of 3251
Is it actually worth updating BIOS to latest on UD4h? Looks like I have the stock/release BIOS and there are several newer versions, including one that "improves overclocking capability" and also the latest BIOS which is a Beta.
post #3198 of 3251
Quote:
Originally Posted by Faster_is_better View Post

Is it actually worth updating BIOS to latest on UD4h? Looks like I have the stock/release BIOS and there are several newer versions, including one that "improves overclocking capability" and also the latest BIOS which is a Beta.

I would update to the bios right before the beta one . It will change settings in the bios to different ones and I have been running my 4790k at 4.7 1.2v for months with that bios let me see oh yea its bios F9
post #3199 of 3251
Quote:
Originally Posted by blackhole2013 View Post

Quote:
Originally Posted by Faster_is_better View Post

Is it actually worth updating BIOS to latest on UD4h? Looks like I have the stock/release BIOS and there are several newer versions, including one that "improves overclocking capability" and also the latest BIOS which is a Beta.

I would update to the bios right before the beta one . It will change settings in the bios to different ones and I have been running my 4790k at 4.7 1.2v for months with that bios let me see oh yea its bios F9

Do you have before/after overclocks? Did it increase stability between them? I'll probably update it anyhow, even though updating BIOS is probably one of my biggest fears after bricking a board once lol.
post #3200 of 3251
So I have a random question for any udh owners. I have the z87 ud4h. Is there any way to run off the red LED on the motherboard at least once it's booted up. Now that I'm done tweaking I don't really need those boot up codes displayed and I don't like the constant red glow of that LED. I guess I can always put some electrical tape over it but just curious if it can be turned off?
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