UD5 Overclocking

What cooling are you using Robert?
Small FFTs Prime on i7s isn't terribly informative- blend is better. I personally find LinX shows up errors quickly, as does OCCT (especially the Linpack option)
:)
 
I'm using the Noctua.

Just ran Prime (large FFTs) and it just locked...that was with 1.31 vcore at 3.6ghz.
 
What system have you moved from Robert? The X58 chipset has features in common with 775 and AM2+.

Uncore frequency needs to be set to your memory frequency x2, or (memory x2)+1 depending on who you ask. Mine is at 3200 for 1600mhz ram. Any lower and it will crash, any higher than 4000 and stability will become very hard to find.

As standard, setting memory to the lowest multiplier (x6) helps ensure that this isn't the unstable part while you focus on the cpu. Loosening the timings may help but is probably not needed, cas8 to cas9 say. Ram voltage set to 1.66V regardless.

Beyond that everything ties to bsck. Moving from 133 to 180 was quite a jump, I'm not surprised it wasn't stable. Moving in steps of 10 (200mhz ish), and raising vcore/qpi voltage as needed is a good compromise. Note that increasing either will increase temperatures, and stability will suffer as it runs hotter. It may well be "fine" at 90 degrees, but it'll need a hell of a lot more voltage for stability than it would do at 60. Hence more voltage isn't always better here, keep both of these as low as you possibly can before moving up a notch.

Turbo mode is a kind of enforced energy saving mode. If on, you get x21 multiplier but it'll throttle back to x20 under load if the bios lets it. With it off you get at most x20 available, hence me running at 200x20.

Load line calibration was introduced with P45 as a result of the enthusiast community bleating about vdroop. Vdroop is meant to happen, expected to happen, and specified to happen by Intel. I can rant about this at length, however I shall leave it with the comment that it provides zero benefit at the cost of motherboard stress and cpu voltage spikes.

You did ask for a template. Vcore 1.25V, qpi 1.3V, vdimm 1.66V, ucore 3200, qpi frequency the lowest available. 200 bsck, 1600mhz cas8 ram. Stable under anything I throw at it except higher ambients at which point the board gives up without a fan pointed at it. Processor hits 60 degrees.

Cheers
 
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3.6Ghz settings straight from my bios screen(s) Rob
CPU Clock Ratio 20x
QPI Link Speed Auto
Base Clock (BCLK) Control Enabled
BCLK Frequency (Mhz) 180
Performance Enhance Standard
System Memory Multiplier (SPD) Auto
DRAM Timing Selectable (SPD) Manual

Channel A
CAS Latency Time 9
tRCD 9
tRP 9
tRAS 28
Command Rate(CMD) 2
Channel B
as above
Channel C
as above
Load-Line Calibration Enabled
CPU Vcore 1.29375V
QPI/Vtt Voltage Auto
IOH Core Auto
DRAM Voltage 1.66
 
The RAM is running at 1440 Mhz instead of rated 1600 Mhz. It's stable ...only a week old out of the box
If you can get the RAM running quicker and a STABLE OC 3.8 let me know pal ...thanks
 
Essexraptor you've got all your bios settings wrong mate! if you want a stable oc you will have to change all your current settings.
 
Assuming Loaded optimised defaults:

Enable XMP to get the RAM timings and Volts set right, then in the BIOS change Uncore/RAM multi to 8/16 (or 6/13). QPI multi to x36.

Increase BCLK 10 at a time, and use Everest to monitor voltages as you do a quick sensor test in Real Temp.

My CPU is quite happy running at 1.2v at 3.5 (175) and i'm happy to leave it there as it stays comfortably cool.

Didn't fiddle with QPI/VTT
 
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Hi,

I followed HiCookies guide for the EX58-Extreme on my UD5 and got to 4.2Ghz with Turbo enabled and was stable.

Guide: http://images.tweaktown.com/imagebank/Core i7 920 oc 4G 2008.12.12_(ENG).pdf


Not sure what temps everyone else is seeing, but I got CPU temps on the 55 degree mark, NB was hitting 49 degrees.. until I moved a 90mm fan 45degrees to the motherboard, resting against the heatsink and the PCI slot, NB now at 37 degrees at 4.2Gbhz.

I've got AS5 to replace the stock compound, just curious what temps everyone else is seeing....
 
bluemax said:
Essexraptor you've got all your bios settings wrong mate! if you want a stable oc you will have to change all your current settings.
Click to expand...

Bluemax, Surge thanks for telling me it's all wrong!!! the techies at OcUK are going to love ya!!!..LOL

How about some HARD data then?.... part of the picture is fine but no use at all... all our systems seem to be similiar... so how about a full listing of settings from your bios to help Robert, myself and others out?
 
ok sure thing!
when i get home tonight ill copy my settings and post! but bare in mind the settings i post are for my set up and will need slightly altering to suit yours ;-)

memory for 1 and voltages.
 
bluemax said:
ok sure thing!
when i get home tonight ill copy my settings and post! but bare in mind the settings i post are for my set up and will need slightly altering to suit yours ;-)

memory for 1 and voltages.
Click to expand...


I will do the same:)
 
bluemax said:
2nd'ly change your performance enhance to turbo.
Click to expand...

No. Leave performance enhance to standard.

Robert, check out these pics below, to give you an idea of what settings should be roughly. Not every chip is the same, so things will need tweaking. These are photos of my BIOS setting on the same mobo.









 
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