I will also take a moment to say that I am pleased that all the post's and replies that I have read here has made me decide that this is the Forum for me. So far everyone proceeds in a proper manner, unlike some other's that I will not name but seemed to have "fanboy/elitest" mentalities. So I look forward to others sharing and posting their suggestions for myself and others. As I will post in this thread my experiences with my FX-8350 as this adventure progresses.
mauser1891 wrote:Hello Folks,
I have just got done running some base test's for stability. And I am fairly comfortable that I can take my system into a overclocking scenario.
But I have come seeking wisdom and knowledge from others that have taken this path with their FX-8350's also.
I have chosen the FX-8350 for the fact I will be doing some transcoding, running at least two virtual machines and gaming.
First of all, we retested our FX-8350 processor once again. We hoped to get a better result than the original 4.7 GHz. However, we have already checked out a few other FX-8350 samples since then and none of them did any better. So, it looks like 4.7 GHz is indeed a typical overclocking maximum for a flagship AMD FX processor equipped with an air cooler.
http://www.xbitlabs.com/images/cpu/fx-8 ... 350-oc.png
So, it looks like all FX processors on Piledriver microarchitecture, independent of the number of cores they have, can overclock to about the same level of 4.6-4.7 GHz with air-cooling. Yes, it is better than what we saw from the previous generation of AMD FX processors, but there is certain no qualitative improvement in their frequency potential as of yet. Nevertheless, overclockers should be pretty happy with these results, which are quite typical of 32 nm processors.
I would also like to mention that when we overclocked FX-6300 and FX-4300 processors by raising their Vcore to 1.5-1.55 V, they didn’t heat up too much at all. The temperature of our six-core CPU rose to 65°C maximum, while the quad-core temperature stayed at the ridiculously low 53°C. It means that you could raise the core voltage higher and achieve stability at even higher clock speeds. However, we cannot approve of this approach, because excessive increase in the processor Vcore may lead to die degradation and therefore this mode is unacceptable for long-term use.
With only a few tweaks within the ASUS Crosshair V formula BIOS we were able to bring the AMD FX-8350 to a rock solid 4.9GHz at only 1.45 Volts on the core. We tried to push to 5.0GHz, but we weren't able to get anything stable even as high as 1.5 Volts. We didn't want to push to hard since we weren't quite sure how hot the processor was getting.
Using a 1.375 V CPU voltage and a 1.175 V northbridge voltage, I was able to get FX-8350 running stably at 4.8 GHz under full load.
Power consumption wise we are a little reserved in judgement, the platform with this processor uses just over 100W in idle yet when we stress the CPU cores all at once, we peak well over 200W. That's not bad, but it certainly isn't excellent either. Overclocking wise we think the FX series will offer a lot of fun but power consumption there rises quickly when you apply CPU voltage tweaks. With a decent air cooler, 4.5~4.6 GHz should be a viable target to achieve, 4.7 to 5 GHz on proper liquid cooling should be achievable as well but will require a lot of CPU voltage.
mauser1891 wrote:Designation error. X-bit Guru should be clone. Noted.
Hammer_Time wrote:BTW Clone just happened to comment on your thread, I don't believe he owns an 8350 atm, pretty sure he is still rocking a Phenom II - based system...
Norton Oct 24, 2012, 04:17 PM
ASUS released updated BIOS files today for the M5A99X Evo and M5A97 Evo
* Note- M5A97 says the same:
M5A99X EVO BIOS 1604
1.Improve system stability.
2.Support new CPUs. Please refer to our website at: http://support.asus.com/cpusupport/cpus ... uage=en-us
File Size 2,37 (MBytes) 2012.10.24 update
These updates will (should?) support the Vishera CPU's. They don't list the "new" CPU's in the support list but this is EXACTLY what they did last time with the FX-6200 BIOS revision.
Don't bother to e-mail ASUS CS as you will continue to get the canned response that they are unsupported. This is due to the CPU support list not being updated. :shadedshu
clone wrote:I agree which is why I didn't suggest he use a 6 core ora 4 core or explore an Intel platform.Clone - the reason he chose to buy the FX-8350 is thismy FX 8320 is in the mail.... literally, I'll be cooling it with air if I can, if not I've got 2 dual 120mm radiators along with a 1/2" pump and D-Tek water block .... but it is true currently I'm using an X3, my motherboard is an Asus M5A97 that will support the 8 core AMD's and will overclock via the UEFI bios and while I have used dual GPU systems I dumped all of them early on because of driver issues and instead am currently using an HD 7850 gfx card.BTW Clone just happened to comment on your thread, I don't believe he owns an 8350 atm, pretty sure he is still rocking a Phenom II - based system.in all honesty the only reason I've decided to make the move is because of boredom.... looking for something cheap, fun and indulgent to do that benefits no one but me.As do I, still no real reason to upgrade.
What is the SAFE max temperature for a overclocked 8350. I've seen reviews where they have got up to 72'c and 78'c
I checked the AMD site, max voltage and temperature are not listed.
what is max safe stress temp for the fx-8350 when all 8 cores are 100% used ?
idle its 29'c
ok well the CORE temps shouldn't go over 62c......socket temp doesn't matter...I cant tell you first hand that my cpu will throw an error when stress testing If I pass 61 or 62c....if I keep it under that its stable for hours
Not 100% sure but I think if the max temp for the socket is 81c but I don't know about core temp. I can't even find the product page for the 8350, way to go AMD...
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