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Asus P67 Series Information Thread (drivers, BIOSes, overclocking, reviews) **UPDATED 4/22** - Page 152

post #1511 of 3000
Quote:
Originally Posted by Xcrunner View Post
Wow... was messing with some settings trying to get 5 Ghz and my computer booted into windows with 1.61v on my cpu... hopefully it didn't damage anything...

I just had some questions about overclocking. In order to achieve 4.5 Ghz I just changed the multiplier to 45. Is that all I need to change? My rig booted up and I started CPU-Z and my rig was idling at 4.5 Ghz and 1.38v. It eventually stepped down to 1600Mhz. Why doesn't it boot into the lower powered state? Also full load uses under 1.33v... why does it boot with a higher voltage than that?
During POST, the CPU is running at its "Turbo" speed right up until the time the OS and startup programs completely load. Once everything loads, it takes a few seconds for speed-step to kick in and drop the CPU to the 1.6Ghz idle speed.

Usually any OC (with one of the better CPUs), up to around 4.6, all you need to do is change the multiplyer. If you are running Auto Voltage and offset mode, you will typically find that you can manually lower the voltage set by "Auto" with the same OC.
Edited by xandypx - 3/27/11 at 10:05pm
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Rusty Metal
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post #1512 of 3000
Quote:
Originally Posted by fortunesolace View Post
Guys, I hope you can help me. I'm planning to buy the Asus p8p67 deluxe but I'm worried if the pcie x1 top slot right beside with the board heatsink will prevent me from installing my pcie x1 Xonar Xense audiocard on it. So if any of you installled a long pcie x1 device could you please tell me if the said heatsink is too tall for any installation problems.

Thanks in advance!
It will not. I am running Creative X-FI HD and it fits perfectly.
post #1513 of 3000
Any fix for a vdroop apart from using a manual voltage?
post #1514 of 3000
Quote:
Originally Posted by fortunesolace View Post
Guys, I hope you can help me. I'm planning to buy the Asus p8p67 deluxe but I'm worried if the pcie x1 top slot right beside with the board heatsink will prevent me from installing my pcie x1 Xonar Xense audiocard on it. So if any of you installled a long pcie x1 device could you please tell me if the said heatsink is too tall for any installation problems.

Thanks in advance!
That heatsink is very low profile and will not block anything Trust me, I'm using one.
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post #1515 of 3000
Anyone knows where the "motherboard" thermal sensor is located? I have been played around with various voltage setting, while the CPU temp can change quite a bit, the motherboard temp doesn't. So I guess it was somehow placed at a irrelevant area?

I've been playing with LLC. Since the higher you set the LLC, the less Vdroop you get, I tried setting LLC to Extreme to elimiate Vdroop and find out more precisely what CPU voltage is needed for full load at certain clock speed. But with LLC set to Extreme, the higher the CPU voltage I set, the faster my system reboot when running stress tests. BUT, given the same CPU voltage setting in BIOS, with LLC set to High, which means that more Vdroop and less actual CPU voltage under full load, my system is actually more stable! Also, when stress tests failed, I'd get a BSOD before rebooting if LLC = High. But if LLC is set to Extreme, the reboots are instant reboots with no BSOD. So I guess the causes for instability are different in these cases.

I'm suspecting the reboot with LLC = Extreme is due to motherboard instability (possibly some parts getting too high temp?), while the reboots with LLC = High is due to insufficient voltage for CPU.

My plan: User manual CPU voltage setting to find the lowest actual CPU voltage needed to sustain OC under full load. Once that is done, switch to offset mode to find the lowest CPU voltage needed to maintain stability when not under 100% load.
Edited by khtse - 3/28/11 at 12:41pm
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post #1516 of 3000
Quote:
Originally Posted by Iching View Post
Any fix for a vdroop apart from using a manual voltage?
User higher LLC settings reduces vdroop.

For example, CPU voltage = 1.31v in BIOS
With LLC = High, actual CPU voltage = 1.32 when Idle, and 1.264~1.28 under full load.
With LLC = Extreme, actual CPU voltage = 1.304~1.312 when Idle, and 1.32~1.328 under full load.

But setting LLC = Extreme seems to cause my system to be more unstable. I'm setting it to High for now.
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post #1517 of 3000
Quote:
Originally Posted by khtse View Post
User higher LLC settings reduces vdroop.

For example, CPU voltage = 1.31v in BIOS
With LLC = High, actual CPU voltage = 1.32 when Idle, and 1.264~1.28 under full load.
With LLC = Extreme, actual CPU voltage = 1.304~1.312 when Idle, and 1.32~1.328 under full load.

But setting LLC = Extreme seems to cause my system to be more unstable. I'm setting it to High for now.
Do you not have the ultra high setting? The one in between high and extreme? When I use ultra high, the voltage I set in BIOS is the same idle/load voltage I get.
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post #1518 of 3000
Quote:
Originally Posted by khtse View Post
User higher LLC settings reduces vdroop.

For example, CPU voltage = 1.31v in BIOS
With LLC = High, actual CPU voltage = 1.32 when Idle, and 1.264~1.28 under full load.
With LLC = Extreme, actual CPU voltage = 1.304~1.312 when Idle, and 1.32~1.328 under full load.

But setting LLC = Extreme seems to cause my system to be more unstable. I'm setting it to High for now.
You are using manual voltage in BIOS? Having a constant 1.32 is quite toasty. I have my offset set to +0.1000 and my idle vcore is 1.088 @ 4.7GHz (1.392 in AIDA).
post #1519 of 3000
does the new B3 boards overclock worse?

did anyone receive defect replacement boards from asus? just wondering since it can happen to anyone
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post #1520 of 3000
Quote:
Originally Posted by puffsNasco View Post
does the new B3 boards overclock worse?

did anyone receive defect replacement boards from asus? just wondering since it can happen to anyone
Mine overclocks just fine. Was able to get the new board up to 5.6Ghz. My old board was a Gigabyte so I don't have a real comparison.
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