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1700 XFR after overclock?

Frenky
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Hi,

 

I got my 1700 OC'ed at 3.9ghz using the power states method, and if you look at the screenshot you can see it reaches up to 4032ghz sometimes on single cores randomly. Is that XFR kicking in even after an overclock, or is that something else? I thought XFR gets disabled after OC'ing. 

 

 

 

image.png.ad90f7d9bc277f8f6e86f0c5b5a79444.png

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https://linustechtips.com/topic/920683-1700-xfr-after-overclock/
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There's a 'spread spectrum' option in Intel systems, not sure if that's also called the same in AMD CPUs. Turn it off.

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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3 minutes ago, Jurrunio said:

There's a 'spread spectrum' option in Intel systems, not sure if that's also called the same in AMD CPUs. Turn it off.

Why? I think it's awesome it reaches over 4ghz, I'm just wondering how. The system is fully stable, tested on a bunch of diff benchmarks

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Just now, Frenky said:

By the way, when I benchmark the system all cores go to 3.9 ghz. So I assume its only single core boosts that go over that

Is it not precision boost coming into effect rather than XFR? 

If someone has helped you out on the forum don't forget to give them a reaction to say thank you!

 

The only true wisdom is in knowing you know nothing. - Socrates
 

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No worries dude, also have you disabled cool 'n' quiet? 

If someone has helped you out on the forum don't forget to give them a reaction to say thank you!

 

The only true wisdom is in knowing you know nothing. - Socrates
 

Please put as much effort into your question as you expect me to put into answering it. 

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It's basically Dynamic Frequency Scaling, Usually disabling it helps with stability with OC'in 

If someone has helped you out on the forum don't forget to give them a reaction to say thank you!

 

The only true wisdom is in knowing you know nothing. - Socrates
 

Please put as much effort into your question as you expect me to put into answering it. 

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11 minutes ago, Frenky said:

Why? I think it's awesome it reaches over 4ghz, I'm just wondering how. The system is fully stable, tested on a bunch of diff benchmarks

spread spectrum makes the clock jump around, so it's possible to reach a higher clock.

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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2 minutes ago, Jurrunio said:

spread spectrum makes the clock jump around, so it's possible to reach a higher clock.

 

I thought MCE replaced spread spectrum on intel processors? 

If someone has helped you out on the forum don't forget to give them a reaction to say thank you!

 

The only true wisdom is in knowing you know nothing. - Socrates
 

Please put as much effort into your question as you expect me to put into answering it. 

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1 hour ago, Ben Quigley said:

 

I thought MCE replaced spread spectrum on intel processors? 

they are two different stuff. MCE overclocks the CPU's all core frequency to that of the single core turbo clock, while spread spectrum bounces the BCLK between 99MHz and 101MHz to prevent interference.

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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1 minute ago, Jurrunio said:

they are two different stuff. MCE overclocks the CPU's all core frequency to that of the single core turbo clock, while spread spectrum bounces the BCLK between 99MHz and 101MHz to prevent interference.

ahh, Thanks for that

If someone has helped you out on the forum don't forget to give them a reaction to say thank you!

 

The only true wisdom is in knowing you know nothing. - Socrates
 

Please put as much effort into your question as you expect me to put into answering it. 

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