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AMD FX-4170 ZAMBEZI OVERCLOCKING

27K views 58 replies 11 participants last post by  Sea Monkey 
#1 ·
Hi, i have amd fx-4170 and want overclock this cpu and i need help tips how to do it rightway. I have now overclocked with changing multiplier to 23 so i get 4600mhz and rising stock voltage to 1,5125v mean 0,1v overvoltage. What is maximum safe overvoltage with aircooling for amd fx-4170 if anyone know then please tell me?? all overclocking tips and help are welcome.
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My system:

AMD FX-4170
GIGABYTE GA-990XA-UD3
ARES F3-1866C9D-8GAB
ASUS GTX 560 Ti DirectCU 2
CORSAIR TX650
Antec Three Hundred ATX
Alpenföhn Matterhorn Rev.B
 
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#2 ·
I don't know the maximum safe voltage but I wouldn't go over 1.5V for a 32nm chip. That's quite high for a 4.6GHz clock. I don't think 1.5V is stock for a 4170, is it?!
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Try decreasing the voltage to stock and increasing it bit by bit until you are stable in Prime 95 or 10 Intel Burn Tests. Try going as low as 1.25V to start with.
 
#3 ·
AMD FX-4170 stock voltage is 1,4125v it is designed use for 4200mhz stock frequency. What you say that your device makes me thinking is really good thing decreasing stock voltage and same time increasing stock frequensy when overclocking?? i cant get stable cpu if i go 4800mhz with 1,5125v but i get stable cpu 4600mhz with 1,5125v so i think myself now that 1,5125v can be good voltage for 4600 mhz because 4800 mhz doesnt work anymore with 1,5125v so 4600mhz is close that highbound what i can get with 1,5125v.I havent try can i use 4800mhz if i go over 1,5125v because i dont want kill my cpu i dont know how much voltage my cpu should really stand in safe overclocking.
 
#4 ·
Quote:
Originally Posted by overclocker1 View Post

AMD FX-4170 stock voltage is 1,4125v it is designed use for 4200mhz stock frequency. What you say that your device makes me thinking is really good thing decreasing stock voltage and same time increasing stock frequensy when overclocking?? i cant get stable cpu if i go 4800mhz with 1,5125v but i get stable cpu 4600mhz with 1,5125v so i think myself now that 1,5125v can be good voltage for 4600 mhz because 4800 mhz doesnt work anymore with 1,5125v so 4600mhz is close that highbound what i can get with 1,5125v.I havent try can i use 4800mhz if i go over 1,5125v because i dont want kill my cpu i dont know how much voltage my cpu should really stand in safe overclocking.
Leave the frequency at 4600MHz and decrease the voltage down to 1.4125V. See if it is stable like that.

After that, start increasing the frequency step by step until it is unstable, then increase the voltage until it is stable again.
 
#5 ·
Quote:
Originally Posted by Edge Of Pain View Post

Leave the frequency at 4600MHz and decrease the voltage down to 1.4125V. See if it is stable like that.

After that, start increasing the frequency step by step until it is unstable, then increase the voltage until it is stable again.
All I know is my FX6100 will need 1.51 volts to 4.6 as well. It all depends on h ow efficient the center is on you mobo.

The maximum safe 24/7 voltage is 1.5, so you might want to lower it a little.

Edit: if you want you can try using 1.5 volts for 240*19 aka 4.56ghz.

Thatwhat I'm running, and it runs cool and quiet.
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#6 ·
Thanks about advices. I try it little prime95 4600mhz with stock voltage it was stable but computer thinking more time with many commands example windows starting last little bit longer than with 1,5125v . I have calculate how much voltage cpu is made to need with stock and when i using 4600mhz with 1,5125v that is absolytely same ratio what is 4300mhz with 1,4125v. 1,4125v/4300mhz=same voltage for 1mhz what is 1,5125v/4600mhz. AMD FX-4170 is made to works with 4300mhz with automatic turbo with stock voltage 1,4125v. I m now satisfied my current overclock settings 4600mhz 1,5125v cpu are not too hot and cpu/computer works great. If i get more help and tips maybe then i can go over 4600mhz but then must go over 1,5125v and i dont know is that anymore safe for cpu.
 
#7 ·
Quote:
Originally Posted by overclocker1 View Post

AMD FX-4170 stock voltage is 1,4125v it is designed use for 4200mhz stock frequency. What you say that your device makes me thinking is really good thing decreasing stock voltage and same time increasing stock frequensy when overclocking?? i cant get stable cpu if i go 4800mhz with 1,5125v but i get stable cpu 4600mhz with 1,5125v so i think myself now that 1,5125v can be good voltage for 4600 mhz because 4800 mhz doesnt work anymore with 1,5125v so 4600mhz is close that highbound what i can get with 1,5125v.I havent try can i use 4800mhz if i go over 1,5125v because i dont want kill my cpu i dont know how much voltage my cpu should really stand in safe overclocking.
Here's the best way to start overclocking a PIledriver CPU (general guide)
From the BIOS
1: Load Optimal Defaults
2: Disabled Turbo, Disable Power Saving features, C'n'C, APM, C1e, C6, put LLC to 75% or Ultra High, set the CPU/NB Voltage to 1.25v, save settings and exit the BIOS
3: Back into the BIOS - find what your stock CPU voltage is with turbo disabled (it will be lower now)

I don't think Gigabyte has a Manual Mode for CPU or CPU/NB voltages. But if yours does, then manually set the voltage to whatever it is for the CPU.
Once you have all that set, then you should try and find your max overclock with the stock voltage. It will probably be around an extra 400-500Mhz.

I recommend to test with Prime95, because it will show you if an individual core fails stability. If that happens, then increase the CPU voltage a little.

Each time you increase the CPU Multiplier after you find your max overclock at stock voltages, just increase the cpu voltage by a couple notches and re-test.

If the computer BSOD's then it needs a couple more notches. If just a single core fails, then just increase one notch.

Good Luck
 
#8 ·
Thanks for TheLAWNOOB you answer to my important question how much is safe overvoltage for FX-4170. I go with my current settings 4600mhz with 1,5125v it is 0,0125v over safebound but i have powerfull aircooler that keeps cpu enought cool and i get 4600mhz overclocked cpu that works great and computer works great.
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#11 ·
Quote:
Originally Posted by overclocker1 View Post

ComputerRestore guide after when step 3 is ready what are CPU/NB votage? CPU voltage? what i should use when starting rising CPU frequensy?
I'd recommend setting the CPU/NB voltage to 1.25v as it helps with stabilty.

The CPU voltage is the one you increase as you increase the CPU frequency.
Find out far you can overclock on the stock voltage. If the CPU starts to fail stress testing, then you can start to increase the CPU voltage a little bit.
 
#12 ·
1,25v is my stock CPU/NB voltage so i dint do nothing with that.Highest frequensy with stock voltage are 4600mhz it seems to be stable and highest frequensy what i can get is 4700mhz seem to be stable only with rising voltage 0,0250v but i cant go to 4800mhz even i rising CPU voltage 1,56v that isnt stable. I have deside to stay 4600mhz that is very close maximum 4700mhz what are not 100% sure stable with all use but 4600mhz is stable like stock CPU. CPU voltage i deside decrease little because 4600mhz with 1,4125v can running prime95 without fails but i want be sure that my CPU can get enought power what needs so i will give 1,4875v that is under maximum safe voltage 1,5v and i belive that is better voltage for 4600mhz than what i using before 1,5125v what is very high voltage for FX-4170 with 400mhz boost.Let see now how FX-4170 works with new settings 4600mhz 1,4875v but i belive this is fine.
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#13 ·
Quote:
Originally Posted by ComputerRestore View Post

Here's the best way to start overclocking a PIledriver CPU (general guide)
From the BIOS
1: Load Optimal Defaults
2: Disabled Turbo, Disable Power Saving features, C'n'C, APM, C1e, C6, put LLC to 75% or Ultra High, set the CPU/NB Voltage to 1.25v, save settings and exit the BIOS
3: Back into the BIOS - find what your stock CPU voltage is with turbo disabled (it will be lower now)

I don't think Gigabyte has a Manual Mode for CPU or CPU/NB voltages. But if yours does, then manually set the voltage to whatever it is for the CPU.
Once you have all that set, then you should try and find your max overclock with the stock voltage. It will probably be around an extra 400-500Mhz.

I recommend to test with Prime95, because it will show you if an individual core fails stability. If that happens, then increase the CPU voltage a little.

Each time you increase the CPU Multiplier after you find your max overclock at stock voltages, just increase the cpu voltage by a couple notches and re-test.

If the computer BSOD's then it needs a couple more notches. If just a single core fails, then just increase one notch.

Good Luck
I didnt find from my bios C"n"C settings what is that C"n"C and is that important to be disable?
 
#15 ·
Quote:
Originally Posted by overclocker1 View Post

I didnt find from my bios C"n"C settings what is that C"n"C and is that important to be disable?
C'n'C is Cool ' n ' Quiet

It's recommended that you disable it while looking for your highest stable overclock. Once you find your Overclock settings you can turn it back on. It will reduce your frequency and voltage at idle to save some power.
Quote:
Originally Posted by overclocker1 View Post

CPU voltage is set from bios to 1,4875v and tested with CPU-Z and that showing CPU voltage 1,536v what that mean? why CPU-Z showing higher voltage for CPU than what is set from bios?
Is it showing 1.536v with the CPU under load or at idle.

If it's under load, it could be that the LLC Function is increasing the voltage too much.
 
#16 ·
Quote:
Originally Posted by ComputerRestore View Post

C'n'C is Cool ' n ' Quiet

It's recommended that you disable it while looking for your highest stable overclock. Once you find your Overclock settings you can turn it back on. It will reduce your frequency and voltage at idle to save some power.
Is it showing 1.536v with the CPU under load or at idle.

If it's under load, it could be that the LLC Function is increasing the voltage too much.
I disable now cool n quiet but nothing changes voltage and frequensy staying same. I decrease overvoltage for CPU it is now only 0,05v extra so idle voltage is 1,47v and max load 1,50v. LLC was reason why CPU voltage in bios was lower than CPU voltage in CPU-Z anyway i will keep LLC setting ultra high. Now everything overclock settings are like your guide except 0,05v overvoltage boost for CPU.
 
#17 ·
Quote:
Originally Posted by overclocker1 View Post

I disable now cool n quiet but nothing changes voltage and frequensy staying same. I decrease overvoltage for CPU it is now only 0,05v extra so idle voltage is 1,47v and max load 1,50v. LLC was reason why CPU voltage in bios was lower than CPU voltage in CPU-Z anyway i will keep LLC setting ultra high. Now everything overclock settings are like your guide except 0,05v overvoltage boost for CPU.
Well, your voltage still seems kind of high, but if you have your temps under control, and it passes some stability testing, it looks like you have a decent overclock.
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#18 ·
Quote:
Originally Posted by ComputerRestore View Post

Well, your voltage still seems kind of high, but if you have your temps under control, and it passes some stability testing, it looks like you have a decent overclock.
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Computer works fine but with Prime95 CPU max temperature go to 64˚C showing by Core Temp is that much? air dont easily cooled 125w overclocked CPU like i have powerfull air cooler and powerfull case fans but i cant go far with overvoltage when overclocking temperature start rising fast.
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#19 ·
Quote:
Originally Posted by overclocker1 View Post

Computer works fine but with Prime95 CPU max temperature go to 64˚C showing by Core Temp is that much? air dont easily cooled 125w overclocked CPU like i have powerfull air cooler and powerfull case fans but i cant go far with overvoltage when overclocking temperature start rising fast.
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That temp is a bit high for that Overclock. You should see if you can get that Overclock stable with less voltage. You probably wont see those kinds of temperatures in just gaming so it's fine if you can't lower the cpu voltage.
 
#20 ·
Quote:
Originally Posted by ComputerRestore View Post

That temp is a bit high for that Overclock. You should see if you can get that Overclock stable with less voltage. You probably wont see those kinds of temperatures in just gaming so it's fine if you can't lower the cpu voltage.
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
 
#21 ·
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.
 
#22 ·
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
 
#23 ·
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.
 
#24 ·
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
 
#25 ·
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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