How to stop CPU from downclocking to 4.3ghz with avx instructions

[Imapancake22]

Using a Ryzen 7 7800x3d and whenever I start prime95 smallest fft it downclocks to 4.7ghz almost instantly. My temps aren't an issue so is there a way to stop it from doing this?

[freeagent]

You cant. Best you can do is play with your curve a little, but you cannot change your power limits, one of the only drawbacks to running an X3D part.

 

Edit:

 

Yes you can change power limits.. but you can only go down, not up. You need more power.

[Imapancake22]

2 hours ago, freeagent said:

You cant. Best you can do is play with your curve a little, but you cannot change your power limits, one of the only drawbacks to running an X3D part.

 

Edit:

 

Yes you can change power limits.. but you can only go down, not up. You need more power.

"Yes you can change power limits.. but you can only go down, not up. You need more power."

 

Do I need a better power supply? I have a 1000w one but it only comes with one CPU power cord but my board has two ports for them. I also wasn't able to get the 4 pin part of the 24 pin into the board.

[freeagent]

10 minutes ago, Imapancake22 said:

Do I need a better power supply?

You're power is fine, what I meant was that you cannot add more PPT/TDC/EDC, which is what you need more of to gain higher clocks in that type of heavy load.

[Pasi123]

1 hour ago, Imapancake22 said:

I also wasn't able to get the 4 pin part of the 24 pin into the board.

So you only have 20 pin connected to the board? You definitely should connect the whole 24 pin including the 4 pin part.

[YoungBlade]

The only way to get the 7800X3D to get more performance is through undervolting. It is limited in how much power it can draw because of the 3D V-Cache; it is stacked on top of the cores, so it takes longer for heat to transfer to the IHS, and thus your cooler. As a precaution against people killing their chips by trying to overclock them, AMD limits the OC options for the X3D chips.

 

Undervolting will allow the chip to boost for longer by reducing the amount of power it needs at a given clockspeed. The only risk is instability, similar to what can happen if you push an overclock too far.

[Godlygamer23]

4 hours ago, Imapancake22 said:

"Yes you can change power limits.. but you can only go down, not up. You need more power."

 

Do I need a better power supply? I have a 1000w one but it only comes with one CPU power cord but my board has two ports for them. I also wasn't able to get the 4 pin part of the 24 pin into the board.

Why were you not able to connect the 4-pin portion of the connector?

Are you referencing this topic, even though it's about the 4-pin portion of the CPU power plug?

[Imapancake22]

12 hours ago, Godlygamer23 said:

Why were you not able to connect the 4-pin portion of the connector?

Are you referencing this topic, even though it's about the 4-pin portion of the CPU power plug?

I was able to get the CPU power in just fine, I just removed the board and plugged the cable in that way. I wasn't able to get the +4 pin in because the cable is just a bit too short, I looked it up on Google and I'm not the only one who had this issue.

[Godlygamer23]

4 minutes ago, Imapancake22 said:

I was able to get the CPU power in just fine, I just removed the board and plugged the cable in that way. I wasn't able to get the +4 pin in because the cable is just a bit too short, I looked it up on Google and I'm not the only one who had this issue.

What power supply are you using? 

[Imapancake22]

12 minutes ago, Godlygamer23 said:

What power supply are you using? 

Pure Power 12 M 1000W

[Imapancake22]

14 hours ago, Pasi123 said:

So you only have 20 pin connected to the board? You definitely should connect the whole 24 pin including the 4 pin part.

Couldn't plug it in no matter what I tried, best I got was the 4 pin partially in the socket but that seemed a bit risky. I'll get a 3rd party cable that should help me out eventually