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i7 3820 - 4820 Overclock Club - Page 62

post #611 of 6499
^Well there is a correlation between the density of transistors and performance, but it isn't as strong as Moore's law would suggest.
post #612 of 6499
Alright.. I set my BLK to 125 and my multi to 35 on stock volts with Hyperthreading still on and passed Intel's burn test. Temps are alot higher, but Thats to be expected. Hit 70 under Burn test and about 60 while rendering 1080p video. I'ma leave it here for now and may adjust more!

Thanks for the help guys
eNVy
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eNVy
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post #613 of 6499
What do you do when you OC it too high and it won't post? Once I get to 39x125 I get no post or anything. I set the voltage to 1.4v but the Asrock Extreme 6 doesn't have an extra voltage setting. I'd really like to figure it out since I still have low 70's temps and at 1.36v.
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post #614 of 6499
If it won't post you can use the Clr CMOS button, that will reset all the settings in the BIOS.
post #615 of 6499
I did but I'm talking about getting 39x125 to post and get it stable. Nothing happens when I set it to 4.875. It just sits there. Do I need to go to 1.45v or higher to get it to post or is it the limit already?
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post #616 of 6499
Have you been increasing the multiplier in small intervals or not? If not then try going down to 37 and testing, then 38 and try increasing the vcore to get it stable in steps. It also might be worth looking around OCN to see what vcore other people needed to get to 4.875, the numbers won't be the same for you but it'll give you a rough idea.

Are you just going for benchmarking or are you trying to keep it that high for 24/7?
post #617 of 6499
Quote:
Originally Posted by oglommi View Post

My bad, just wikipediaed and moore's law is a doubling of transistor chips on a integrated circuit every two years. I thought it was a doubling of computing strength every 18 months. Six core Xenon and I7's actually exceeded moore's law.

The thinking of the day was that die shrinks would allow frequency to be scaled to astronomical limits. Intel predicted in 2000 that we would be running 10GHz chips by 2011 (a prediction many thought to be short selling themselves) ; however the reality has been that Intel did not release a chip with a nominal frequency above I believe 3.6 (i7 3820) and has not crossed the 4GHz barrier even in turbo boost frequencies in 2011. While some of this can be chalked up to the reduced competition from AMD Netburst really brought it home for Intel that scaling of frequency has its limits.

Core counts have increased and undoubtedly in a well threaded application a 3930K is at least ten times as fast as a single core Pentium 4 at similar clocks.
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post #618 of 6499
24/7. I have it at 4.75 stable at 1.36v with 1666 RAM. I just tried upping BCLK and lowered the RAM speed and got to 4850 before it wouldn't post so obviously my chip's limit is 4.85 at low ram speed(1333). I then upped the multi at 1684 or so but I got a clock interrupt failure so maybe I could get 4.85 at 1.4+ with 1700 RAM but I think I will leave it at 4.75. 100mhz isn't worth the extra voltage.
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My System
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Intel X25-M 80GB,Crucial M4 128GB,2 750GB+1.5TB... 2 DVD-Rom(BR) Prolimatech Mega Shadow push/pull Windows 7 x64 Home Premium 
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Shimian 27" 2560x1440 Logitech G510 Cooler Master Silent Power Pro 1000 watt Cooler Master Storm Sniper Blk 
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post #619 of 6499
Can anyone tell me if there is a way to keep my pc from sleeping? Whenever I leave it on for a long time it goes to sleep then gets stuck at a 30 q-code then after I restart it it stays at a 40 q-code and finally after another restart it posts correctly. Any ideas on why it does this?
post #620 of 6499
Quote:
Originally Posted by AbsurdMan View Post

Can anyone tell me if there is a way to keep my pc from sleeping? Whenever I leave it on for a long time it goes to sleep then gets stuck at a 30 q-code then after I restart it it stays at a 40 q-code and finally after another restart it posts correctly. Any ideas on why it does this?

Control panel /power options /change plan settings/ put the computer to sleep: NEVER
    
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