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| System Name | I don't name my rig |
|---|---|
| Processor | 14700K |
| Motherboard | Asus TUF Z790 |
| Cooling | Air/water/DryIce |
| Memory | DDR5 G.Skill Z5 RGB 6000mhz C36 |
| Video Card(s) | RTX 4070 Super |
| Storage | 980 Pro |
| Display(s) | 1080P 144hz |
| Case | Open bench |
| Audio Device(s) | Some Old Sherwood stereo and old cabinet speakers |
| Power Supply | Corsair 1050w HX series |
| Mouse | Razor Mamba Tournament Edition |
| Keyboard | Logitech G910 |
| VR HMD | Quest 2 |
| Software | Windows |
| Benchmark Scores | Max Freq 13700K 6.7ghz DryIce Max Freq 14700K 7.0ghz DryIce Max all time Freq FX-8300 7685mhz LN2 |
This very short small tip is to inform you about FIT voltage (Fast I/O Table) and how to prevent torching your CPU before you overclock. This will help keep degradation to a minimum, and should help OC within a reasonable V-core.
So how it works is simple actually.
The system, including memory needs to be at defaults. Setting XMP may raise other voltages that would effect your temps.
To begin, a heavy workload (all cores/threads) such as AVX or AVX2 for a period of time long enough to level out and stabilize the working CPU temp.
You will observe the v-core with cpu-z and can confirm with hwinfo64. That is your working FIT voltage. At a stock system.
Repeat this test if you use XMP and or tune manually any settings that would effect the CPU temps. (but still do it at stock, you need a baseline)
NOTE: The more times you run this, the better your averages. (like any testing) This is your MAX v-core you want to utilize for any manual tweaking.
Once you've taken note of that FIT v-core, this is the number you want to base your overclock and tweaking around. Staying at or Under the FIT voltage will help prevent degradation, and possible burnt chips.
If you utilize a higher LLC, this may not matter if you actually hit throttle temperatures. The v-core and clocks will dynamically lower to the temp.
Why did I write this?
Well when you look up max voltage for a Ryzen CPU, it'll say 1.35v is "safe" or "up to" 1.40v is safe".
I'm sorry, this is not good guidance for anyone from a google search.
This is reserved for ALL Ryzen processors since release 1st Gen. So it doesn't matter which generation, or which cpu you have. utilize this tip above and you will have an understanding what "safe" is for your Ryzen CPU and what you could do to prevent too high of v-core.
Since everyone has different cooling/environment, this is the only accurate way to approach overclocking sensibly. But if you manually OC, stay below the max PBO/2 v-core F.I.table if possible.
Please add useful comments and screenshots of your stock and PBO FIT voltage to build a database!
Disclaimer:
Not a perfect world. This may or may not work well for you. Some days vary, cooling varies, ambient temps vary, and everyone has their own way of doing things. This is informative only, I & TPUeverything, hold no responsibility if you make mistakes and smoke your CPU. This guide is meant to prevent excessive OV by the user when they may or may not manually overclock or set other values high causing premature failure of the processor.
GLHF!
So how it works is simple actually.
The system, including memory needs to be at defaults. Setting XMP may raise other voltages that would effect your temps.
To begin, a heavy workload (all cores/threads) such as AVX or AVX2 for a period of time long enough to level out and stabilize the working CPU temp.
You will observe the v-core with cpu-z and can confirm with hwinfo64. That is your working FIT voltage. At a stock system.
Repeat this test if you use XMP and or tune manually any settings that would effect the CPU temps. (but still do it at stock, you need a baseline)
NOTE: The more times you run this, the better your averages. (like any testing) This is your MAX v-core you want to utilize for any manual tweaking.
Once you've taken note of that FIT v-core, this is the number you want to base your overclock and tweaking around. Staying at or Under the FIT voltage will help prevent degradation, and possible burnt chips.
If you utilize a higher LLC, this may not matter if you actually hit throttle temperatures. The v-core and clocks will dynamically lower to the temp.
Why did I write this?
Well when you look up max voltage for a Ryzen CPU, it'll say 1.35v is "safe" or "up to" 1.40v is safe".
I'm sorry, this is not good guidance for anyone from a google search.
This is reserved for ALL Ryzen processors since release 1st Gen. So it doesn't matter which generation, or which cpu you have. utilize this tip above and you will have an understanding what "safe" is for your Ryzen CPU and what you could do to prevent too high of v-core.
Since everyone has different cooling/environment, this is the only accurate way to approach overclocking sensibly. But if you manually OC, stay below the max PBO/2 v-core F.I.table if possible.
Please add useful comments and screenshots of your stock and PBO FIT voltage to build a database!
Disclaimer:
Not a perfect world. This may or may not work well for you. Some days vary, cooling varies, ambient temps vary, and everyone has their own way of doing things. This is informative only, I & TPUeverything, hold no responsibility if you make mistakes and smoke your CPU. This guide is meant to prevent excessive OV by the user when they may or may not manually overclock or set other values high causing premature failure of the processor.
GLHF!
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