Max safe voltage, FX-6300?

If you need four more years, then you shouldn't push things any further.

How much you can overclock also depends on several factors:
1) CPU Cooler
2) Motherboard (to provide stable voltage)
3) not every FX-6300 is identical (some overclock better)

The VOLTAGE is the largest contributor to wearing out your PC prematurely. The higher the voltage, the quicker you wear out your CPU.

1.55v is the absolute max. Just make sure to keep your temperatures in check.

Atm I'm doing a stable 4,51Ghz at 1,406V - (21.5mp and 210mhz fsb)..
Have had it running at 4.75Ghz at 1,45V, but it got a bit to hot with only fans.
Now I'm on a full costum water setup, so I'd might try going for 5Ghz again..

a quest? why all you guys de voltage so high? I have test something like 8 hours on 4.51Ghz 1.320V en temps vrm max 70 cpu max 44
and have no problem?
and the normal temps with out the high. cpu 36 and vrm 65

software prime95
I have a fx6300 black edition
liquerd cooling
msi 970 gaming motherboard
msi 390 gaming

Then you are lucky to have gotten a cpu that don't need a high voltage to run stable..
If I did a 4.51Ghz at 1.320V with my FX6300 it simply sould not start up..

There is a big difference in cpu's, even from the same line of production..

how can it be difference?
and is it possible you have a wrong setting?
I have turbo modus off. the OC button on the top is black.

Simple fact is not every processor can reach 5Ghz. Most of the FX 6300s I've worked with recently have been topping out right around 4.8Ghz, I've recently gotten some FX 6350s to 5Ghz but they usually fall within the 4.8 - 5Ghz range. The ability to overclock all depends on the binning of the chip and how you did in the silicon "chip lottery". The FX 6350 has better binning than the FX 6300 and will typically, but not always overclock better.

Maximum safe voltage for an FX processor is 1.55V (although overclocking enthusiasts with water loops will go as high as 1.6V). For the FX 6300 I really wouldn't push must past 1.5V as getting that 100 extra Mhz just isn't worth the extra heat, and wear and tear on your processor. I know with my FX 8370 I was able to overclock to 4.7Ghz with only 1.336V, but go get to 4.8 was a bigger jump, 4.9 even bigger, finally getting to 5Ghz @ 1.44V (multiplier only). I can get 5.5Ghz multiplier only @ 1.55V (under load jumping to 1.6V) but the wear and tear and heat isn't worth the extra performance gain. After overclocking with fsb and multiplier (to improve single core performance) I got my everyday clock of 5.05Ghz @ 1.46V (my goal was best overclock under 1.5V to improve chip longevity).

If you already haven't checked your overclock with the suggestions of the below guide I would try their suggestions to help with your overclock:

http://www.overclock.net/t/1348623/amd-bulldozer-and-piledriver-overclocking-guide-asus-motherboard

One last thing you can try- I found that with my particular motherboard (Sabertooth 990FX R2.0) and processor I was hitting an overclock wall @ around 4.9Ghz and needed to pump over 1.5V (like 1.52) to get it to go to 5Ghz and so I started tweaking all the settings. I found that in my case the problem was HPC Mode. I had it enabled (as is suggested by most) but found that if I disabled it my system could hit the overclocks with less Vcore. After disabling the HPC Mode I went from 5Ghz stable @ 1.52V to 5Ghz stable @ 1.44V. In my situation that was quite a difference and allowed me to get some truly monster overclocks. For an everyday overclock I recommend staying under 1.5V and getting the best stable clock you can.

edit: Just realized this was an old thread from 2014, but hope my above suggestions can help anyone working with FX processors

Redneck 5439:

Well, almost a year after your post Redneck 5439 you have helped someone. Me! OCing an FX6300 on a new ASROCK mobo, 970A-G/3.1 (8+2 VRM but doubled I believe), a relatively new roll out that has 3.1 USB and M2 slot, sort of a Frankenstein of new and old (AM3+) technology. I replaced a Biostar TA970 (4+1 VRM), which wasn't very good for OCing, mainly because it would thermal throttle when VRMs got hot and nothing you could do about it in UEFI to offset, so max I could hit with that board was 4.3 GHZ. I'm up to a stable 4.4 Ghz on the new board, but still going. VID set at 1.325v, with a +100mv offset (a setting in the UEFI that offsets the Vdroop (that may be an Intel term, but the voltage drop this processor experiences when overclocking processor under load), so at idle at 4.4 GHz I get a 1.392 Vcore, and at load it drops down to 1.328v. The +100mv offset keeps it from going lower. Seems sort of like a LLC type of approach, though it isn't called that specifically by Asrock on this board. Your post gave me a good idea of the freq and voltage limits I might experience, plus your link to the overclocking guide gave me a hint on upping the NB to stabilize a high OC. I haven't tried that yet, but it worked on an old AMD A8-3870K when overclocking, boosting the CPU NB voltage on that processor helped get slightly higher stable overclocks. I'm shooting for a 4.5 Ghz+ with a max Vcore of around 1.45v, seems like I might be able to do it based on the chips performance so far.

As you said in your post, this too is a little late, but hoping it might help someone else. I find that even old posts, if they provide info on type of setup and OC results are helpful when I'm overclocking a processor. Plus, hardware wise I'm always slightly behind the latest and greatest by about a year or more!! Sometimes even more, I have an old EPOX socket 939 mobo and Athlon two core CPU still going strong, running Slackware on it. The key on good overclocks, IMO, is getting to know your mobo and it's limits, and how the UEFI/BIOS settings function and interact. So any info from others on their experience with a particular CPU and motheboard is very helpful.

Deus Gladiorum (if your still around): My mobo has 1.55v plugged into the UEFI/BIOS as max cpu voltage. AMD Overdrive has the max voltage I can set for this CPU at 1.55v. On temps, AMD OverDrive for this CPU has 52.0 degrees C as the Thermal Margin and my core temp is running at the moment 18 degrees C, which suggests 70 deg. C as core temp. before builtin thermal throttling of the processor kicks in. AMD specs on their site also say 70.50 deg. C as max temp. Not saying all this is gospel, but just some data points to consider and it seems to square with what I see in the forums, etc. IMO I'd stay below 1.5v, and closer to 1.4 than 1.5 for long term stable OC, and 60 deg. or less. Less heat and voltage in general will prolong the life of your processor relative to what the max values are if that is a concern. But if your on a binge, hey, go for it! I love the smell of burning silicon in the morning, it smells like.....VICTORY!

Paleouno (i.e. old one!)