Good OC for a scythe fuma?

[YuppityYap]

I won a scythe fuma froma giveaway, its pretty overkill for my r5 1600. What would be a good oc for it? What speed,what voltage?

[Jurrunio]

1.4v is the max. Unless you can go below ambient temperature that's as high as you should go before degradation gets significantly fast.

 

4GHz will be a good result

[YuppityYap]

On 2/5/2019 at 6:57 AM, Jurrunio said:

1.4v is the max. Unless you can go below ambient temperature that's as high as you should go before degradation gets significantly fast.

 

4GHz will be a good result

What is considered ambient temperature? Also, I have tried 1.38v @ 4.0ghz for 30 mins and I crashed, my temps were 73C before it crashed should I go on to 1.4v or 1.425v?

[Jurrunio]

1 minute ago, YuppityYap said:

What is considered ambient temperature? Also, I have tried 1.38v @ 4.0ghz for 30 mins and I crashed, my temps were 73C before it crashed should I go on to 1.4v or 1.425v?

anything below your room temperature.

 

the CPU can take 1.425v, but your cooling doesnt seem to keep up that well

[YuppityYap]

1 minute ago, Jurrunio said:

anything below your room temperature.

 

the CPU can take 1.425v, but your cooling doesnt seem to keep up that well

Sorry I forgot to mention it is 73c in prime95(which apparently generates way more heat than the average load on a cpu.) I have not a clue what my ambient room temp is,but I do know that the cpu runs 30c-40c idle @ 1.38v

[Jurrunio]

2 minutes ago, YuppityYap said:

Sorry I forgot to mention it is 73c in prime95(which apparently generates way more heat than the average load on a cpu.) I have not a clue what my ambient room temp is,but I do know that the cpu runs 30c-40c idle @ 1.38v

just try that voltage first, stability is more important

[badreg]

1 minute ago, YuppityYap said:

73c in prime95(which apparently generates way more heat than the average load on a cpu.)

What size FFT? Small FFT is the worst-case scenario that you are never going to encounter in the real world. 85°C is the recommended limit by AMD, so if you are sitting at 73°C, you still have a few degrees more headroom. I would give it another 20mV and see how it goes from there.

[YuppityYap]

5 minutes ago, Jurrunio said:

just try that voltage first, stability is more important

1.38v has already been tried, doesnt work with 4.0ghz nor 3.95v but does with 3.9ghz(and so does 1.35v) I have a b350 tomahawk so im worried about the VRMs a little bit,so should I try 1.4ghz or is it safe to say I hit the wall for my cpu(3.9ghz)

[Jurrunio]

2 minutes ago, YuppityYap said:

1.38v has already been tried, doesnt work with 4.0ghz nor 3.95v but does with 3.9ghz(and so does 1.35v) I have a b350 tomahawk so im worried about the VRMs a little bit,so should I try 1.4ghz or is it safe to say I hit the wall for my cpu(3.9ghz)

try 1.425, it's just a 6 core so it's at least fine for testing.

[YuppityYap]

4 minutes ago, Jurrunio said:

try 1.425, it's just a 6 core so it's at least fine for testing.

It actually seems to be 25C idle according to the bios. Im trying 1.4v rn Ill keep you updated

[YuppityYap]

@Jurrunio Its been almost an hour in prime95 small ftt. CPU is at 78C max(is currently sitting at 75c) And @ 4.125v,but people said that if I have it at this voltage I will fry it. Does voltage fry components or is it exclusive to heat because voltage generates more heat.

[Jurrunio]

3 minutes ago, YuppityYap said:

@Jurrunio Its been almost an hour in prime95 small ftt. CPU is at 78C max(is currently sitting at 75c) And @ 4.125v,but people said that if I have it at this voltage I will fry it. Does voltage fry components or is it exclusive to heat because voltage generates more heat.

voltage fries CPUs because of the high current cau=sed by high voltage. For 1st gen Ryen 1.425v is fine because the current leakage is low, unlike 2nd gen Ryzen. You can see this in terms of heat output, 2nd gen Ryzen produces a lot more heat at 1.4V, that's why 2nd gen is preferred to stay slightly below that.

[YuppityYap]

1 hour ago, Jurrunio said:

voltage fries CPUs because of the high current cau=sed by high voltage. For 1st gen Ryen 1.425v is fine because the current leakage is low, unlike 2nd gen Ryzen. You can see this in terms of heat output, 2nd gen Ryzen produces a lot more heat at 1.4V, that's why 2nd gen is preferred to stay slightly below that.

So, what you are saying is that voltage doesnt fry components, heat does, but high voltage generates heat

[Jurrunio]

9 minutes ago, YuppityYap said:

So, what you are saying is that voltage doesnt fry components

No, high voltage still kills stuff even if it's running cold. It does give you more tolerance though, that's why liquid nitrogen allows 1.8v into the CPU if not higher, but it's still not an infinite number even if you can get rid of the heat.

[YuppityYap]

15 minutes ago, Jurrunio said:

No, high voltage still kills stuff even if it's running cold. It does give you more tolerance though, that's why liquid nitrogen allows 1.8v into the CPU if not higher, but it's still not an infinite number even if you can get rid of the heat.

So back to your one point you said 

 

On 2/5/2019 at 6:57 AM, Jurrunio said:

1.4v is the max. Unless you can go below ambient temperature that's as high as you should go before degradation gets significantly fast.

 

4GHz will be a good result

Is it bad that I have it at 1.425v despite that I idle in windows at 32c and in aida64 I get 62c?

[Jurrunio]

3 minutes ago, YuppityYap said:

So back to your one point you said 

 

Is it bad that I have it at 1.425v despite that I idle in windows at 32c and in aida64 I get 62c?

It's not bad. I thought you're talking about 2nd gen at first

[YuppityYap]

3 minutes ago, Jurrunio said:

It's not bad. I thought you're talking about 2nd gen at first

Oh okay so would you say I'm all set?

[Jurrunio]

10 minutes ago, YuppityYap said:

Oh okay so would you say I'm all set?

yes

[YuppityYap]

4 minutes ago, Jurrunio said:

yes

thanks man! youve been a lot of help