Madpsycho
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Hello, I've recently been looking to overclock my system to help my system run newer titles. I have an i7-3820 clocked in the bios to 4.625 ghz with a cpu multiplier of x44 and bclk at x1.05. However, I found out that CPU-Z says that my CPU is only at x43 and x1.05 with a clock speed of 4.49 ghz. My temps while playing games will sit between 60-70c and is water cooled. Is this a problem with throttling or other settings that I need to change? If there are any screenshots or additional information required that would help, I can provide them later.
post edited by Madpsycho - Sunday, January 01, 2023 5:18 AM
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MhzManiac
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Re: X79 SLI Not Overclocking Past 43 Multiplier
Sunday, January 01, 2023 8:27 AM
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Cpu-Z is reporting current speed. You will have to load the system to see the turbo speed. You may be where you set it in the bios. I wanted to see how on my system how the turbo changed under load and it was showing really low speeds. So I set the clock to 50X multiplier with XMP1 memory timings. CPU-z still showed 47X clock and not 50 even while running Intel Burn test in the background.
post edited by MhzManiac - Sunday, January 01, 2023 9:31 AM
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bob16314
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Re: X79 SLI Not Overclocking Past 43 Multiplier
Sunday, January 01, 2023 12:56 AM
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☼ Best Answerby Madpsycho Sunday, January 01, 2023 7:32 PM
The following is quote OverclockersClub here under the 'Closer Look' section..It says: Another unique feature of the Core i7 3820 is that it is a partially-unlocked chip. What this means is a multiplier that is locked to a maximum of 43x, initially limiting the potential overclock to 4300 MHz while using the default 100 MHz bclock. So I think you've reached the max multiplier limit for that partially-unlocked CPU and any farther overclocking would need to be done through increasing the BCLK frequency.
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Madpsycho
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Re: X79 SLI Not Overclocking Past 43 Multiplier
Sunday, January 01, 2023 7:37 PM
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Thanks for clearing that up! Wasn't aware that the CPU could only be partially overclocked despite the BIOs showing that I can set my CPU multiplier to 44. I now have a stable overclock of 4.6ghz with a 43 multiplier and 1.07 bclk.
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bob16314
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Re: X79 SLI Not Overclocking Past 43 Multiplier
Sunday, January 01, 2023 8:25 PM
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You're welcome..And welcome to the EVGA Forums.
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MhzManiac
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Re: X79 SLI Not Overclocking Past 43 Multiplier
Tuesday, January 03, 2023 5:58 AM
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Quick question Bob, using E-Leet I was able to see all 8 cores at set to turbo at 50X. The ring speed is set at 47X. When I load the system both E-Leet and CPU-z show the ring speed, not the cores, why is that?
That is me in the picture, anyone else ever pet a live Lion?EVGA Z390 FTW (Bios 1.08) i9-9900KF 8 core, 32G Corsair Vengeance LPX Dual Chl 3000 XMP-1 , Intel SSD6 M.2 2TB, Samsung 840 PRO 1TB / 512G SSD, Gigabyte RTX 2080 Super , Win 11 Pro 64, EVGA Supernova 1300 watts, NZXT Phantom 820, Strix Raid DLX 7.1 surround, Corsair H100 Liquid , Dell S2417DG /S2409W / Acer XB241H Predator / Samsung C24F390 Curve/ Oculus Rift S VR
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