[SOLVED] Will I need to replace RAM if I upgrade CPU?

[OnlyAlex]

Hi guys,

Do you know if I will need to replace RAM if I keep the same mobo but upgrade CPU? I currently have an Asus Prime B350 Plus with an AMD Ryzen 7 1700. If I upgrade the CPU to an AMD Ryzen 7 3700x, will I need to replace the RAM? Cheers.

 

[Eximo]

DDR4 is DDR4, can't really say more with no details about the RAM.

 

[OnlyAlex]

DDR4 is DDR4, can't really say more with no details about the RAM.

16.0GB Dual-Channel Unknown @ 1066MHz (15-15-15-36)

 

[Eximo]

2133 is certainly slower than what should pair with a Ryzen 3000 chip. 3200 or 3600 CL15/16 are the ideal choices for cost/performance.

 

[OnlyAlex]

2133 is certainly slower than what should pair with a Ryzen 3000 chip. 3200 or 3600 CL15/16 are the ideal choices for cost/performance.

Thanks for this. I don't play many games, occasionally Minecraft. Would it be possible to stick with 2133 RAM already installed and upgrade CPU from 1700 to 3700x or would you still say upgrade RAM? Cheers

 

[hotaru.hino]

While Ryzen performs better with faster RAM up to a point, unless you really need the performance, you can keep using whatever you have.

EDIT: https://www.techpowerup.com/review/amd-zen-2-memory-performance-scaling-benchmark/2.html

Actually you probably won't see much performance loss anyway.

 

[OnlyAlex]

While Ryzen performs better with faster RAM up to a point, unless you really need the performance, you can keep using whatever you have.

EDIT: https://www.techpowerup.com/review/amd-zen-2-memory-performance-scaling-benchmark/2.html

Actually you probably won't see much performance loss anyway.

Cool, thank you. Seeing as I don't play many games I will just leave it then. Cheers. 😁

 

[kerberos_20]

Hi guys,

Do you know if I will need to replace RAM if I keep the same mobo but upgrade CPU? I currently have an Asus Prime B350 Plus with an AMD Ryzen 7 1700. If I upgrade the CPU to an AMD Ryzen 7 3700x, will I need to replace the RAM? Cheers.

thats a bad mobo + cpu combination...cpu will throttle with that VRM

 

[hotaru.hino]

thats a bad mobo + cpu combination...cpu will throttle with that VRM

The 3700X is a 65W TDP part, same as the 1700.

 

[OnlyAlex]

thats a bad mobo + cpu combination...cpu will throttle with that VRM

I don't know much about components and I don't game much, just Minecraft sometimes. It says online that it would work fine?

 

[OnlyAlex]

The 3700X is a 65W TDP part, same as the 1700.

So it would be ok, the mobo and CPU? It does say online it would be ok as long as I don't want to overclock etc? It also says 3700x is compatible with B350 Plus.

 

[kerberos_20]

So it would be ok, the mobo and CPU? It does say online it would be ok as long as I don't want to overclock etc? It also says 3700x is compatible with B350 Plus.

thats a thermal design power...for cooler info (base clock)
that has nothing to do with power draw..powerdraw on 3700x is around 150watts, 1700 has 80watts

 

[OnlyAlex]

thats a thermal design power...for cooler info (base clock)
that has nothing to do with power draw..powerdraw on 3700x is around 150watts, 1700 has 80watts

Don't really understand, sorry. Mobo is compatible and works looking online with 3700x, are you saying the PSU will need changing?

 

[kerberos_20]

Don't really understand, sorry. Mobo is compatible and works looking online with 3700x, are you saying the PSU will need changing?

nah, it means that you will need very good case airflow, or VRM will be in 100C+ range during gaming
but since you asked, whats your PSU?

 

[hotaru.hino]

thats a thermal design power...for cooler info (base clock)
that has nothing to do with power draw..powerdraw on 3700x is around 150watts, 1700 has 80watts

I had a 3700X. It drew nowhere near that much. You might be thinking of the 3800X.

https://www.anandtech.com/show/14605/the-and-ryzen-3700x-3900x-review-raising-the-bar/19

AMD Ryzen 9 3900X and Ryzen 7 3700X Review: Zen 2 and 7nm Unleashed

AMD's Ryzen 3000 series promises more performance and value via the benefits of the 7nm process and Zen 2 microarchitecture.

www.tomshardware.com

 

[OnlyAlex]

I had a 3700X. It drew nowhere near that much. You might be thinking of the 3800X.

https://www.anandtech.com/show/14605/the-and-ryzen-3700x-3900x-review-raising-the-bar/19

AMD Ryzen 9 3900X and Ryzen 7 3700X Review: Zen 2 and 7nm Unleashed

AMD's Ryzen 3000 series promises more performance and value via the benefits of the 7nm process and Zen 2 microarchitecture.

www.tomshardware.com

Do you think it will be ok then?

 

[hotaru.hino]

Do you think it will be ok then?

If your board handles the 1700 just fine, then I don't see a problem with it handling the 3700X.

 

[OnlyAlex]

If your board handles the 1700 just fine, then I don't see a problem with it handling the 3700X.

Cool, thank you.

 

[DSzymborski]

Yes, a 3700X can get up to 140W or so at load, but the 1700 isn't a 65W CPU at load, either. Make sure to not compare apples and hand grenades.

3800X or 3900X, I'd recommend a motherboard upgrade.

Just make sure to update BIOS before you install the new CPU.

 

[OnlyAlex]

Yes, a 3700X can get up to 140W or so at load, but the 1700 isn't a 65W CPU at load, either. Make sure to not compare apples and hand grenades.

3800X or 3900X, I'd recommend a motherboard upgrade.

Just make sure to update BIOS before you install the new CPU.

Thank you

 

[hotaru.hino]

Yes, a 3700X can get up to 140W or so at load, but the 1700 isn't a 65W CPU at load, either. Make sure to not compare apples and hand grenades.

Who said the 3700X gets up to 140W? I've never seen this happen and I can't find anyone who claims this is a thing.

If it's a power spike, okay, but the 3700X if running something hard maintains around 90-95W of power consumption.

 

[OnlyAlex]

I'm very confused now as multiple people are saying different things. 😂

 

[hotaru.hino]

I'm very confused now as multiple people are saying different things. 😂

I'm confused too. 140W makes sense for the 3800X. The 3700X is a lower power part. And I actually owned the CPU and monitored it more or less extensively

I mean, I'm open to someone posting something that the 3700X can reach a sustained power draw of 140W without serious hackery.

EDIT: Actually "owned" is incorrect, I still have one in another PC. If ya'll want I can go throw Prime95 on it with HWiNFO logging the data.

 

[Eximo]

I checked a few sources. 85-90W under a full load for the CPU only.

Many test setups measuring total system draw which would peak around 150-180W depending on the motherboard.

Here you are are going to run into testing differences. No idea if they are using software or hardware measurements, or their own meters. Did find one that was using the 12V EPS, but they were getting figures in the 60s, so some power coming from the ATX connector as well in that situation.

 

[OnlyAlex]

I checked a few sources. 85-90W under a full load for the CPU only.

Many test setups measuring total system draw which would peak around 150-180W depending on the motherboard.

Here you are are going to run into testing differences. No idea if they are using software or hardware measurements, or their own meters. Did find one that was using the 12V EPS, but they were getting figures in the 60s, so some power coming from the ATX connector as well in that situation.

Thanks for looking but I don't understand what any of this means. 😂