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Trying to squeeze a little more life out of my I7 3770K (OC Help)

post #1 of 16
Thread Starter 
Recently got back into PC gaming for Fallout 4 and trying to avoid a complete overhaul.

Thanks to the new GTX 1080's dropping I picked up a pair of GTX 980's for a song and relegate my GTX 670 to Physx.

To make this happen I picked up a ASUS p8z77 ws to replace Gigabyte Z77x-UD5H because it can support 3 cards a PCIE 3.0 w/ multple cards..

The problem I'm having is I can't get my ASUS p8z77-WS above 4.5ghz OC without instability or complete failure to load windows, and I had my Gigabyte Z77x-UD5H running at 5ghz for every completely stable.

I've tweaked up and down the core voltage (sitting at 1.25 right now) and CPU PPL down to 1.65 and finished Prime9 will run for hours without error, but once I raise the multiplier to 4.6 it's a potato.

Tweaking suggestions welcome.
post #2 of 16
not enough vcore. lol
post #3 of 16
Thread Starter 
Tweaked it higher slowly but didn't seem to stabilize, went to 1.4 and could not seem to get a stable 4.6ghz
Edited by Thirdstorm - 6/17/16 at 9:28pm
post #4 of 16
Do you have a good quality PSU with enough power?? Considering you have 3 gfx cards in there it could also be the PSU that is holding you back.
post #5 of 16
Thread Starter 
Not a bad thought, but I think I should be good.
Using a 1000W corsair that's been rock solid, wouldn't I more likely see an issue with the GPU's if it was power?
post #6 of 16
Vcore of 1.25 for 5 GHZ is very low if thats what you were running before. Golden chip if that's what you were running. What RAM are you using at what timings? Tried setting it to stock (not XMP) and seeing if that helps?
post #7 of 16
1.25 volts for 5Ghz seems way out of the ordinary to me. I sit at 1.23v for 4.5 Ghz and theres no way were getting to 5Ghz on another .02 volts.

Most likely your old motherboard didn't output the correct voltage from what the sensors and settings are indicating. I'v seen plenty of people switch from Asrock motherboards to Asus and they had to significantly raise the voltage settings to achieve the same overclock. When in reality, their Asrock bord was putting out way more voltage than it should have. Asus boards in my experience are very tight when it comes to voltage regulation.

Have you checked your Vdroop to calibrate the LLC properly? I know on my Asus z77 board I had to raise it a decent amount then it was a stable .003 volts deviation. On other Asus boards, they were out of the box regulating voltage within .002 volts without any LLC.

You can also go in the bios and check the PSUs output to see how close the voltage tolerances are to spec. If there is allot of fluctuation, you can expect some instability when you really try to push things. Corsair uses a mixed bag of PSU manufacturers on their products, so quality can range from outstanding, to absolute crap.
Edited by Shaded War - 6/17/16 at 11:18pm
post #8 of 16
Quote:
Originally Posted by Thirdstorm View Post

Not a bad thought, but I think I should be good.
Using a 1000W corsair that's been rock solid, wouldn't I more likely see an issue with the GPU's if it was power?
It is certainly not a power issue then.
post #9 of 16
Quote:
Originally Posted by Thirdstorm View Post

Recently got back into PC gaming for Fallout 4 and trying to avoid a complete overhaul.

Thanks to the new GTX 1080's dropping I picked up a pair of GTX 980's for a song and relegate my GTX 670 to Physx.

To make this happen I picked up a ASUS p8z77 ws to replace Gigabyte Z77x-UD5H because it can support 3 cards a PCIE 3.0 w/ multple cards..

The problem I'm having is I can't get my ASUS p8z77-WS above 4.5ghz OC without instability or complete failure to load windows, and I had my Gigabyte Z77x-UD5H running at 5ghz for every completely stable.

I've tweaked up and down the core voltage (sitting at 1.25 right now) and CPU PPL down to 1.65 and finished Prime9 will run for hours without error, but once I raise the multiplier to 4.6 it's a potato.

Tweaking suggestions welcome.


I thought you needed to boost CPU PLL up to like 1.7-1.8?
Desktop!
(14 items)
 
Spare Gaming Rig
(11 items)
 
 
CPUMotherboardGraphicsRAM
i7 7700k @ 5011Mhz @ 1.392v 24/7 Z270 Taichi eVGA GTX 1080 ACX 3.0 G.Skill Flare X 16GB 3200CL14 @ 3466CL14 
Hard DriveHard DriveCoolingMonitor
256GB Samsung 850 Pro 1TB Samsung 850 Evo NZXT Kraken X52 Dell S2417DG 165Hz 1440p G-Sync 
KeyboardPowerCaseMouse
Razer Ornata Chroma Corsair 750 RM Phanteks Evolv ATX Alienware AW958 Elite 
Audio
Razer Kraken 7.1 V2 Mercury 
CPUMotherboardGraphicsRAM
i7 4790k @ 4.6Ghz Asus MAXIMUS VII GENE GTX 980 Ti @ 1400 Mhz 4 x 4GB (16GB) Corsair LPX DDR3 
Hard DriveHard DriveCoolingOS
240GB Seagate 1TB RAID HDD Cosair H240 Windows 10 
MonitorKeyboardPower
Asus P278Q Razer BlackWidow Corsair 650W 
  hide details  
Reply
Desktop!
(14 items)
 
Spare Gaming Rig
(11 items)
 
 
CPUMotherboardGraphicsRAM
i7 7700k @ 5011Mhz @ 1.392v 24/7 Z270 Taichi eVGA GTX 1080 ACX 3.0 G.Skill Flare X 16GB 3200CL14 @ 3466CL14 
Hard DriveHard DriveCoolingMonitor
256GB Samsung 850 Pro 1TB Samsung 850 Evo NZXT Kraken X52 Dell S2417DG 165Hz 1440p G-Sync 
KeyboardPowerCaseMouse
Razer Ornata Chroma Corsair 750 RM Phanteks Evolv ATX Alienware AW958 Elite 
Audio
Razer Kraken 7.1 V2 Mercury 
CPUMotherboardGraphicsRAM
i7 4790k @ 4.6Ghz Asus MAXIMUS VII GENE GTX 980 Ti @ 1400 Mhz 4 x 4GB (16GB) Corsair LPX DDR3 
Hard DriveHard DriveCoolingOS
240GB Seagate 1TB RAID HDD Cosair H240 Windows 10 
MonitorKeyboardPower
Asus P278Q Razer BlackWidow Corsair 650W 
  hide details  
Reply
post #10 of 16
Thread Starter 
Ok..
So tweaked offset to 0.25 and was able to get to 4.7ghz and stable, and it reported to be pulling 1.36v - 1.376v

To test Vdroop I set voltage to 1.375 and under load it's pulling 1.376v - 1.384v

Power supply voltages all read +0.01 to +0.2 for the different outputs (but stable not fluctuating)
Edited by Thirdstorm - 6/17/16 at 11:50pm
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