******Gigabyte GA-P67A-UD4 Discussion Thread******

[Gaul]

anyone explain ?

Sandybridge maximum safe voltages

Core Voltage - Not recommended too exceed 1.38v, doing so could kill the CPU, we therefor recommend a range of 1.325-1.350v if overclocking.
Memory Voltage - Intel recommend 1.50v plus/minus 5% which means upto 1.58v is the safe recommended limit. In our testing we have found 1.65v has caused no issues.
BCLK Base Clock - This is strictly a NO, anyone using base clock overclocking could/will cause damange to CPU/Mainboard. (Set manually to 100)
PLL Voltage - Do not exceed 1.9v!!

here : http://forums.overclockers.co.uk/sho...3#post18190523

[Forceman]

anyone explain ?

Sandybridge maximum safe voltages

Core Voltage - Not recommended too exceed 1.38v, doing so could kill the CPU, we therefor recommend a range of 1.325-1.350v if overclocking.
Memory Voltage - Intel recommend 1.50v plus/minus 5% which means upto 1.58v is the safe recommended limit. In our testing we have found 1.65v has caused no issues.
BCLK Base Clock - This is strictly a NO, anyone using base clock overclocking could/will cause damange to CPU/Mainboard. (Set manually to 100)
PLL Voltage - Do not exceed 1.9v!!

here : http://forums.overclockers.co.uk/sho...3#post18190523

One site/person's opinion?

[Lsdmeasap]

my chip doesnt do more than 104.5 on air lol

I think about 102 is the limit for this one on air, not sure though as I think I only tried once and it may have been at a high multi?

Well Phase was easy to use and didn't cause any issues, but it also didn't get me any higher CPU multi either. So 51 must be the limit of this CPU, or I need to maybe try again with UD7 and see if that will help. I do think phase would be nice to use for benching, I didn't have much time to play but I think it would help keep high clocks stable easier than air/water.

I do have to say, WOW, the older BIOS is much more stable when it comes to failed overclocks and rebooting at high clocks. I used F3 for a long time and it was like X58/P55 with failed clocks, but as soon as I moved to the newer BIOSes to try with CPU PLL option everything hit the fan when it comes to failed settings and rebooting, ect. That made it super bad for me, I was using a screwdriver to start the board and clear CMOS I need to order a set of switches

Hopefully they can fix these issues, otherwise I may just go back to the older BIOSes on UD4 and UD7 for my reviews. I think that may be ok for me anyway because I can boot x51 multi without CPU PLL option, which makes me surprised that even with the option enabled that is all this CPU can do.

I'm gonna try to find a retail soon, if I can scrounge up the cash.

Coolaler already clock at 110.74 bclk and 5.5GHz.

http://img703.imageshack.us/i/110point72.png/
http://www.coolaler.com/showthread.php?t=257294

Wow, I can't beat that!

What is max you've seen on Gigabyte Stasio?

[wekktor]

1. Which bios is the best?

2. Does any bios make it require less volt for same clock?

3. If something goes wrong while flashing, are there any way to get it back again? Gigabyte dualbios?

Thx

[stasio]

Wow, I can't beat that!

What is max you've seen on Gigabyte Stasio?

So far,yours.

[Gaul]

One site/person's opinion?

yup....

[OldChap]

anyone explain ?

Sandybridge maximum safe voltages

Core Voltage - Not recommended too exceed 1.38v, doing so could kill the CPU, we therefor recommend a range of 1.325-1.350v if overclocking.
Memory Voltage - Intel recommend 1.50v plus/minus 5% which means upto 1.58v is the safe recommended limit. In our testing we have found 1.65v has caused no issues.
BCLK Base Clock - This is strictly a NO, anyone using base clock overclocking could/will cause damange to CPU/Mainboard. (Set manually to 100)
PLL Voltage - Do not exceed 1.9v!!

here : http://forums.overclockers.co.uk/sho...3#post18190523

These numbers are all derived from the intel spec (data)sheet

[danielkza]

These numbers are all derived from the intel spec (data)sheet

There's nothing on the datasheet about safe core voltages.

[dinos22]

that website is just pulling it out of its arse without any real world testing it cannot be concluded that this or that voltage is safe, Intel limits didnt mean with any other gen of product, it's actual user testing here and other forums that really tells the story anyways

time will tell