FX 8350 Brick wall

RCoon · Nov 8, 2012

Ok so my 8350 arrived this morning, with hopes of knocking the bastard to 5Ghz... sadly not, currently running 4.62 at the moment with 1.45v cpu on an asus sabertooth, specs can be seen in my specsheet. I thought cooling it on a H80 would be fine, just seems to bluescreen and/or fail calculation tests on 6 cores.
havent changed much in the BIOS except removing turbo core, changing voltage to extreme and putting manual voltage on cpu. RAM is at 1866, multiplier of 23 and speed of 200.

cdawall · Nov 8, 2012

Give it more voltage.

RCoon · Nov 8, 2012

Got the bitch to 4.7Ghz on 1.45v core! didnt seem to break much heat either

m&m's · Nov 8, 2012

Have updated your BIOS to the latest one?

cdawall said:
Give it more voltage.

Yup it needs more volt!!! cadaca used 1.488V to get to 5GHz!

cdawall · Nov 8, 2012

Remember you are clocking with 4 dimms as well which is hell on an IMC. You need to bump the CPU-NB as well as the CPU-Vcore up.

RCoon · Nov 8, 2012

m&m's said:
Have updated your BIOS to the latest one?

Yup it needs more volt!!! cadaca used 1.488V to get to 5GHz!

http://www.techpowerup.com/reviews/AMD/FX-8350_Piledriver_Review/images/cpuz_oc.jpg

yeah i downloaded the latest one, ill try 4.9 on 1.48v

cadaveca · Nov 8, 2012

cdawall said:
Remember you are clocking with 4 dimms as well which is hell on an IMC. You need to bump the CPU-NB as well as the CPU-Vcore up.

No. CPU-NB adjust not recommended.

Even, NB needs to stay same speed as ram when going over 2000 Mhz. 2133...2200 NB...2400 mem...2400 NB...

RCoon · Nov 8, 2012

She crapped out on 4.9Ghz, calculation error, stuck nb and ht to 2400, cpu at 4.8ghz, vcore at 1.475 and cpunb at 1.25v. testing now

cdawall · Nov 8, 2012

cadaveca said:
No. CPU-NB adjust not recommended.

Even, NB needs to stay same speed as ram when going over 2000 Mhz. 2133...2200 NB...2400 mem...2400 NB...

CPU-NB voltage he needs to adjust it no matter what or the Sabertooth he is using will try and feed is 1.2v default or 1.5v on auto.

Jhelms · Nov 8, 2012

cadaveca said:
No. CPU-NB adjust not recommended.

Even, NB needs to stay same speed as ram when going over 2000 Mhz. 2133...2200 NB...2400 mem...2400 NB...

Pretty sure he meant voltage on the NB, in that case, yes a small bump does help increase stability.

MOAR voltage! For a stable 5ghz, my 8350 took more voltage than my cooling can support (close to 1.6V) or 5&6 would fail prime tests from errors. The sweet spot for my cooling seems to be 4.8ghz / 1.525V for stability - yes I do run c1e and cool and quiet at 4.8ghz. Past this I have to disable them. Anything over 4.8ghz and she is a nasty voltage pig (I named her v-pig lol) How does the voltage look under load vs idle? Does the sabertooth have load line calibration? have not worked with one or checked it out.

Also, back her down to 1600 on the ram. No real improvements to be had at 1866 other than instability and slower timings.

cadaveca · Nov 8, 2012

cdawall said:
CPU-NB voltage he needs to adjust it no matter what or the Sabertooth he is using will try and feed is 1.2v default or 1.5v on auto.

This is not older chips. These boards required BIOS updates for a reason, since these chips work differently.

CPU-NB only increased chip heat, provided no gains. I could also show the recommendation to not do so form AMD, but I'll let you just take my word for it instead, since every reviewer got that info.

Someone must have posted the guide by now...

now, i'd love to hear different in many cases, maybe I got a cherry chip or something, I dunno. doesn't seem like I did, honestly.

cdawall · Nov 8, 2012

cadaveca said:
This is not older chips. These boards required BIOS updates for a reason, since these chips work differently.

CPU-NB only increased chip heat, provided no gains. I could also show the recommendation to not do so form AMD, but I'll let you just take my word for it instead, since every reviewer got that info. Someone must have posted the guide by now...

I am not talking about older chips I am talking specifically about the sabertooth 990FX and FX series chips. He needs to set it to around 1.225v manually or it will be feeding it 1.5v on auto.

cadaveca · Nov 8, 2012

cdawall said:
I am not talking about older chips I am talking specifically about the sabertooth 990FX and FX series chips. He needs to set it to around 1.225v manually or it will be feeding it 1.5v on auto.

1.225V is not the default.

1.1V is. This is NOT FX-8150.

Hence, since you said 1.2215V, I make the comments I do. 1.225 V is too high, even for 2666 MHz ram.

RCoon · Nov 8, 2012

still full of fail, only runs stable at 4.7 with 1.45vcore, tried upping voltage to 1.48 at 4.9ghz and nb volatage to 1.225 and i get errors on 5 and 7

cdawall · Nov 8, 2012

cadaveca said:
1.225V is not the default.

1.1V is. This is NOT FX-8150.

Hence, since you said 1.2215V, I make the comments I do. 1.225 V is too high, even for 2666 MHz ram.

My bad.

RCoon said:
still full of fail, only runs stable at 4.7 with 1.45vcore, tried upping voltage to 1.48 at 4.9ghz and nb volatage to 1.225 and i get errors on 5 and 7

1.5v

RCoon · Nov 8, 2012

gave her 1.5vcore and didnt even run stable for more than 1 second at 4.8ghz, even knocked the ram down to 1600
its 2am here, ill try again tomorrow evening xD

cdawall · Nov 8, 2012

RCoon said:
gave her 1.5vcore and didnt even run stable for more than 1 second at 4.8ghz, even knocked the ram down to 1600
its 2am here, ill try again tomorrow evening xD

Sounds like a weak chip or the cooling can't hack it.

D4S4 · Nov 8, 2012

isn't 1.4v+ a bit much for a 32nm cpu 24/7?

drdeathx · Nov 8, 2012

Tune CPU/NB tp 1.3 volts or so that should help ya.

cdawall · Nov 8, 2012

D4S4 said:
isn't 1.4v+ a bit much for a 32nm cpu 24/7?

Not a SOI based one.

cadaveca · Nov 8, 2012

D4S4 said:
isn't 1.4v+ a bit much for a 32nm cpu 24/7?

1.4V was stock on my chip?

D4S4 · Nov 8, 2012

interesting, i know i've been reading 1.4 was maximum safe daily use for my 45nm wolfdale. googled a bit and found that wolfdale is cmos, guess that's it. haven't known about this, thanks!

NC37 · Nov 8, 2012

Turn off LLC, sounds like you have it on if you are needing that much voltage. Refer to my 8320 thread. I had to push 1.45v+ to get stable till I switched LLC off. Now I'm 1.3625v.

RCoon · Nov 8, 2012

cdawall said:
Sounds like a weak chip or the cooling can't hack it.

temps have never gone above 54.

And where is this LLC on an Asus mobo bios?

drdeathx · Nov 8, 2012

RCoon said:
temps have never gone above 54.

And where is this LLC on an Asus mobo bios?

Leave LLC alone. LLC will need LESS voltage(Less VDroop)......Make sure cool n quiet is disabled and C1E and as mentioned, put CPU/NB at 1.3 volts. I have overclocked these chips up to 6GHz on Dry ice. 5GHz + on water

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FX 8350 Brick wall

RCoon

cdawall

where the hell are my stars

RCoon

m&m's

cdawall

where the hell are my stars

RCoon

cadaveca

My name is Dave

RCoon

cdawall

where the hell are my stars

Jhelms

cadaveca

My name is Dave

cdawall

where the hell are my stars

cadaveca

My name is Dave

RCoon

cdawall

where the hell are my stars

RCoon

cdawall

where the hell are my stars

D4S4

drdeathx

cdawall

where the hell are my stars

cadaveca

My name is Dave

D4S4

NC37

RCoon

drdeathx

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