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Re: Seeking Gigabyte P55A-UD4P overclock guide

post #1 of 9
Thread Starter 
Hi folks,

I recently ordered a system from ncix which I selected the gigabyte p55a-ud4p ,i7-860 and g.skill eco ddr-1600 ram cl7-8-7-24 1.35v.

I have looked for overclocking guides for this motherboard but am having trouble finding one.
I've heard ideas ranging from upping the bclock, qpi, vtt and uncore voltages. Others recommend just playing around with the bclock, vcore and memory speed/timings.

There are quite a few options in the Bios so I'm needing assistance from anyone with experience with this board.
I will be purchasing a coolermaster hyper 212+ to assist with cooling down the overclocks.

thanks,
Marc
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Marc's Computer
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i7-860 @ 3.8 ghz stable (with ht on)  Gigabyte P55-UD4P GTX 970 FTW G.Skill Sniper 8gb cl9-9-9-24 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 Evo - 250 gb  WD Caviar Black 1 TB 2: LG Dvd Burner / LG Blu-ray Burner CM Hyper 212 Evo 
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Windows 10 / 64-bit Dell U2515H Microsoft -PS2 Antec Earthwatts 650 
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post #2 of 9
I have the UD3P, exactly the same thing except the x8/x8 PCIe.
There are tons of option in the BIOS, but there are only a handful of options that you need to change.
http://www.tomshardware.com/forum/25...clocking-guide
First, this is a good guide to start you up with, great info and basic understadning of the voltage limits on each settings.
But for the Giga boards,
go to MIT -> Advanced Frequency Settings ->
CPU Clock Ratio should see 20 - you can manually set it to 21, it loves odd number in some cases and you can get higher with 21

In Advanced CPU Core Features - disable - Turbo, C1E and EIST.

come back out and in QPI Clock Ratio - set it to the lowest - X32
Base Clock (BCLK) Control set it to 180 to start with and you can graudally increase to 191 to get pass 4Ghz.
Set the PCIe to 100
Extreme Memory Profile XMP - Disable
CIA 2 Disable
Others just leave it in stock setting and come back out and go into

Advanced Memory Settings - Be sure the Extreme Memeory Profile XMP is disabled - manual set your System Memory Multiplier to match the speed of your ram, it will display the actual speed after the multiplier is applied so it's easy, for your case just make sure it doesn't go pass 1600 too much. Performance Enhance shoudl be set at stadnard or you will crash in higher clock. Here you can manual set your timing.

Lastly, come back out and go into
Advanced Voltage Settings
Load-Line Calibration should be enable
CPU core voltage you can start with 1.3v and work from there, just don't pass 1.4v
QPI/Vtt voltage - you can start with 1.17v, don't pass 1.21v
CPU PLL - you can try 1.88 and lower if stable, don't pass 1.9v
DRAM Voltage - you can keep at 1.5v or go as high as 1.6v if not stable, but don't pass 1.65, but I won't pass 1.6v personally.
This shoudl get you start, just feel some tests and adjust the voltages along the way.
Cheers.
Edited by andynolife - 5/1/10 at 12:51pm
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post #3 of 9
Nice write up andynolife.
I own the UD4P and I found it much easier to hit 4.0 with 200x20. Max VTT @ 1.21 is BS. Sure Intel suggests its the max, but just as an example its impossible to get 4.0 stable with 8GB of memory with anything lower than 1.27. As long as you stay below 1.31 VTT you're fine imo. Also you'll want a mem multiplier of 8 with a 200 or 191 BCLK.
     
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post #4 of 9
Thread Starter 
Thanks for the detailed explanation Andy, including where the Bios functions are located.

Questions:
So going to 3.78ghz [180x21] in one reboot, from stock 2.8ghz. is doable?

Since this is the i7-860, should I disable hyper-threading as well?

What does setting the PCIe to 100 do?

When I set the memory freq multiplier/timings, do I set it to 1600 and default 7-8-7-24 in my case?

Dram voltage: my ram is the g.skill @ default 1.35 volts. Should I bump it up to 1.5 like you suggested or leave it, initially?

If post or booting to Windows 7 fails, or system tests to be unstable, is that when I start playing around with the voltage settings and begin bumping up
all the Advanced Voltage Settings - Do I bump 1 up at at time or all 4.

thanks again for your guidance,
Marc
Marc's Computer
(16 items)
 
  
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i7-860 @ 3.8 ghz stable (with ht on)  Gigabyte P55-UD4P GTX 970 FTW G.Skill Sniper 8gb cl9-9-9-24 
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Samsung 840 Evo - 250 gb  WD Caviar Black 1 TB 2: LG Dvd Burner / LG Blu-ray Burner CM Hyper 212 Evo 
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Marc's Computer
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CPUMotherboardGraphicsRAM
i7-860 @ 3.8 ghz stable (with ht on)  Gigabyte P55-UD4P GTX 970 FTW G.Skill Sniper 8gb cl9-9-9-24 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 Evo - 250 gb  WD Caviar Black 1 TB 2: LG Dvd Burner / LG Blu-ray Burner CM Hyper 212 Evo 
OSMonitorKeyboardPower
Windows 10 / 64-bit Dell U2515H Microsoft -PS2 Antec Earthwatts 650 
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post #5 of 9
Quote:
Originally Posted by Marc999 View Post
Thanks for the detailed explanation Andy, including where the Bios functions are located.

Questions:
So going to 3.78ghz [180x21] in one reboot, from stock 2.8ghz. is doable?

Since this is the i7-860, should I disable hyper-threading as well?

What does setting the PCIe to 100 do?

When I set the memory freq multiplier/timings, do I set it to 1600 and default 7-8-7-24 in my case?

Dram voltage: my ram is the g.skill @ default 1.35 volts. Should I bump it up to 1.5 like you suggested or leave it, initially?

If post or booting to Windows 7 fails, or system tests to be unstable, is that when I start playing around with the voltage settings and begin bumping up
all the Advanced Voltage Settings - Do I bump 1 up at at time or all 4.

thanks again for your guidance,
Marc
NP. and for 8Gb, Jocelyn84 is right, there's no way to stay in spec in that case. Great info.
1. It's doable for a 3.8Ghz, I did that for my frd, I had 1.29v/1.17vtt on a 750, so that should at the very least POST for you.
2. You should leave it on, turn it off if you can't get it stable after adjusting the voltage or gets too hot.
3. When you pushing the BLCK up, you are stressing the whole system. To limit the PCIe speed at 100 will get you stable.
4. That depends on what BLCK you are running, the memory speed is determine by the memory multiplier x BLCK, you with a particular BLCK clock you have to set the multiplier within a resonable range for your ram. For the timing part, because imo, the BIOS will likely not have the current timing after oc, so you better set it maunally. Without that, my timing is a random 10-11-XX-XX in CPUID.
5. For your econ, yes keep it at 1.35v, pump it up a bit if you pass 1600.
6. I always pump 1 up at a time. This way, you can sort out which voltage needs more or is having problem. If you pump 4 up, you have to sort out 1 by 1 later to lower them. But if you are fine with not lowering them within spec, sure. But generally, you shoudl worry about vCore and Vtt first.
Edited by andynolife - 5/1/10 at 1:58pm
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post #6 of 9
Thread Starter 
Thanks again, I've never overclocked a cpu before but willing to give it a shot. I started reading through that guide you linked from tom's hardware.

After I initially set the 4 voltages to what you recommended to achieve that 3.78ghz, how do I know which voltage needs coaxing if the boot fails or unstable system? Do I start with vcore or vtt first and if system is still unstable, keep pumping 1 at a time, within speck? If neither of those voltages work, then pump Pll or Dram voltage?
Am I on the right mind-set with how to approach it?

regards,
Marc
Marc's Computer
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7-860 @ 3.8 ghz stable (with ht on)  Gigabyte P55-UD4P GTX 970 FTW G.Skill Sniper 8gb cl9-9-9-24 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 Evo - 250 gb  WD Caviar Black 1 TB 2: LG Dvd Burner / LG Blu-ray Burner CM Hyper 212 Evo 
OSMonitorKeyboardPower
Windows 10 / 64-bit Dell U2515H Microsoft -PS2 Antec Earthwatts 650 
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Marc's Computer
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CPUMotherboardGraphicsRAM
i7-860 @ 3.8 ghz stable (with ht on)  Gigabyte P55-UD4P GTX 970 FTW G.Skill Sniper 8gb cl9-9-9-24 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 Evo - 250 gb  WD Caviar Black 1 TB 2: LG Dvd Burner / LG Blu-ray Burner CM Hyper 212 Evo 
OSMonitorKeyboardPower
Windows 10 / 64-bit Dell U2515H Microsoft -PS2 Antec Earthwatts 650 
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post #7 of 9
It depends on the situation. If it does not POSt at all. Try to crank up both vCore/Vtt 1 or 2. If it boots and fail in stress test, pump the vCore up by 1, or Vtt up by 1. By the memory has error in testing pump the Vtt and vRam by 1. PLL is more of a support on the side, like either work then puump.
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post #8 of 9
I've got that exact board, took my i7 860 to 4.0GHZ without complaining.
Boxxy Minaj
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post #9 of 9
Thread Starter 
Haha, would you like to see some thread necromancy in action?

Well here I am after almost 3.5 years later.
I'm still running that i7-860 from the original post.

I've made changes to the ram and graphics card (sapphire 7850 oc) since then.

I think I gave up overclocking way back then, but was bored this past 3 days so I tried it out, with some reasonably thorough testing. I dug up this old thread and went to work.

Here's what I have:

i7-860 (default 2.8 ghz)
CM Hyper 212 Evo

3.8 ghz
Blck = 181
CPU Multiplier = 21
System Memory Multiplier = 8
Hyper-threading ON
Power Saving features / stepping ON
Turbo OFF
Normal voltage + Dynamic VCore = 1.28125 (1.2250 + 0.05625)
QPI/VTT = 1.25 (could maybe lower it, not sure)
DRAM volt = 1.5 (default)

So, my ram is underclocked by a bit @ 1448, with cl 9-9-9-24
I haven't bothered tightening the ram yet, or if I would even notice the difference.
Temperatures are 77 Celsius during IBT testing (Maximum setting: 3 loops).
Temperatures are 64-65 Celsius during Battlefield 3, or Battlefield 4-beta.

If I try for 3.9 ghz or even 4 ghz, it's just too hot for my comfort level, during OCCT, IBT testing, Prime95. It got up to 85 degrees during OCCT-Large data set, so I halted it. That might be normal with hyper-threading enabled and the extra Vcore required.

So I'm fine with where it's at and it should extend the life of this computer for another year or two I think. When 8-core Intel processors become the norm and affordable to the masses, let me know and I'll upgrade wink.gif
Edited by Marc999 - 10/7/13 at 4:37pm
Marc's Computer
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7-860 @ 3.8 ghz stable (with ht on)  Gigabyte P55-UD4P GTX 970 FTW G.Skill Sniper 8gb cl9-9-9-24 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 Evo - 250 gb  WD Caviar Black 1 TB 2: LG Dvd Burner / LG Blu-ray Burner CM Hyper 212 Evo 
OSMonitorKeyboardPower
Windows 10 / 64-bit Dell U2515H Microsoft -PS2 Antec Earthwatts 650 
CaseMouseMouse PadAudio
Coolermaster CM690 2 Advanced Coolermaster Storm Recon Steelseries Sony Professional MDR-7506 Headphones  
  hide details  
Reply
Marc's Computer
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7-860 @ 3.8 ghz stable (with ht on)  Gigabyte P55-UD4P GTX 970 FTW G.Skill Sniper 8gb cl9-9-9-24 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 Evo - 250 gb  WD Caviar Black 1 TB 2: LG Dvd Burner / LG Blu-ray Burner CM Hyper 212 Evo 
OSMonitorKeyboardPower
Windows 10 / 64-bit Dell U2515H Microsoft -PS2 Antec Earthwatts 650 
CaseMouseMouse PadAudio
Coolermaster CM690 2 Advanced Coolermaster Storm Recon Steelseries Sony Professional MDR-7506 Headphones  
  hide details  
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