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i5 7400 overclocking possible on Maximus VIII Ranger?

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Hello all. This is for my old system which used to have an i5 7600K and an ASUS Maximus VIII Ranger (Z170) - BIOS updated for Kaby Lake chips. The i5 7600K has a faulty memory controller and none of the slots of channel A work. I have tested the board with my friend's 6600K and all the slots work perfectly.
I am planning to buy an used i5 7400 for a pretty decent price of 6000 INR and have been wondering whether it will be possible to overclock that using the BCLK. Any help is appreciated.
 
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Overclocking locked cpus was a thing, but only on skylake chips. With this one you won't get past 103MHz bclk.
But, you can still OC the memory.
 
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Overclocking locked cpus was a thing, but only on skylake chips. With this one you won't get past 103MHz bclk.
But, you can still OC the memory.
Thanks for the input. Now here's the thing. To simulate a i5 7400, I fixed the multiplier of my 7600K to 35 and tried overclocking using the BCLK. It has been an excellent chip and I know it goes up to 5.2 GHz with the multiplier. And I was able to overclock the BCLK to as high as 145.5 MHz (didn't go higher). Screenshot below:

1610962185398.png


CPU-Z Validation:

Intel Core i5 7600 @ 5093.62 MHz - CPU-Z VALIDATOR (x86.fr)

The reason for this as far as I know is the Maximus VIII Ranger has a separate clock which allows overclocking even up to 450 MHz.
Now I am not sure if an i5 7400 is any different but I think they are basically the same chip having exactly the same architecture.
Correct me if I am wrong.
 
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The non-K cpus have a "kill-switch" that activates when the bclk is above 103MHz.
K cpus do not have that, and allow legitimate overclock via BCLK.

A workaround has been found for this "feature", but only on skylake cpus, and required modified bioses. No such thing has been found for kaby lake, tho. It has been patched by intel for good.
 
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Benchmark Scores Cinebench R20 MT - 4200, ST 537 | R20 MT - 1979, ST - 516
The non-K cpus have a "kill-switch" that activates when the bclk is above 103MHz.
K cpus do not have that, and allow legitimate overclock via BCLK.

A workaround has been found for this "feature", but only on skylake cpus, and required modified bioses. No such thing has been found for kaby lake, tho. It has been patched by intel for good.
Okay. My bad. I guess I will then have to stick with stock clocks with overclocked memory.
Nevertheless, what do you suggest?
Faulty i5 7600K with all cores at 5.0 GHz with single channel memory
vs
Good i5 7400 at stock with dual channel memory?
Just wanted to have a backup gaming system since I got the motherboard as prize from ASUS from ASUS OC India tour.
 
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Can't you get a used i7 6700K or i7 7700K?
 
Joined
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System Name Ryzen | Kaby
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Motherboard ASUS B550 ROG Strix F Gaming | ASUS Maximus VIII Ranger
Cooling Cooler Master ML120L RGB | Cooler Master Seidon 120V
Memory 4*8 GB (32 GB) Kingston HyperX Fury @3266 MHz 16-16-16-35 2T | 2*8 GB DDR4 @ 3100 MHz
Video Card(s) Galax RTX 2060 Super 8 GB | Zotac GTX 1660Ti AMP 6 GB
Storage Kingston A2000 500 GB. HyperX 3K 240 GB, WD10EARS, ST2000DM006 | HyperX Fury 240 GB + 500 GB HDD
Display(s) Dell S2418H, 1080p 75 Hz, HDR | Samsung FHD TV
Case Lianli Lancool 215 | Corsair 100R
Audio Device(s) Realtek S1220 (Supreme FX) | Realtek ALC1150 (Supreme FX)
Power Supply Corsair CS750M | Dead PSU (replacement on the way)
Mouse Cooler Master Storm Devastator
Keyboard Cooler Master Storm Devastator
Software Windows 10 Pro x64 |Windows 10 Pro x64
Benchmark Scores Cinebench R20 MT - 4200, ST 537 | R20 MT - 1979, ST - 516
Can't you get a used i7 6700K or i7 7700K?
Not getting for a good price. People are selling them for like 13000 to 14000 INR used which is the cost for a Ryzen 5 3500 or 3500X. :(
 
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