4.4 GHz All-core OC on Ryzen 7 3800X @ 1.28 V

[jGD]

In September, I built an AMD Based PC. Specs are at the end.

 

- Using the AMD Wraith Prism Cooler is OK, if you want to use stock settings from your BIOS for Auto PBO. I don't recommend it for any serious overclocks. Max stable OC was 4.4 GHz at 1.3625 V and temps were usually at 95 deg C. Got a Cinebench R20 score of 5233.

- Last night, I installed the new LTT Edition chromax.black NH-D15 from Noctua, and today, I was able to get temps down to 75 deg C with no other changes. 

 

- Tonight, I tried undervolting, and was able to maintain a stable overclock at 4.4 GHz, 1.281 V on VCore, and max temp during Cinebench R20 of 70.3 deg C. Got a Cinebench R20 score of 5232. Only one point decrease from the stock cooler, but 25 deg C cooler...

 

Has anyone else found similar results? 

 

 

Also, my max core speed registered during testing was 4.525 GHz on about 4 cores, and the rest maxed out at 4.475 GHz. seems I got a pretty good piece of silicon!

 

Corsair Crystal Series 460X Case (total of 4 installed Corsair SP210 Fans)

MSI MPG Gaming Edge Wifi Motherboard

Corsair HX750 750W Fully Modular Power Supply

AMD Ryzen 7 3800X CPU

G.Skill Trident Z Neo DDR-4 3600 MHz CL18 RAM

Asrock Radeon RX 5700 Graphics Card (Vbios flashed for the XT model, TOTALLY WORTH IT!!!) Running at with Gen 4 x16 in BIOS settings and getting 24.6 GB/s up, 49.2 GB/s total.

Crucial MX500 SATA III M.2 B+M Key SSD

Sabrent M.2 Heatsink

UPGRADE: LTT Edition of the Noctua chromax.black NH-D15 cooler/fans (second fan installed in ceiling blowing down on heatsink and RAM, due to RAM height).

 

 

[ddennis002]

18 minutes ago, jGD said:

In September, I built an AMD Based PC. Specs are at the end.

 

- Using the AMD Wraith Prism Cooler is OK, if you want to use stock settings from your BIOS for Auto PBO. I don't recommend it for any serious overclocks. Max stable OC was 4.4 GHz at 1.3625 V and temps were usually at 95 deg C. Got a Cinebench R20 score of 5233.

- Last night, I installed the new LTT Edition chromax.black NH-D15 from Noctua, and today, I was able to get temps down to 75 deg C with no other changes. 

 

- Tonight, I tried undervolting, and was able to maintain a stable overclock at 4.4 GHz, 1.281 V on VCore, and max temp during Cinebench R20 of 70.3 deg C. Got a Cinebench R20 score of 5232. Only one point decrease from the stock cooler, but 25 deg C cooler...

 

Has anyone else found similar results? 

 

 

 

Also, my max core speed registered during testing was 4.525 GHz on about 4 cores, and the rest maxed out at 4.475 GHz. seems I got a pretty good piece of silicon!

 

Corsair Crystal Series 460X Case (total of 4 installed Corsair SP210 Fans)

MSI MPG Gaming Edge Wifi Motherboard

Corsair HX750 750W Fully Modular Power Supply

AMD Ryzen 7 3800X CPU

G.Skill Trident Z Neo DDR-4 3600 MHz CL18 RAM

Asrock Radeon RX 5700 Graphics Card (Vbios flashed for the XT model, TOTALLY WORTH IT!!!) Running at with Gen 4 x16 in BIOS settings and getting 24.6 GB/s up, 49.2 GB/s total.

Crucial MX500 SATA III M.2 B+M Key SSD

Sabrent M.2 Heatsink

UPGRADE: LTT Edition of the Noctua chromax.black NH-D15 cooler/fans (second fan installed in ceiling blowing down on heatsink and RAM, due to RAM height).

 

 

I cannot say anything on 3rd gen ryzen but, my 2700x with PBO would spike 1.5v at 75c under full custom loop and would hit single core speeds of 4.5Ghz and all core 4Ghz.

When I put a offset core voltage to -0.093V I dropped temps down to max 65c and I could achieve 4.2Ghz all core boost with PBO and single core speeds still hit 4.5Ghz.

So what your doing is pretty typical, I treat Ryzen how I treat Nvidia GPU the cooler the chip the higher the clocks.

[Deli]

Wow, you got one hell of a good 3800x. My 3900x need 1.38v for 4.3GHz. And it's cooking hot.

 

Try if you can make it 4.5GHz stable overclock.

[GamerDude]

24 minutes ago, Deli said:

Wow, you got one hell of a good 3800x. My 3900x need 1.38v for 4.3GHz. And it's cooking hot.

 

Try if you can make it 4.5GHz stable overclock.

I have my OC'ed to 4.475Ghz with 1.3625v, idles at about 38C or thereabout. Actually had it at 4.475Ghz at 1.35v, played nice with some games, but Gears 5 caused a freeze and CTD, upped it to 1.3625v and Gears 5 plays just fine now.

 

The reason, I think, why 3800X OC's well enough at lower voltages is due to them being binned 3700X, with greater headroom for OC.

[jGD]

59 minutes ago, Deli said:

Wow, you got one hell of a good 3800x. My 3900x need 1.38v for 4.3GHz. And it's cooking hot.

 

Try if you can make it 4.5GHz stable overclock.

 

I have tried multiple times for 4.5 GHz and so far, I haven't been stable. I haven't tried it with the new cooler in it yet. I'll make an attempt tomorrow night after work. With the reduction in Temps I'm seeing, I wouldn't be surprised if I could pull it off. I just wonder if my lowest max core speed of 4.475 GHz that I have seen so far, will hold me back...

[Majorpayne]

On 10/16/2019 at 10:50 PM, jGD said:

 

I have tried multiple times for 4.5 GHz and so far, I haven't been stable. I haven't tried it with the new cooler in it yet. I'll make an attempt tomorrow night after work. With the reduction in Temps I'm seeing, I wouldn't be surprised if I could pull it off. I just wonder if my lowest max core speed of 4.475 GHz that I have seen so far, will hold me back...

I know this is a old thread but did you follow a guide? I'm new to AMD