Gigabyte GA-P67A-UD5 Discussion Thread

[Movieman]

badabump..

[C-N]

badabump..

Many thanks ^

[C-N]

Back in business boys & galls.

Heres where I left off

4850MHz Straight 8's Linx & 3D Stable


Done some tinkering 1M & 32M runs

DDR1886 CL8 2T 1M & 32M


DDR1886 CL7 1T 1M & 32M


I also done some DDR2150 CL8 runs but these were about 10~15 seconds slower in 32M

[GoldenTiger]

badabump..

Woots! Let the info's roam free!

[C-N]

F5x Bios 5GHz loving

[OC Maximus]

Outstanding C-N, glad to see the thread back up

OCM

[C-N]

Outstanding C-N, glad to see the thread back up

OCM

He he yes Sandy Bridge & the UD5 are outstanding ..... thanks bud

Super Pi 32 & 1M @ 5GHz DDR 1886 CL8 1T



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[C-N]

Bios screens & templates added to the first post

5.4GHz Boot into windows....



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[flesheatinvirus]

Simply awesome work there CN. I can not wait to get one for my UD5

[C-N]

Simply awesome work there CN. I can not wait to get one for my UD5

I got lucky finding mine before xmas, present to me from me & got a second present when the new Bios made 5GHz easy. You'll love the board, I do its ripping up everything I own effortlessly.

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[GoldenTiger]

Great posts & results C-N !

I'm curious... what is the "safe" max voltage on 24/7 air for these chips? I hear conflicting reports from 1.45v (what most say, set to 1.5 and vdroop should bring it there) to 1.6 or so ?

[C-N]

Great posts & results C-N !

I'm curious... what is the "safe" max voltage on 24/7 air for these chips? I hear conflicting reports from 1.45v (what most say, set to 1.5 and vdroop should bring it there) to 1.6 or so ?

Thanks I'm having a lot of fun over here.

Cant really say as I haven't seen the absolute maximum voltage specs or temps yet but for me 1.45v @ 5GHz running LinX @ 70oC sounds safe to me.

My Chip has has lots of volts both vcore & vdimm & not just for 2 minutes either & its still alive. One thing I hope we will learn a little more about is the new Internal PLL over ride thingy. My CPU PLL is only 1.58 for 5GHz & I just hope the internal PLL is not at killer levels to get these chips to fly. I have wrecked many good chips pushing PLL.

Only time will tell.
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[RPGWiZaRD]

Really nice 2500K you got there! 4.9 - 5GHz looks like a sweetspot for that cpu for 24/7 use, very nice.

[flesheatinvirus]

I got lucky finding mine before xmas, present to me from me & got a second present when the new Bios made 5GHz easy. You'll love the board, I do its ripping up everything I own effortlessly.

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That is what happened to me the last time I tried a Gig board which was the UD3P. It broke every existing record I set with three different boards with ease and demanded seconds.

[masotime]

OK I think I have the right thread this time.

Does anyone know what are the effects of using slower RAM (e.g. normal 1333 Mhz) when overclocking e.g. a i7-2600K on this motherboard?

• Is real-world performance like on games, video encoding, compression and compiling significantly affected if you use slower RAMs?
• Will overclocking be limited if you use slower RAM e.g. unable to hit 5Ghz?

My understanding is that since memory is clocked independently of the processor, CPU overclocking should not depend on memory speeds, but it's also possible that slower RAMs = lower memory bandwidth, which may have an effect on overall performance - although my main concern is in daily usage rather than benchmarking.

Thanks in advance.

[Johnny87au]

F5x Bios 5GHz loving

Nice 2500k you have there, 1.4vcore for a 5ghz clock

[C-N]

Really nice 2500K you got there! 4.9 - 5GHz looks like a sweetspot for that cpu for 24/7 use, very nice.

Thanks, I'll aim at 5GHz for daily use & see how it holds up but to be fair even 4.5GHz is plenty fast.

That is what happened to me the last time I tried a Gig board which was the UD3P. It broke every existing record I set with three different boards with ease and demanded seconds.

its all good but going to need some better ram, video card etc etc to keep up with this lot now!

OK I think I have the right thread this time.

Does anyone know what are the effects of using slower RAM (e.g. normal 1333 Mhz) when overclocking e.g. a i7-2600K on this motherboard?

• Is real-world performance like on games, video encoding, compression and compiling significantly affected if you use slower RAMs?
• Will overclocking be limited if you use slower RAM e.g. unable to hit 5Ghz?

My understanding is that since memory is clocked independently of the processor, CPU overclocking should not depend on memory speeds, but it's also possible that slower RAMs = lower memory bandwidth, which may have an effect on overall performance - although my main concern is in daily usage rather than benchmarking.

Thanks in advance.

Welcome to the forum

Yes you are quite right memory is independent of clock speed you got something like 800, 1066, 1333, 1600, 1866, 2133 to chose from.

Bandwidth is still massive even on the slower memory multipliers & looser latency RAM so I wouldn’t be worried using slower stuff. In the real world I wouldn’t say you will notice any performance hit doing day to day things sure I can probably measure some difference in a bench test & you may have to wait a few seconds longer to burn a DVD or Zip up a file but that’s no big deal.

Nice 2500k you have there, 1.4vcore for a 5ghz clock

I love it, haven’t seen any that cant clock yet so maybe they all go good.

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[Astennu]

OK I think I have the right thread this time.

Does anyone know what are the effects of using slower RAM (e.g. normal 1333 Mhz) when overclocking e.g. a i7-2600K on this motherboard?

• Is real-world performance like on games, video encoding, compression and compiling significantly affected if you use slower RAMs?
• Will overclocking be limited if you use slower RAM e.g. unable to hit 5Ghz?

My understanding is that since memory is clocked independently of the processor, CPU overclocking should not depend on memory speeds, but it's also possible that slower RAMs = lower memory bandwidth, which may have an effect on overall performance - although my main concern is in daily usage rather than benchmarking.

Thanks in advance.

It will depend on the application. Some applications are memory bandwith limited. In that case the X58 platform is the best choice. But mostly memory speeds do not impact Games and the most standaard appllications much. Applications that need to acces a lot of data in big files will get a boost from fast memory.

[masotime]

Thanks for the replies everyone!

I guess in summary, it's really memory-intensive applications / benchmarks that will benefit from higher-frequency / lower latency memory on SB. Having lower clocked memory should not affect my ability to OC the K-series CPUs to high speeds while maintaining stability, since just changing the multiplier to increase the CPU's frequency will not require speeding up the memory frequency to match it.

[Astennu]

Jep thats true. In the past the memory frequency would also increase because most of us did not have K or extreme cpu's with unlocked multi's. And where using the Bclock to overclock.
But you did have the memory multiplers so you could lower those lowest is 6x. most of the time you could find one that suited your bclock.

[C-N]

Updated the reserved 2nd post in this thread to include a "Tips, Tricks & Observations" section... might come in handy for some to get there beast up & running a bit quicker.

Hope you guys with UD5's can help me fill in the gaps & add in your findings.

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[ProStreetCamaro]

Hope you guys with UD5's can help me fill in the gaps & add in your findings.

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I would love to but I can not find a 2600K any where. Looks like I am stuck waiting till the 9th to order one. Already have the UD5 and GSkill ECO ram just need the CPU.

[OC Maximus]

I'm still trying to find a retail 2600k.

OCM

[famich]

Hello, guys ,

I got here 2600K ES D1 stepping and , hopefully, two 2500K s on the way.. so.. hoping for some nice overclocks here.

My only prob now is ASUS P8P67 DL board, that came with the 0501 BIOS
and my ES had the 47 multi wall, after updating to 0801 the wall is at 48

There s no sight of any improved BIOS from ASUS side, so I m considering grossly to switch to GB UD 5 seeing the support of the manfuacturer and you ,
nice and knowledgeable community

I have managed 4530 MHz on my old XeonW3520 @Zalbard s "4.5 Ghz Club " and now Im looking FW to SB niche.

Could you point me to the Fx beta BIOS site for UD5, pls ? Thanks

[C-N]

I would love to but I can not find a 2600K any where. Looks like I am stuck waiting till the 9th to order one. Already have the UD5 and GSkill ECO ram just need the CPU.

I'm still trying to find a retail 2600k.

OCM

Not that far away, will be good to share results etc.

Hello, guys ,

I got here 2600K ES D1 stepping and , hopefully, two 2500K s on the way.. so.. hoping for some nice overclocks here.

My only prob now is ASUS P8P67 DL board, that came with the 0501 BIOS
and my ES had the 47 multi wall, after updating to 0801 the wall is at 48

There s no sight of any improved BIOS from ASUS side, so I m considering grossly to switch to GB UD 5 seeing the support of the manfuacturer and you ,
nice and knowledgeable community

I have managed 4530 MHz on my old XeonW3520 @Zalbard s "4.5 Ghz Club " and now Im looking FW to SB niche.

Could you point me to the Fx beta BIOS site for UD5, pls ? Thanks

The 47/48 Multi is probably due to the D1/ES CPU rather than the board.

Zalbards club rocks.... its a good game.

The F5x Bios was on here somewhere but its sorta accepted the best place for regular updates is here http://forums.tweaktown.com/gigabyte...test-bios.html thanks to Stasio

Hope to see you playing UD5 with us
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