Need Help on Pentium G3258 Overclock!

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Billspear

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Sep 26, 2014
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I am new to PC and overclocking.

I manually overclocked my Pentium to 4.0GHz in my UEFI BIOS following an in-depth guide on overclocking on my Gigabyte GA-H81M-DS2V motherboard. My PC is booting up fine and is running well after Prime45 stress tests and my CPU temperature in RealTemp is NOT exceeding 60 degrees celcius on Intel's stock cooler. (Is that OK?)

However, in CPU-Z, it is showing my CPU Core Speed as 3192.38MHz (Stock speed). Why is this happening? Shouldn't it show 4000MHz? I'm concerned because my temps are almost twice as high as before even though it doesn't show my overclock in CPU-Z.

Edit: In my BIOS I:

-I changed the CPU PLL Selection to SBPLL
-I set the Uncore Ratio 100MHz lower than the Clock Ratio
-I set the Turbo Power Limit and Core Current Limit to around 120-150 each
-I set the CPU vRIN External to 1.800v
-I set the CPU vCore to Normal
-I set the CPU vCore Offset to +0.100v
-I changed the CPU Ring Voltage to Normal
-I set the CPU Ring Voltage Offset to +0.100v

Was any of this necessary to overclock to 4.0GHz? I will not go past this speed unless I get a CPU cooler.
 
Solution
Kaliz
- leave the CPU PLL to auto
- Set Uncore 300MHz lower as Core clock
- Leave the current limits on auto
- CPU VRIN is stock 1,800 thats ok
-Vcore on auto
- Dont use voltage offsets

Leave the Core multiplier Auto, change the Turbo multiplier instead
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Kaliz

Kaliz

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May 11, 2014
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- leave the CPU PLL to auto
- Set Uncore 300MHz lower as Core clock
- Leave the current limits on auto
- CPU VRIN is stock 1,800 thats ok
-Vcore on auto
- Dont use voltage offsets

Leave the Core multiplier Auto, change the Turbo multiplier instead
 
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Billspear

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Sep 26, 2014
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Thank you!

I still have a concern. In CPU-Z, it is showing my CPU Core Speed as 3192.38MHz (Stock speed). Why is this happening? Shouldn't it show 4000MHz? I'm concerned because my temps are almost twice as high as before even though it doesn't show my overclock in CPU-Z.

Also, I'm averaging 57-58 degrees on stock Intel cooler. Is this OK?


 
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Kaliz

Kaliz

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I have a G3258 Core 4700 Uncore 4400 atm.
Settings are easy: only thing changed are Turbo multiplier to 47 and uncore ratio to 44. All the voltages are Auto, and i even use the powersaving features. Max temp with Prime95 Blend 72C, i use a AiO watercooling set from CoolerMaster.
 
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Billspear

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Sep 26, 2014
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I downloaded that program and tested it. I have no idea why it says my CPU cores is 3200MHz still even though in my BIOS it says 4.00GHz. I set the Uncore 300MHz lower like you suggested as well and optimized all other settings in BIOS.

When monitoring my CPU, it dips to 800MHz when idle and appears as if it maxes out at 3200MHz. I don't get it.

 
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Billspear

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Sep 26, 2014
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Ahh, ok. I'm such a newb at this, sorry.

Do you know what it would be called in a Gigabyte BIOS? Is it Intel Turbo Boost Technology? Is that what I need to crank up to 40 to achieve 4.0GHz?
 
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Billspear

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I enabled Turno Boost and set both cores to 40 and it still says 3200MHz and x32 multiplier when I check in software. Here are pics of BIOS settings:

http://i.imgur.com/7KJPTGi.jpg
http://i.imgur.com/HKP0NyG.jpg

I should probably give up at this point lol Idk what the problem is.

 
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Billspear

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I usually use it in standard mode but chose to take a pic in the default mode lol

And I changed the clock ratio back to auto and left the turbo on 40 and it still isn't showing in software...Either my CPU hates me or it's just not meant to be overclocked...

The BIOS is F4. I heard that it could be done in F4 but maybe I should flash it to F5 to see if it helps.

And I can't thank you enough for taking all of the time to help.
 
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Kaliz

Kaliz

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I am using F5 for my G3258 with a similar gigabyte mobo, you can try that , on your own risk. Flashing BIOS is one thing you dont wanna mess up.
No problem at all mate, tweaking the G3258 is one of my hobbies!
 
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Billspear

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Sep 26, 2014
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Yeah, I'd rather not unless I absolutely have to. F5 bios says "Improves intel K-CPU performance".

Do you know if your overclock worked on F4? It's so frustrating because I though I've been doing everything right...I'm starting to think CPU-Z and hwinfo64 are lying to me about the clock frequency haha

Edit: I'll check out your link! I don't know Dutch but hopefully I can translate it! Thanks!
 
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Billspear

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Ah, ok. I'll give it a try. And may I ask how you like the GTX 750 performance with your Pentium G3258? I don't have a GPU yet and I was thinking about getting the same setup as you! Maybe a 750 ti Superclocked. Hopefully it performs okay for most games.
 
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Kaliz

Kaliz

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The GTX750 playsmost AAA titles on medium / high settings and is a great card for the Pentium! The ti version has 2GB VRAM and performance is great. I also have the R7 260X and i like the GTX750 better, its cool , queit and cheap!
 
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