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I need tips OCing FX-8320

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post #11 of 51 (permalink) Old 05-15-2014, 09:55 PM - Thread Starter
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UPDATE!

GOT MY CPU STABLE AT 4.2GHZ AT ONLY 1.23V!!!!!! ran prim95 for about 2hr and my CPU never went over 62c and package was 40c then I played 2 games of bf4 and titan fall everything is perfect no overheating at all. Ty for all the tips guys.

MOBO: Asus Sabertooth 990fx
CPU: FX-8320 (clocked at 4.0)
COOLER: Corsair H55 water cooler
GPU: EVGA GTX 760 2gb (SC)
PSU: Corsair 750watt gold
OS: Windows 7 Primium
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post #12 of 51 (permalink) Old 05-15-2014, 10:21 PM
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First off I'd like to say thank you for an amazing reply I understand this a little better now smile.gif sorry for being inappropriate ? I was just Trying to be funny... But like I said to the last guy I apologize. And I respects everyone's views! This is my first time posting so I thought to get more ppl involved you post again.. How do I delete the other post? I don't want to give anyone a hard time.

really quick! When I installed my H55 2 days ago I smeared some of the thermal compound of not much but I did leave my finger prints on the block should I put new thermal paste?

Its all good, we've all done something like it one time or another. And to be straight with you, I'm just trying to help you get off on the right foot, not give you a hard time smile.gif. OCN really is a great place to learn, and I'm glad to see you've got a good attitude about trying to fit in and keep this place excellent smile.gif.

You can delete/edit your post simply by clicking on the pencil icon on the bottom leftish side of the post, then just clicking save after your changes. Sadly, you can't edit things of yours that people already quoted, but you can at least take care of any random misspellings or failed attempts at humor rolleyes.gif.

Also, the H55 is a solid cooler. Its no custom water cooling loop, but its pretty inline with good air coolers. From the sound of it, you did mess with the thermal paste. Its not so much that you touched it, that it the imprint of your thumb might have allowed air bubbles to get trapped in there when you seated the heatsink. So if you think your temps are high, I'd probably reseat it. At worst, the temps don't improve. At best, you might get a couple degrees lower temperature.

Also, if you want better temps out of the H55, you can also add another fan to it (called a "push - pull" setup). That is usually good for a few degrees C as well. And finally you can add higher performance fans if you're not too worried about the noise. Personally, I'd take one of those extra case fans and see if the push pull makes a difference in temps.
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Originally Posted by ULTIMATEPLATANO View Post

UPDATE!

GOT MY CPU STABLE AT 4.2GHZ AT ONLY 1.23V!!!!!! ran prim95 for about 2hr and my CPU never went over 62c and package was 40c then I played 2 games of bf4 and titan fall everything is perfect no overheating at all. Ty for all the tips guys.

Excellent! That is REALLY low voltage. I just barely got a 8350 (yesterday in fact), and I think my stock voltage is higher than that. Now if you're interested you can keep trying to push the OC farther thumb.gif.

Good luck smile.gif.
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post #13 of 51 (permalink) Old 05-15-2014, 11:55 PM
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Originally Posted by ULTIMATEPLATANO View Post

UPDATE!

GOT MY CPU STABLE AT 4.2GHZ AT ONLY 1.23V!!!!!! ran prim95 for about 2hr and my CPU never went over 62c and package was 40c then I played 2 games of bf4 and titan fall everything is perfect no overheating at all. Ty for all the tips guys.

Try 10-12 hours of Blend and then 10-12 of largeFFT and unless you got a really lucky chip, you will see it fail. 1.23v is very low for 4.2Ghz for most FX chips. Simply Prime95 takes time to show instability.

Many users nowdays run 60 minutes of Prime and they think they "passed"... rolleyes.gif Looks good on internet forums though.
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post #14 of 51 (permalink) Old 05-16-2014, 02:52 AM
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Try 10-12 hours of Blend and then 10-12 of largeFFT and unless you got a really lucky chip, you will see it fail. 1.23v is very low for 4.2Ghz for most FX chips. Simply Prime95 takes time to show instability.

Many users nowdays run 60 minutes of Prime and they think they "passed"... rolleyes.gif Looks good on internet forums though.


Many people don't even run Prime95 and say they have a stable 24/7 overclock!

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post #15 of 51 (permalink) Old 05-16-2014, 04:48 AM
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It takes 1.41v on my FX-8320 to get 4.2 stable, and even then my RAM ruins the stability. I really need a better kit of RAM.
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post #16 of 51 (permalink) Old 05-16-2014, 06:15 AM - Thread Starter
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Some people don't even boot at 1.2v I was reading that its not necessary to run prim that long because no one runs a PC 12 str8.. What's the benefits of tuning prim so long?

MOBO: Asus Sabertooth 990fx
CPU: FX-8320 (clocked at 4.0)
COOLER: Corsair H55 water cooler
GPU: EVGA GTX 760 2gb (SC)
PSU: Corsair 750watt gold
OS: Windows 7 Primium
CASE FANS: 5
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post #17 of 51 (permalink) Old 05-16-2014, 06:37 AM - Thread Starter
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Thanks I'll get to editing as soon as I'm near my PC (on my phone now) I did mount the extra fan! And new paste I think it made a huge Difference and its running way cooler then before.

MOBO: Asus Sabertooth 990fx
CPU: FX-8320 (clocked at 4.0)
COOLER: Corsair H55 water cooler
GPU: EVGA GTX 760 2gb (SC)
PSU: Corsair 750watt gold
OS: Windows 7 Primium
CASE FANS: 5
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post #18 of 51 (permalink) Old 05-16-2014, 06:39 AM - Thread Starter
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I'm definitely pushing for 4.3 if lucky 4.4!

MOBO: Asus Sabertooth 990fx
CPU: FX-8320 (clocked at 4.0)
COOLER: Corsair H55 water cooler
GPU: EVGA GTX 760 2gb (SC)
PSU: Corsair 750watt gold
OS: Windows 7 Primium
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post #19 of 51 (permalink) Old 05-16-2014, 10:42 AM
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Originally Posted by an65001 View Post

It takes 1.41v on my FX-8320 to get 4.2 stable, and even then my RAM ruins the stability. I really need a better kit of RAM.

Yes, i never overclock, but i have noticed some crazy values from people who just want to celebrate their uber chip and they think that Prime is more or less useless... i 've seen crazy undervolting claims too...Especially in Thubans, i remember once a guy claiming so low voltages that it seemed almost a 65W chip. Of course he never provided a 10h run of Prime, so i don't believe he had a golden chip.
Quote:
Originally Posted by UltimatePlatano 
Some people don't even boot at 1.2v I was reading that its not necessary to run prim that long because no one runs a PC 12 str8.. What's the benefits of tuning prim so long?

Up to a few years ago, the "Bible" of overclocking was requiring to pass 24hours straight Prime95, before claiming a stable overclock. In the most recent years, this has gone down to 30 minutes, in a race between users that only cared to post CPU-Z "validations" with higher clocks.

There is even a new "fashion" amongst FX users, that when their overclock can't pass Prime95, they blame the software and not their overclock. Oddly enough, other FX users manage to pass Prime95, so it can't be software problem.

The "benefit", is simply because the algorithms that are ran during Prime95, are not the same. If you look carefully, you will notice that they are different. And CPUs that aren't perfectly stable, will sooner or later fail in a different algorithm. I 've had undervolting attempts failing after 6 hours Prime. I 've had times where it would pass IBT but not Prime after 10 hours. Even more, i 've had times where it would pass Blend for 8 hours,but not largeFFT for less hours.

At the end, there are many users that are happy enough with "almost stable". But, to my experience, if you stress the CPU a lot, sooner or later, an instability in Prime, will show. A BSOD that happens once a month, a mysterious corruption of your windows installation, it can be anything. Then people go to fora and complain about software problems, that in reality were caused by their "non perfectly stable" overclock. Same applies with undervolting really...

The lowest booting voltage, oddly enough, is also motherboard dependent. The FX-6300 is stable at 1.185v on my Asrock 970 board, while needs 1.23v on my Gigabyte 970 board (at stock frequency).
But 1.23v for 4.2Ghz, sounds a bit too optimistic for me... It could happen in a very good chip, but unless you run Prime for 10h at least, you can't be really sure. As i said "old school" overclockers, before the trend of showing off CPU validations was out, used to run 24h Prime. I stop at 12h plus IBT, because undervolting is less complicated and haven't witnessed any instability doing so, despite putting full load on CPU for days non-stop.
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post #20 of 51 (permalink) Old 05-16-2014, 10:44 AM
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