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AMD FX-4170 ZAMBEZI OVERCLOCKING - Page 3

post #21 of 59
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Quote:
Originally Posted by Ghost12 View Post

Is this chip not running massive vcore comps? I have an fx4170 in my wifes rig, Stock vid is 1.35 and its clocked@4.6 with stock volts. It will run stock round 1.2 something

Well i havent never think that stock voltage for FX-4170 can be lower than 1,4125v what is automatically set with motherboard i have allways believe that motherboards will automatically recognize CPU stock voltage.
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post #22 of 59
Quote:
Originally Posted by overclocker1 View Post

Well i havent never think that stock voltage for FX-4170 can be lower than 1,4125v what is automatically set with motherboard i have allways believe that motherboards will automatically recognize CPU stock voltage.

All cpu have different vcore vid which differs within a specified range for stock clocks. The fx4170 range is from 0.925v - 1.4125v so it would seem yours is at the top of the range. This is the luck of the silicon lottery. Like I said I have a fx4170 that will run stock at 1.24 with a 1.35 vid therefore undervolted and runs 4.6 24/7 at 1.35. I have never pushed it further but would probably oc more. Its well within thermals, never above 45c core temps with a h100
post #23 of 59
Quote:
Originally Posted by Ghost12 View Post

Is this chip not running massive vcore comps? I have an fx4170 in my wifes rig, Stock vid is 1.35 and its clocked@4.6 with stock volts. It will run stock round 1.2 something

It seems like it is, but apparently it wont stay stable much lower.
These Piledriver CPU's have a large range of stock voltages. (1.25-1.42) and not all of them clock the same.

I made the mistake of giving people suggested settings based on my CPU (VID 1.284v - Ultra LLC puts it to 1.32v) and most of them weren't even able to POST with the voltages I used to OC with.

It's just dependent on the CPU.

Edited: Sorry didn't see you already replied
Quote:
Originally Posted by Ghost12 View Post

All cpu have different vcore vid which differs within a specified range for stock clocks. The fx4170 range is from 0.925v - 1.4125v so it would seem yours is at the top of the range. This is the luck of the silicon lottery. Like I said I have a fx4170 that will run stock at 1.24 with a 1.35 vid therefore undervolted and runs 4.6 24/7 at 1.35. I have never pushed it further but would probably oc more. Its well within thermals, never above 45c core temps with a h100

You might find this interesting. I graphed each Module of my CPU, because not only is there a difference between CPUs, but there is also a large difference between Modules within that CPU.



I guess the stock voltage spread is so large, because it's based on the weakest core/module.

If all my Cores were equal I'd be running 4.8Ghz at 1.325v. I wonder if there is Golden CPU like that in the Wild.
Edited by ComputerRestore - 1/29/13 at 9:49am
post #24 of 59
Yes I read something similar recently, its an interesting thought. I have never bothered going that deep with my fx8120 because im not experienced enough to do it personally. MY fx wont gain stability above 4.7 from my efforts. Im considering replacing with the piledriver. I should really push this fx4170 more to be honest as it under volts and clocks reasonably high on stock but for its purpose(vampire diaries for the wife) it does just fine
post #25 of 59
Thread Starter 
Quote:
Originally Posted by Ghost12 View Post

All cpu have different vcore vid which differs within a specified range for stock clocks. The fx4170 range is from 0.925v - 1.4125v so it would seem yours is at the top of the range. This is the luck of the silicon lottery. Like I said I have a fx4170 that will run stock at 1.24 with a 1.35 vid therefore undervolted and runs 4.6 24/7 at 1.35. I have never pushed it further but would probably oc more. Its well within thermals, never above 45c core temps with a h100

You using about 0,1v overvoltage for 400mhz boost it is same what i using before but now using little less about 0,9v overvoltage for 400mhz boost. Maybe my thermalcompound are not enought good it is NT-H1 should be great but maybe my tube doesnt work like that should work really or i dont know but i planning to buy better thermalcompound and see then what happen to CPU thermal.
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post #26 of 59
Thread Starter 
Core Temp show CPU idle temperature 20°c and from bios CPU idle temperature is 35°c why is so big difference? which is closer to true temperature?
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Western Digital Samsung Alpenföhn Matterhorn Windows 7 
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post #27 of 59
Quote:
Originally Posted by overclocker1 View Post

Core Temp show CPU idle temperature 20°c and from bios CPU idle temperature is 35°c why is so big difference? which is closer to true temperature?

Neither, idle temp not accurate until around 46c I believe. Only relative under load. Idle just lets you know you have a cooler fitted
post #28 of 59
Thread Starter 
What is max safe temperature for fx-4170? i have tried overclock with 1,58v and temperature rising fast to 75°C and then stopped stressing cpu. I just tried how much overvoltage my alpenföhn matterhorn can handle and seems like 1,58v is too much power.
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CPUMotherboardGraphicsRAM
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Western Digital Samsung Alpenföhn Matterhorn Windows 7 
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HP Steel Series Corsair Antec three hundred 
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Western Digital Samsung Alpenföhn Matterhorn Windows 7 
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post #29 of 59
Quote:
Originally Posted by overclocker1 View Post

What is max safe temperature for fx-4170? i have tried overclock with 1,58v and temperature rising fast to 75°C and then stopped stressing cpu. I just tried how much overvoltage my alpenföhn matterhorn can handle and seems like 1,58v is too much power.

70c on the cores . 1.58 is massive voltage even when water cooled. You may kill/degrade your cpu very quickly at those temps and vcores
post #30 of 59
I'm looking at overclocking my AMD FX-4170.
I'm thinking of using Arctic Silver 5, unless some can recommend a better thermal paste.
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