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Hello im new to overclocking and decided id like to go a step further than just multiplier.... I have an FX-4350 with a multiplier of 22.5 in the CPU ratio but i wanna try and go higher with tweaking bus speed and voltages my only problem i dont really know what Voltages to change, how far to set them and where the limit is. Please don't criticize or make this an INTEL or AMD convo i am just here to learn and figure out new tricks to the overclocking trade. I was wondering if NB is the same as the CPU voltages or if its different my bored is a MSI 970 Gaming, planning to move to a 990FX with a 6300 soon any tips are a great acceptance so please give you input and knowledge 
Here is a picture of my BIOS just tell me what i need to do:

MSI_SnapShot.bmp

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You change the Vcore if you need to. If your CPU is unstable with the clock speed you are trying to achieve, you need more voltage. Add more voltage until you get to a temperature you're not comfortable with, or to the point where adding more voltage doesn't seem to increase stability. Assuming your cooling isn't water, try to stay under 1.3. This is my general process for overclocking Intel chips, but it should work for AMD.

ASU

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4 minutes ago, Hackentosher said:

You change the Vcore if you need to. If your CPU is unstable with the clock speed you are trying to achieve, you need more voltage. Add more voltage until you get to a temperature you're not comfortable with, or to the point where adding more voltage doesn't seem to increase stability. Assuming your cooling isn't water, try to stay under 1.3. This is my general process for overclocking Intel chips, but it should work for AMD.

u do have water but which voltage do i change NB or the CPU cause the NB shows voltage in 1.x but the CPU shows voltage in +/-0.xxxxxxxxxx

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1 minute ago, silverjay928 said:

u do have water but which voltage do i change NB or the CPU cause the NB shows voltage in 1.x but the CPU shows voltage in +/-0.xxxxxxxxxx

Um, I don't know. Just look for an AMD overclocking guide.

ASU

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2 hours ago, silverjay928 said:

u do have water but which voltage do i change NB or the CPU cause the NB shows voltage in 1.x but the CPU shows voltage in +/-0.xxxxxxxxxx

CPU-NB Voltage: For the Integrated Memory Controller (IMC) inside the CPU. Once you reach higher overclocks, increasing the CPU-NB voltage CAN help with stability.

 

NB Voltage: For the Northbridge chipset on the motherboard. The NB is the 970 chipset on your MSi motherboard. In 90% of the cases, you do not need to touch this voltage.

 

CPU / Core Voltage: Your CPU voltage.

 

The FX-4350 is an unlocked CPU -- meaning unlocked CPU multiplier.

Since you are just learning how to overclock a CPU, start by knowing how to overclock a Processor by just adjusting the CPU Ratio multiplier.

 

Try to overclock by increasing the Bus frequency (stock is 200 MHz) AFTER you understand the basics of overclocking.

"Learn how to walk before you run."

 

EDIT: 

Just noticed your screenshot of your BIOS.

Can you take a screenshot of your COMPLETE motherboard's UEFI BIOS -- all the different tabs / menus.

 

But from what we can see so far....

CPU FSB Frequency: Your CPU Base (AKA FSB / Core) frequency. Stock is 200 MHz. Leave that at stock for now.

 

CPU Ratio: Also know as your CPU multiplier. Slowly increase that to overclock your FX-4350 (e.g. Increase to 23 or 24 and run a stability test).

 

CPU-NB Ratio: This is the frequency of the Integrated Memory Controller (IMC). Compared to older AM3 CPUs, there is not much benefit in overclocking the CPU-NB for AM3+ CPUs. You are okay to leave it at either the stock 2200 MHz or bring it up to 2400 MHz.

 

CPU Smart Protection: Built-in overheating CPU protection. Have this Enabled.

 

CPU Core Control: Allows to you disable cores. Leave this on Auto.

 

AMD Turbo Core Technology: Self explanatory. For the ease of overclocking, leave this disabled. You can re-enable it once you are happy with your overclocking results.

 

DRAM Frequency: If XMP or AMP memory profiles are detected for your memory kit, enable this feature. In your screenshot your RAM is get to run at DDR3-1333 MHz, but at the top it says only DDR3-1145 MHz. Either enable XMP / AMP, or manually adjust your RAM to run at the proper (advertised) frequency.

 

DRAM Timing Mode: All your DRAM memory timings. If you are manually adjusting your memory, then adjust the timings according to the advertised specifications (e.g. for DDR3-1600 MHz, 9-9-9-24-2T timings).

 

HT Link Speed: You can leave this at the fixed 2200 MHz or 2400 MHz. There is not much benefit in overclocking the HT Link.

 

PCI-E Frequency: The operating frequency for the PCI-Express lanes / slots. LEAVE THIS AT 100 MHz.

 

CPU Voltage: The main voltage for your FX-4350. I recommend that you start at 1.3V, and slowly increase it if your overclock it unstable (e.g. 1.30V, 1.32V, 1.33V, 1.35V, etc). Depending on your level of CPU cooling, I would not recommend anything higher than 1.4V~1.45V.

 

CPU-NB Voltage: The voltage for the IMC (as mentioned before). Increasing the CPU-NB may help stabilize an overclock, but in most cases, 1.23V ~ 1.25V is more than enough. If I am not mistaken, the stock voltage should be 1.200V.

 

DRAM Voltage: Your RAM's voltage. Set this to the advertised specifications value (e.g. If your memory is advertised to run at DDR3-1600 MHz 9-9-9-24-2T 1.5V, then set it it 1.5V). If you enabled XMP / AMP, it should automatically to this for you.

 

NB Voltage: Voltage for the Northbridge chipset on your motherboard (e.g. the 970 chipset). You can leave this on Auto. I believe stock voltage is ~1.1V.

 

SB Voltage: Voltage for the Southbridge chipset on your motherboard (e.g. the SB950 chipset). You can leave this on Auto. I believe stock voltage is ~1.1V as well.

 

2 hours ago, Hackentosher said:

You change the Vcore if you need to. If your CPU is unstable with the clock speed you are trying to achieve, you need more voltage. Add more voltage until you get to a temperature you're not comfortable with, or to the point where adding more voltage doesn't seem to increase stability. Assuming your cooling isn't water, try to stay under 1.3. This is my general process for overclocking Intel chips, but it should work for AMD.

AMD CPUs can tolerate much higher Core Voltages compared to their Intel counter-parts.

They are able to handle ~1.5V *IF* there is adequate cooling.

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