I have returned to AMD!!!!

[moorhen2]

Hi Guys n Girls, i have decided to return to good old AMD, and the delivery man brought me these today.Hope to be able to get back in the groove once again,lol!!! I may have to ask some questions,as it has been a while since i overclocked with AMD cpu's, so bear with me,lol!!!

[informal]

Welcome back man! There are many users here who know everything there is to know about OCing FX on AM3+ ,you can ask freely and local OC magicians will reply
Good luck with your chip,I hope you can hit north of 4.8Ghz on your sample.

[moorhen2]

Thanks Informal, it's been a while, last time was the Thuban cpu, will just be a case of updating my overclocking skills again with these new chips. Hope my sample is a good one, 1252PGT, so we will see what it can do.

[tbone8ty]

You got the xmas batch

[moorhen2]

Yeh, last week in 2012, i'm looking forward to dismantling my I7 kit, and throwing the new stuff in, getting bored with Intel stuff at the moment, heart has always been AMD to tell the truth.lol!!!

[tbone8ty]

FX chips are tricky beasts you will have fun learning

Try and pick up some high freq memory if u can

Watercooled right?

[FlanK3r]

WATTERCOOLING IS RIGHT CHOICE FOR FX . Will be fun, specially in mutlithreading. What RAM do you will use it?

[AMDforME]

FWIW-

The sweet spot on the FX-8350 processors is typically 4.6-4.7 MHz. A few will go higher but they are the exception, not the norm. When you need to bump the Vcore a lot to go another 100 MHz., you're at the end of the line without DICE or other super cooling.

You'll want to disable all CPU power saving features such as C1E, C&Q, APM, etc. before you start OC'ing. Set all of the voltages and frequencies manually instead of using "auto". Use the best LLC option that maintains the Vcore voltage under P95/OCCT testing, at whatever you set it to in the BIOS. Different mobos use different arrangements on LLC and they don't necessarily work as advertised - so you really need to watch the Vcore under load so that you don't seriously over-volt the CPU - which some LLC settings will do.

If you haven't seen this AMD Tuning Guide it has some useful info. but I would suggest doing all OC'ing via the BIOS for best results IME as the AMD OverDrive app doesn't allow adjustments of all setting like the BIOS.

http://sites.amd.com/us/Documents/AM...ning_Guide.pdf

The FX CPUs OC a little differently than the Deneb and Thuban CPUs in that once you reach the optimum Vcore and CPU-NB voltages, increasing those voltages more can actually make the system unstable - even without the CPU running hot. In the past you were always safe with a little higher voltages but not with the FX CPUs.

There are several threads here on OC'ing the FX-8350/8320 models. It's all good fun as long as you are patient. Some people have difficulty running OCCT or P95 for hours without an error. This is a sure sign that the BIOS settings are not optimised or that the person is trying to run the CPU just a little higher frequency than it will actually run stable.

FX CPUs draw a lot of power when OC'd so keep an eye on the core temps, NOT the CPU/CPUIN/CPUT temps that are in some temp programs. CPU/CPUIN/CPUT are the CPU socket temp which typically runs 15-20C above the core temps. The CPU socket temps should be ignored but not the core temps. You want to limit your Max core temps to ~ 61C on the FX-8xxx series CPUs, for 24/7 use, according to AMD.

Stress testing with P95/OCCT will push your core temps up fast depending on how much Vcore and CPU-NB voltage you use along with how high a frequency you use. You will also see that the idle and low load temps are incorrect as they read below ambient temp - which is impossible. AMD engineers have stated the temps from ~40C upward are accurate and to ignore the lower temps, which do not matter.

[FlanK3r]

with custom watter is 5 GHz stable possible (and good board as C5F/C5F-Z)...Vishera is more than +150 MHz better than Bulldozer in OC. I was shocked, with my Vishera chips at begining - over 5200 MHz Cinebench runs with nothing special cooling, 5700 MHz validation, 1.4V over 4900 MHz runs hard benchmark etc.

[moorhen2]

FWIW-

The sweet spot on the FX-8350 processors is typically 4.6-4.7 MHz. A few will go higher but they are the exception, not the norm. When you need to bump the Vcore a lot to go another 100 MHz., you're at the end of the line without DICE or other super cooling.

You'll want to disable all CPU power saving features such as C1E, C&Q, APM, etc. before you start OC'ing. Set all of the voltages and frequencies manually instead of using "auto". Use the best LLC option that maintains the Vcore voltage under P95/OCCT testing, at whatever you set it to in the BIOS. Different mobos use different arrangements on LLC and they don't necessarily work as advertised - so you really need to watch the Vcore under load so that you don't seriously over-volt the CPU - which some LLC settings will do.

If you haven't seen this AMD Tuning Guide it has some useful info. but I would suggest doing all OC'ing via the BIOS for best results IME as the AMD OverDrive app doesn't allow adjustments of all setting like the BIOS.

http://sites.amd.com/us/Documents/AM...ning_Guide.pdf

The FX CPUs OC a little differently than the Deneb and Thuban CPUs in that once you reach the optimum Vcore and CPU-NB voltages, increasing those voltages more can actually make the system unstable - even without the CPU running hot. In the past you were always safe with a little higher voltages but not with the FX CPUs.

There are several threads here on OC'ing the FX-8350/8320 models. It's all good fun as long as you are patient. Some people have difficulty running OCCT or P95 for hours without an error. This is a sure sign that the BIOS settings are not optimised or that the person is trying to run the CPU just a little higher frequency than it will actually run stable.

FX CPUs draw a lot of power when OC'd so keep an eye on the core temps, NOT the CPU/CPUIN/CPUT temps that are in some temp programs. CPU/CPUIN/CPUT are the CPU socket temp which typically runs 15-20C above the core temps. The CPU socket temps should be ignored but not the core temps. You want to limit your Max core temps to ~ 61C on the FX-8xxx series CPUs, for 24/7 use, according to AMD.

Stress testing with P95/OCCT will push your core temps up fast depending on how much Vcore and CPU-NB voltage you use along with how high a frequency you use. You will also see that the idle and low load temps are incorrect as they read below ambient temp - which is impossible. AMD engineers have stated the temps from ~40C upward are accurate and to ignore the lower temps, which do not matter.

No disrespect, but i'm not a noob when it comes to OC'ng, just out of the loop with regards "Vishera", but many thanks for the info.

[moorhen2]

WATTERCOOLING IS RIGHT CHOICE FOR FX . Will be fun, specially in mutlithreading. What RAM do you will use it?

Will be using some of the ram from my sig to start with, but will be looking for some higher frequency ram in the near future, maybe 2400mhz,we will see, probably start of with the Corsair Dominator GT 2000 8.9.8.24 and see how we go. Hope to get my Intel I7 kit stripped out and the AMD kit instaled over the weekend, good excuse to drain my loop and change the waterblock over.

Thanks for all the replies...

[AMDforME]

No disrespect, but i'm not a noob when it comes to OC'ng, just out of the loop with regards "Vishera", but many thanks for the info.

I wasn't suggesting that you were a noob. I was pointing out the differences between OC'ing the FX model CPUs and Deneb/Thuban.

[moorhen2]

I wasn't suggesting that you were a noob. I was pointing out the differences between OC'ing the FX model CPUs and Deneb/Thuban.

No worries, thanks again for the advice....

[keithlm]

with custom watter is 5 GHz stable possible (and good board as C5F/C5F-Z)...Vishera is more than +150 MHz better than Bulldozer in OC. I was shocked, with my Vishera chips at begining - over 5200 MHz Cinebench runs with nothing special cooling, 5700 MHz validation, 1.4V over 4900 MHz runs hard benchmark etc.

For my chip running at 5.0Ghz is stable enough for benchmarking and it generally won't reboot during normal daily tasks. But it just does not "feel" 100% stable. I have to drop it about 50-75Mhz to get the feel of complete stability.

I think that AMDforMe must have meant "at stock voltage" when he mentioned the sweet spot of 4.6-4.7. I can only get 4.6 to be 100% stable at stock voltage. Running at 4.7 it will only Prime for about 10 hours without an error. Which some people consider "stable enough" but I do not.

Plus I've only been able to get about 5.4-5.5 Ghz validation... 5.7 would be cool. What is your secret? Or are you just that much more cool than me. :-P

[FlanK3r]

only a luck at chip maybe ...

[AMDforME]

For my chip running at 5.0Ghz is stable enough for benchmarking and it generally won't reboot during normal daily tasks. But it just does not "feel" 100% stable. I have to drop it about 50-75Mhz to get the feel of complete stability.

I think that AMDforMe must have meant "at stock voltage" when he mentioned the sweet spot of 4.6-4.7. I can only get 4.6 to be 100% stable at stock voltage. Running at 4.7 it will only Prime for about 10 hours without an error. Which some people consider "stable enough" but I do not.

Plus I've only been able to get about 5.4-5.5 Ghz validation... 5.7 would be cool. What is your secret? Or are you just that much more cool than me. :-P

No I did not mean at stock voltage. I meant Prime 95 stable for 24 hours. Some FX CPUs may run 4.6-4.7 at stock voltage but they would be the exception, not the norm. A lot of people can run 4.7+ GHz. but the systems won't Prime for more than a few hours - like yours. If that's acceptable then you can run higher than 4.7 GHz. with many FX CPUs, but I won't settle for anything less than 24 hour P95 stable. There are lots of high validations that aren't stable systems. That stuff is just for the ego...

[Oese]

indeed these are not "mean" values. Prime stability at stock v is a problem for me at over 4.4 g....

[AMDforME]

indeed these are not "mean" values. Prime stability at stock v is a problem for me at over 4.4 g....

That appears to be common and normal.

[Oese]

i know. nevertheless, benching is possible at almost 1 ghz more (normal water) and thus there is some fun in every chip

curious how the christmas batch will clock

[AMDforME]

i know. nevertheless, benching is possible at almost 1 ghz more (normal water) and thus there is some fun in every chip

curious how the christmas batch will clock

It's definitely fun finding the OC limits on the FX CPUs.

[moorhen2]

Was hoping to get my system stripped out today, but was'nt to be, so looking forward to tomorrow, just wondering if i have a good chip, heres hopping,lol!!

[AMDforME]

Was hoping to get my system stripped out today, but was'nt to be, so looking forward to tomorrow, just wondering if i have a good chip, heres hopping,lol!!

Of course you got a good chip. AMD don't ship the bad ones. Soon we'll all know your definition of "good chip".

[Daveburt714]

Welcome back man....

Just curious why you switched back? I've thought about trying the Intel chips a few times (even recently) but just can't bring myself to make the switch.
I've always used AMD since the Amiga went away, and even though they don't look so good in some synthetic benchmarks I've never found them lacking for my uses.
Plus, I'm very familiar with them and they're a blast to OC!

Good luck with your chip! I think 1252 is the newest batch I've seen so far, hopefully it's a good one...
I have 2 8350's that will both run stable in the 4.8-4.9 range, but they require vcore ~1.5+ which pushes power consumption pretty high.

I'm using the one that does 4.62 @ 1.4v for my daily rig.
I'll be watching for some numbers...

[moorhen2]

Thanks Daveburt714, i have come back to AMD as i am a bit of a "fanboy" realy,one of the best chips i ever owned was the FX55, it was Top Dog in the day,another chip was the old "Barton Core",had lots of fun with them.
Intel are ok, but they change socket every other week,lol!!, so i thought enough is enough, hence my return to good old AMD, and i am so looking forward to testing this new chip....

I see you have the Corsair 800D, it's a fantastic case, i have one to, i'm eying up the 900D at the moment.

[PedantOne]

Hi Guys n Girls, i have decided to return to good old AMD, and the delivery man brought me these today.Hope to be able to get back in the groove once again,lol!!! I may have to ask some questions,as it has been a while since i overclocked with AMD cpu's, so bear with me,lol!!!

and what? we need new thread?