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Reference Clock Over Clocking

Imitheos
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I'm trying to squeeze the most performance I possibly can out of my chip, an i5-9400f, not being overclockable, by traditional means that is, I've turned up the power limit, and messed with some turbo boost settings through Intel XTU, but I saw the Reference Clock slider, and began wondering. Is this the same as base clock? What hardware will it affect? Is it safe? Should I stick to specific increments? If anyone has information on this issue, or other tips about overclocking a non-k CPU through Intel XTU, I'd be thankful to hear them.

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8 minutes ago, Imitheos said:

Is this the same as base clock?

by XTU naming, yes.

 

8 minutes ago, Imitheos said:

or other tips about overclocking a non-k CPU through Intel XTU,

last time I tried. it didnt worl. Is this a Z board?

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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21 hours ago, Jurrunio said:

Last time I tried. it didnt worl. Is this a Z board?

My board is an MSI MPG Z390. I went ahead and tinkered with the Reference Clock, and was able to get it up to 102.7 MHz stable. It does seem to have increased my ram speed, but I've achieved an extra 50 marks or so on XTU's benchmark. After trying to over volt to see if I could achieve a higher clock, XTU reported current throttling. What would be a safe current limit in my case? I have a Thermaltake 750W power supply of that means anything. Also, is an extra 1 volt too much? (Offset, I can't change the base voltage.) Everything seems stable, other than the current limit, I'm still achieving sub 80°c. 

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4 minutes ago, Imitheos said:

XTU reported current throttling. What would be a safe current limit in my case?

Just max that out, your CPU wont pull more than needed current anyway

 

4 minutes ago, Imitheos said:

Also, is an extra 1 volt too much?

Of course. Max for overclocking is like 1.4V, most boards give you 1.2V or higher when stock already. 

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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What voltage does the i5-9400f run at stock? With an offset of .7V I wasn't able to achieve even a .1Mhz bumb, so I don't think I'd be able to with anything less. I might as well just leave it at stock then right? Or is there something else I should try? My BIOS doesn't have a Maximum or Minimum for CPU Current, what should I put in? Thanks.

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