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Help me with 5ghz

post #1 of 7
Thread Starter 
I'd like some help with 5ghz specifically on the Asus P8Z68-V PRO.

I can get 5hz stable (only done limited stability testing - 30min Prime95) if I manually set the CPU voltage to 1.450v in BIOS. CPU-Z and ASUS utilities will show the actaul cpu voltage at 1.480v (due to LLC?). The H100 is doing it's job, Temps were good under load <= 68C.

Now 1.48v is a little high for my tastes, but I figured I could live with that if I could use CPU Voltage Offsets, so it wasnt pumping 1.480v through the CPU at all times. Unfortunately my attempts to use Voltage Offsets have been a little scary. Apparently on the automatic settings @ 5ghz, it will spike WAY over 1.5v (I saw 1.688v for a second). I have a feeling the answer is in one of the following settings:



But these seem to have Offset values too. Any advice?
Spit in God's Eye
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Spit in God's Eye
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post #2 of 7
The Offset voltage needs to be set manually. So an Offset voltage of "Auto" should always be avoided.

Also, I recommend using an LLC of Ultra High instead of Extreme so that you don't get vRise like that.
It's a computer!
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It's a computer!
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post #3 of 7
to get offset working you need to go into realtemp while on load and then press the timer and it will you your VID. Then you need to either minus or plus a amount as your offset.

example: VID 1.35 and you want your voltage to be 1.40 then your offset would be plus 0.05.
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post #4 of 7
You might not have the greatest binned chip to reach 5GHz at under 1.48 volts. If I were you, I'd just stick to the standard method of vcore control and use the "high" setting for LLC. That shouldn't boost it up too high under load. If you are not benchmarking, its advisable to just lower the clocks a few hundred megahertz to keep the voltage/temps within check...unless you want the e-peen of running your rig at 5GHz 24/7. I did that for a while (5.2GHz at 1.49v) but its kinda pointless with the heat it pumps out and the chip can run any game/application very well at 4.8GHz. Its just a matter of compromise.
post #5 of 7
Thread Starter 
Alright thanks for the advice guys. +Rep given.

Farmer Boe- yeah I know there isnt much difference between a few hundred mhz. It's just when I built this I was hoping for 5ghz. If I have to, I'll settle for a little less.
Spit in God's Eye
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A-Data SP600 256gb SSD (C:) Samsung 840 EVO 1TB SSD (D:) Seagate 2TB Hybrid Drive (E:) LITE-ON 24x DVDRW 
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Corsair H110 Win 10 x64 HP 2511x ( 25" 1080p ) AZIO L70 
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Spit in God's Eye
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CPUMotherboardGraphicsRAM
i7-5960x @ 4.26 ghz core / 3.53 ghz uncore - 1.... AsRock X99 Extreme3 EVGA GTX980 Ti 16gb (4x4gb) Crucial DDR4 2133 CL15  
Hard DriveHard DriveHard DriveOptical Drive
A-Data SP600 256gb SSD (C:) Samsung 840 EVO 1TB SSD (D:) Seagate 2TB Hybrid Drive (E:) LITE-ON 24x DVDRW 
CoolingOSMonitorKeyboard
Corsair H110 Win 10 x64 HP 2511x ( 25" 1080p ) AZIO L70 
PowerCaseMouseAudio
Corsair TX750 Antec 300 (Modded) Logitech M100 Onboard 
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post #6 of 7
Keep in mind the amps being drawn at 1.48V under load is way more than when sitting at 1.48V idle.

Unfortunately every chip and situation is different. It's up to you to decide if you're really want to risk it.
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Scorpion
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post #7 of 7
Hurry up and get that puppy workin so I can have your i7 hehehehe!
Sandy
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Sandy
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