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P751TM-G i9 9900k Upgrade questions


fricknbot
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So i am upgrading my i7-8700k to a i9 9900k and i was wondering if there is much i need to change for the power limits and overclocking / undervolting for my new CPU. I know i am most likely going to try and clock the new CPU higher but are their any other things i need to change apart from the voltage and clock multipliers?

Clevo P751TM-G / i7-8700K OC 4.8GHz Undervolted -100mV / RTX 2070 / 32GB DDR4 @ 2933Mhz

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13 minutes ago, razor0601 said:

Don‘t try to overclock the 9900k. The P751tm is at it’s cooling limits with this CPU. 

 

So what max clock should I aim for, would 4.9 / 5 GHz on 1 core be ok?

Clevo P751TM-G / i7-8700K OC 4.8GHz Undervolted -100mV / RTX 2070 / 32GB DDR4 @ 2933Mhz

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1 hour ago, fricknbot said:

 

So what max clock should I aim for, would 4.9 / 5 GHz on 1 core be ok?

 

im in a similar situation, upgraded my initial 6700K to 7700K and then to my current 9900K. iirc the TM had stronger CPU VRMs on the mobo, so juice-wise ull likely be able to clock higher than me. at the same time though, i have a SiliconLottery binned chip thats in the top 5% of all 9900K so less voltage needed to reach certain multis.

 

one core u can basically go as far as the silicon lets you, u just need to ensure that the applied voltage offset is also stable at the higher core count multis.

 

the max settings i could achieve wattage and thermal wise were the following, at -100mV offset:

1C = 50x

2-3C = 48x

4-5C = 47x

6C = 46x

7C = 44x

8C = 42x

 

note that these settings are for everyday usage, including hot summer days and heavy loads with AVX enabled. so fire and forget, basically. based on testing, i was able to run up to 46x all cores on medium to heavy-ish loads without AVX, gaming could potentially be even higher.

 

so depending on

- your ambient temps

- your cooling capabilities (i.e. thermal paste, liquid metal, delid, copper IHS, etc.)

- your chip quality (UV stability)

- VRMs (max wattage possible before your mobo gives out)

- usage pattern (AVX, non-AVX or gaming only)

 

u will see significantly different results.

 

best thing to do: get to know your specific chip and its limits in your particular machine with the applications u most use. its a journey! 🙂 

Mine: Hyperion "Titan God of Heat, Heavenly Light, Power" (2022)
AMD Ryzen 9 7950X / Asus ROG Crosshair X670E Extreme / MSI Geforce RTX 4090 Suprim X / G.Skill Trident Z5 RGB DDR5-6600 2x16 GB / Seagate Firecuda 530 4 TB / 2x Samsung 860 Evo 4 TB / Arctic Liquid Freezer II 420 / Seasonic TX-1600 W Titanium / Phanteks Enthoo Pro 2 TG / Samsung Odyssey Neo G8 32" UHD 240 Hz / Ducky One 3 Daybreak Fullsize Cherry MX Brown / Corsair M65 Ultra RGB

 

My Lady's: Clevo NH55JNNQ "Alfred" (2022)
Sharp LQ156M1JW03 FHD matte 15.6" IGZO 8 bit @248 Hz / Intel 12600 @ 4.4 - 4.8 Ghz / Nvidia 3070 Ti 8 GB GDDR6 / G.Skill 16 GB DDR4-3800 / Samsung 970 Pro 1 TB / Intel AX201 ax+BT / Win 11 Pro Phoenix Lite OS / 230 W PSU powered by Prema Mod!

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Just now, jaybee83 said:

 

im in a similar situation, upgraded my initial 6700K to 7700K and then to my current 9900K. iirc the TM had stronger CPU VRMs on the mobo, so juice-wise ull likely be able to clock higher than me. at the same time though, i have a SiliconLottery binned chip thats in the top 5% of all 9900K so less voltage needed to reach certain multis.

 

one core u can basically go as far as the silicon lets you, u just need to ensure that the applied voltage offset is also stable at the higher core count multis.

 

the max settings i could achieve wattage and thermal wise were the following, at -100mV offset:

1C = 50x

2-3C = 48x

4-5C = 47x

6C = 46x

7C = 44x

8C = 42x

 

note that these settings are for everyday usage, including hot summer days and heavy loads with AVX enabled. so fire and forget, basically. based on testing, i was able to run up to 46x all cores on medium to heavy-ish loads without AVX, gaming could potentially be even higher.

 

so depending on

- your ambient temps

- your cooling capabilities (i.e. thermal paste, liquid metal, delid, copper IHS, etc.)

- your chip quality (UV stability)

- VRMs (max wattage possible before your mobo gives out)

- usage pattern (AVX, non-AVX or gaming only)

 

u will see significantly different results.

 

best thing to do: get to know your specific chip and its limits in your particular machine with the applications u most use. its a journey! 🙂 

Thanks dude, that helps alot I've run into a larger error where the power indicator is flashing orange when I try and boot the pc, no image displaying at all. I have tried booting with 1 stick of ram but it still doesn't post all that happens is that the power light flashes and the fans go to max any help?!

 

Clevo P751TM-G / i7-8700K OC 4.8GHz Undervolted -100mV / RTX 2070 / 32GB DDR4 @ 2933Mhz

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2 minutes ago, fricknbot said:

Thanks dude, that helps alot I've run into a larger error where the power indicator is flashing orange when I try and boot the pc, no image displaying at all. I have tried booting with 1 stick of ram but it still doesn't post all that happens is that the power light flashes and the fans go to max any help?!

 

have u gotten the 9900K to boot at all yet in your machine? or is that still with ur old cpu?

 

if its with the 9900K and u havent gotten it to work at all, swap back the old cpu and update ur bios & EC to the newest versions. if its with ur old cpu, take out RAM, battery, power cable and the CMOS battery, then keep the power button pressed for 20 seconds, reassemble and try again. thatll reset ur bios, NVRAM and EC to default values in case u made some non-booting changes.

Mine: Hyperion "Titan God of Heat, Heavenly Light, Power" (2022)
AMD Ryzen 9 7950X / Asus ROG Crosshair X670E Extreme / MSI Geforce RTX 4090 Suprim X / G.Skill Trident Z5 RGB DDR5-6600 2x16 GB / Seagate Firecuda 530 4 TB / 2x Samsung 860 Evo 4 TB / Arctic Liquid Freezer II 420 / Seasonic TX-1600 W Titanium / Phanteks Enthoo Pro 2 TG / Samsung Odyssey Neo G8 32" UHD 240 Hz / Ducky One 3 Daybreak Fullsize Cherry MX Brown / Corsair M65 Ultra RGB

 

My Lady's: Clevo NH55JNNQ "Alfred" (2022)
Sharp LQ156M1JW03 FHD matte 15.6" IGZO 8 bit @248 Hz / Intel 12600 @ 4.4 - 4.8 Ghz / Nvidia 3070 Ti 8 GB GDDR6 / G.Skill 16 GB DDR4-3800 / Samsung 970 Pro 1 TB / Intel AX201 ax+BT / Win 11 Pro Phoenix Lite OS / 230 W PSU powered by Prema Mod!

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1 minute ago, jaybee83 said:

have u gotten the 9900K to boot at all yet in your machine? or is that still with ur old cpu?

 

if its with the 9900K and u havent gotten it to work at all, swap back the old cpu and update ur bios & EC to the newest versions. if its with ur old cpu, take out RAM, battery, power cable and the CMOS battery, then keep the power button pressed for 20 seconds, reassemble and try again. thatll reset ur bios, NVRAM and EC to default values in case u made some non-booting changes.

My bios and ec are on the latest already I tried a CMOS reset but I didn't know I had to hold the power button

Clevo P751TM-G / i7-8700K OC 4.8GHz Undervolted -100mV / RTX 2070 / 32GB DDR4 @ 2933Mhz

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28 minutes ago, fricknbot said:

My bios and ec are on the latest already I tried a CMOS reset but I didn't know I had to hold the power button

it can sometimes take a bit of time until the capacitors are fully drained of all power.

 

also, be aware that after a cmos pull the first boot takes a lot of time, let it sit for at least 5-10 minutes to make absolutely sure it does not boot.

 

so i assume ure trying to boot with the 9900K? has it successfully booted before in your machine?

Mine: Hyperion "Titan God of Heat, Heavenly Light, Power" (2022)
AMD Ryzen 9 7950X / Asus ROG Crosshair X670E Extreme / MSI Geforce RTX 4090 Suprim X / G.Skill Trident Z5 RGB DDR5-6600 2x16 GB / Seagate Firecuda 530 4 TB / 2x Samsung 860 Evo 4 TB / Arctic Liquid Freezer II 420 / Seasonic TX-1600 W Titanium / Phanteks Enthoo Pro 2 TG / Samsung Odyssey Neo G8 32" UHD 240 Hz / Ducky One 3 Daybreak Fullsize Cherry MX Brown / Corsair M65 Ultra RGB

 

My Lady's: Clevo NH55JNNQ "Alfred" (2022)
Sharp LQ156M1JW03 FHD matte 15.6" IGZO 8 bit @248 Hz / Intel 12600 @ 4.4 - 4.8 Ghz / Nvidia 3070 Ti 8 GB GDDR6 / G.Skill 16 GB DDR4-3800 / Samsung 970 Pro 1 TB / Intel AX201 ax+BT / Win 11 Pro Phoenix Lite OS / 230 W PSU powered by Prema Mod!

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21 minutes ago, jaybee83 said:

it can sometimes take a bit of time until the capacitors are fully drained of all power.

 

also, be aware that after a cmos pull the first boot takes a lot of time, let it sit for at least 5-10 minutes to make absolutely sure it does not boot.

 

so i assume ure trying to boot with the 9900K? has it successfully booted before in your machine?

No I haven't managed to get a success full boot with it yet, I bought it from my work and had to go in and so I refunded it, but I will most likely try purchasing again and trying it out with your advice. The i7 8700k worked perfectly fine this morning so I recon it's just due to me being in a rush and not doing things 100%

 

Clevo P751TM-G / i7-8700K OC 4.8GHz Undervolted -100mV / RTX 2070 / 32GB DDR4 @ 2933Mhz

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1 minute ago, fricknbot said:

No I haven't managed to get a success full boot with it yet, I bought it from my work and had to go in and so I refunded it, but I will most likely try purchasing again and trying it out with your advice. The i7 8700k worked perfectly fine this morning so I recon it's just due to me being in a rush and not doing things 100%

 

 

take ur time, such things better not be rushed 🙂 im not sure if the TM stock bios already implemented support for CFL-R or if u actually need a modded bios for that. but first things first, lets cross that bridge when we get there. as plan B u might still be able to flash Dsanke bios for proper support.

Mine: Hyperion "Titan God of Heat, Heavenly Light, Power" (2022)
AMD Ryzen 9 7950X / Asus ROG Crosshair X670E Extreme / MSI Geforce RTX 4090 Suprim X / G.Skill Trident Z5 RGB DDR5-6600 2x16 GB / Seagate Firecuda 530 4 TB / 2x Samsung 860 Evo 4 TB / Arctic Liquid Freezer II 420 / Seasonic TX-1600 W Titanium / Phanteks Enthoo Pro 2 TG / Samsung Odyssey Neo G8 32" UHD 240 Hz / Ducky One 3 Daybreak Fullsize Cherry MX Brown / Corsair M65 Ultra RGB

 

My Lady's: Clevo NH55JNNQ "Alfred" (2022)
Sharp LQ156M1JW03 FHD matte 15.6" IGZO 8 bit @248 Hz / Intel 12600 @ 4.4 - 4.8 Ghz / Nvidia 3070 Ti 8 GB GDDR6 / G.Skill 16 GB DDR4-3800 / Samsung 970 Pro 1 TB / Intel AX201 ax+BT / Win 11 Pro Phoenix Lite OS / 230 W PSU powered by Prema Mod!

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1 hour ago, jaybee83 said:

 

take ur time, such things better not be rushed 🙂 im not sure if the TM stock bios already implemented support for CFL-R or if u actually need a modded bios for that. but first things first, lets cross that bridge when we get there. as plan B u might still be able to flash Dsanke bios for proper support.

Yeah I meant to take my time with it but external circumstances didn't really allow me to, I'm going to have to wait for the refund to come in and then re purchase the CPU if it doesn't sell

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Clevo P751TM-G / i7-8700K OC 4.8GHz Undervolted -100mV / RTX 2070 / 32GB DDR4 @ 2933Mhz

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I dont remember exactly anymore but when i went to the 9900k from the old 8700k i needed to reset the cmos like two times and also take the battery out, drained and back again, there was a little bit of a hassle for sure.

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Lian Li O11Dynamic EVO MSI MPG B650 Edge Wifi AMD Ryzen 9 7900x Lian Li Galahad 360 V2 Zotac 4090 AMP Extreme Airo 32GB Kingston Renegade RGB Z 6000ghz SSD: Kingston KC3000 2TB, 2x Samsung 970 Evo 1TB Corsair HX1500i Samsung Odyssey G9 Neo

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52 minutes ago, cylix said:

I dont remember exactly anymore but when i went to the 9900k from the old 8700k i needed to reset the cmos like two times and also take the battery out, drained and back again, there was a little bit of a hassle for sure.

Thanks ill try it again soon and let you know how it goes!

Clevo P751TM-G / i7-8700K OC 4.8GHz Undervolted -100mV / RTX 2070 / 32GB DDR4 @ 2933Mhz

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9 hours ago, fricknbot said:

Thanks ill try it again soon and let you know how it goes!

 

kool, keep us updated 🙂 

Mine: Hyperion "Titan God of Heat, Heavenly Light, Power" (2022)
AMD Ryzen 9 7950X / Asus ROG Crosshair X670E Extreme / MSI Geforce RTX 4090 Suprim X / G.Skill Trident Z5 RGB DDR5-6600 2x16 GB / Seagate Firecuda 530 4 TB / 2x Samsung 860 Evo 4 TB / Arctic Liquid Freezer II 420 / Seasonic TX-1600 W Titanium / Phanteks Enthoo Pro 2 TG / Samsung Odyssey Neo G8 32" UHD 240 Hz / Ducky One 3 Daybreak Fullsize Cherry MX Brown / Corsair M65 Ultra RGB

 

My Lady's: Clevo NH55JNNQ "Alfred" (2022)
Sharp LQ156M1JW03 FHD matte 15.6" IGZO 8 bit @248 Hz / Intel 12600 @ 4.4 - 4.8 Ghz / Nvidia 3070 Ti 8 GB GDDR6 / G.Skill 16 GB DDR4-3800 / Samsung 970 Pro 1 TB / Intel AX201 ax+BT / Win 11 Pro Phoenix Lite OS / 230 W PSU powered by Prema Mod!

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On 8/25/2022 at 6:08 AM, jaybee83 said:

 

kool, keep us updated 🙂 

 

On 8/24/2022 at 7:43 PM, cylix said:

I dont remember exactly anymore but when i went to the 9900k from the old 8700k i needed to reset the cmos like two times and also take the battery out, drained and back again, there was a little bit of a hassle for sure.

 

Alright I'm really stuck now, I've tried CMOS resetting 3 times and still no luck I can't flash the dsanke bios since I don't have the old CPU anymore and I'm not confident with flashing at all anyone got any ideas?

 

Clevo P751TM-G / i7-8700K OC 4.8GHz Undervolted -100mV / RTX 2070 / 32GB DDR4 @ 2933Mhz

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30 minutes ago, fricknbot said:

 

 

Alright I'm really stuck now, I've tried CMOS resetting 3 times and still no luck I can't flash the dsanke bios since I don't have the old CPU anymore and I'm not confident with flashing at all anyone got any ideas?

 

Only a programmer will save you.

PC Specialist P870DM-G ALIENKILLER | i9-9900K 4.6 Ghz on all cores (-90 mv undervolted) | 32GB Hyper X Black 2666MHz | Clevo GTX 1080 3.1b undervolted for better temp 1860Mhz @875 mv | AUO B173HAN03.1 144hz Gsync | Samsung 980 NVME | 1TB SABRENT NVME | 2 TB SAMSUNG QVO SSD | Dsanke TM BIOS | Network Card: Intel AX210-AX | Windows 10 Pro x64

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2 minutes ago, runix18 said:

Only a programmer will save you.

Unless anyone has some clear instructions on how to flash the bios be sure that's mostly why I struggle, I can't find any resources to teach me how.

 

I'm not sure how I managed to originally and the dsanke bios I downloaded only comes with the rom and doesn't have all the other bits for the dos usb boot that I need

Clevo P751TM-G / i7-8700K OC 4.8GHz Undervolted -100mV / RTX 2070 / 32GB DDR4 @ 2933Mhz

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Also follow this tutorial for the Ch43a programmer. Software + drivers use this.

 

Unfortunately I do not know where the bios chip is located on the mobo, maybe somebody else can help with an image.

 

 

 

PC Specialist P870DM-G ALIENKILLER | i9-9900K 4.6 Ghz on all cores (-90 mv undervolted) | 32GB Hyper X Black 2666MHz | Clevo GTX 1080 3.1b undervolted for better temp 1860Mhz @875 mv | AUO B173HAN03.1 144hz Gsync | Samsung 980 NVME | 1TB SABRENT NVME | 2 TB SAMSUNG QVO SSD | Dsanke TM BIOS | Network Card: Intel AX210-AX | Windows 10 Pro x64

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47 minutes ago, runix18 said:

Also follow this tutorial for the Ch43a programmer. Software + drivers use this.

 

Unfortunately I do not know where the bios chip is located on the mobo, maybe somebody else can help with an image.

 

 

 

Thank you for the instructions!!

 

I think this is the original post i used to flash the new bios from CLEVO PC. 

I think i'll stay on this one for now as i have gotten back my old processor and refunded the old one 😕 although the 8700k is still a beast so im not too upset.

 

If i decide to upgrade the bios in the future ill let you guys know how it goes!

Clevo P751TM-G / i7-8700K OC 4.8GHz Undervolted -100mV / RTX 2070 / 32GB DDR4 @ 2933Mhz

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This is strange, im also on the latest clevo official bios and the 9900k is working with it. Did u try the 9900k in a desktop to see if its working? Maybe the CPU is defective.

Lian Li O11Dynamic EVO MSI MPG B650 Edge Wifi AMD Ryzen 9 7900x Lian Li Galahad 360 V2 Zotac 4090 AMP Extreme Airo 32GB Kingston Renegade RGB Z 6000ghz SSD: Kingston KC3000 2TB, 2x Samsung 970 Evo 1TB Corsair HX1500i Samsung Odyssey G9 Neo

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2 hours ago, fricknbot said:

Thank you for the instructions!!

 

I think this is the original post i used to flash the new bios from CLEVO PC. 

I think i'll stay on this one for now as i have gotten back my old processor and refunded the old one 😕 although the 8700k is still a beast so im not too upset.

 

If i decide to upgrade the bios in the future ill let you guys know how it goes!

Tbh, you are better of with de lidding the 8700k, liquid metal and OC the sucker to almost 5Ghz. 

PC Specialist P870DM-G ALIENKILLER | i9-9900K 4.6 Ghz on all cores (-90 mv undervolted) | 32GB Hyper X Black 2666MHz | Clevo GTX 1080 3.1b undervolted for better temp 1860Mhz @875 mv | AUO B173HAN03.1 144hz Gsync | Samsung 980 NVME | 1TB SABRENT NVME | 2 TB SAMSUNG QVO SSD | Dsanke TM BIOS | Network Card: Intel AX210-AX | Windows 10 Pro x64

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