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post #531 of 560
can anyone give me bios setting for a giga p55a ud3 to get me started just got a 875k cheap so wana see what i can do with it
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green monster
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post #532 of 560
Quote:
Originally Posted by massy086 View Post
can anyone give me bios setting for a giga p55a ud3 to get me started just got a 875k cheap so wana see what i can do with it
That will really depend on your chip. For example, mine likes 1.344v to run at 4GHz (30x133) but runs temps like it's getting 1.3v. Go figure.

If you're going to run a steady 4GHz, you can try 20x200, 21x191, 22x182, etc. If you do that, disable C1E and the C-states. You ought to be able to run with LLC and HT enabled. Start at a Vcore = 1.3v. If that survives your stability testing, drop it until you get BSOD. If you get BSOD at 1.3v you can increase it. Don't go over 1.4v, and watch your temps. Your chip can handle high temps better than high voltages.

OTOH, you can set yourself up as I have: 133MHz, using the 875k's unlocked multipliers to allow it to run from 9x to 30x, or 1200 to 4000 MHz. Install the Real Temp application, then right-click on the temp icon and choose "Turbo Boost Limits..." set them to max out at 30x for 1, 2, 3 and 4 cores. Also, set your Vcore to Normal + 0.0xx Volts. My setting is Normal + 0.025v. You have to explore to find out what yours needs to be.

Vtt in theory can go to 1.4v. I've found that above 1.3 got me little. I run mine at under 1.19v, since Intel originally specified that as the max Vtt for Lynnfield chips. You can actually drop your PCH to 1.1v, perhaps less, because your Gigabyte board has that flexibility.

If you go with the varying multiplier, enable EIST and take the time to adjust your minimum voltage:

Quote:
Control Panel >
Power Options >
High Performance > Change Plan Settings
Change advanced power settings >
Processor power management >
Minimum processor state >
Something small
(I have mine at 2%, but 5% will do)

This will allow your voltages to drop when EIST is enabled.
This should be enough to get you started. I can't wait to get another P55A-UD3P. A fine board, that.
alpha updated
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secundus
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post #533 of 560
Quote:
Originally Posted by Ghostleader View Post
@benleesg

Welcome onboard, Cory will add you to the spreadsheet in due time.

Looks like a solid OC, 8GB of ram , nice work
Thank you, Ghostleader
post #534 of 560
cheers ehume sitting at 4.2 no probs have tested for 6 hours with prime happy days temps are good too with a true 120 push and pull cheers again rep given
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post #535 of 560
Thread Starter 
Thread updated to include all K series processors.
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post #536 of 560
Can be in your club? lolz

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X58 Oc FuN
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32nM oC FuN
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post #537 of 560
Cory, update your links for CPU-Z and Real Temp. Those are kind of outdated now. lol
post #538 of 560
Thread Starter 
Quote:
Originally Posted by SimpleTech View Post
Cory, update your links for CPU-Z and Real Temp. Those are kind of outdated now. lol
Been getting around to it. I'm going to do it soon...lol.

@Ando, yes. I totally blanked on the clarkdale K's. You need at least 20 runs of IBT/Linx to be added though.

Here is my current overclock. It's still really rough, but I think it might be fully stable. Just have to do some more Prime95.


Edited by cory1234 - 1/14/11 at 1:59pm
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post #539 of 560
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post #540 of 560
Just put togeather my i7 875k which i just happen to bought off Cory1234. I'm currently running his known stable OC under water. The is my first intel build so I have LOTS of reading to do. I'd like to hit 4ghz eventually. Any settings i should try?
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