Overclock.net › Forums › AMD › AMD CPUs › FX 6100 4.3 ghz stable in prime 95 with 1.41 volts , not stable with 4.5 ghz 1,48 volts. So is there difference between 4.3 ghz and 4.5 ghz ?
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FX 6100 4.3 ghz stable in prime 95 with 1.41 volts , not stable with 4.5 ghz 1,48 volts. So is there difference between 4.3 ghz and 4.5 ghz ?

post #1 of 7
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FX 6100 4.3 ghz stable in prime 95 with 1.41 volts , not stable with 4.5 ghz 1,48 volts. So is there difference between 4.3 ghz and 4.5 ghz ? I want to use stable and less heat . Is it worth to use with 4.5 ghz unstable with prime 95 ? or I should use 4.3 ghz ?

here is my new rig:


Fx 6100 @ 4.3 GHZ -- GIGABYTE 970A --Powercolor HD 7950 -- SANDISK EXTREME 120 GB SSD -- 500 GB SEAGATE HD -- 8 GB RAM -- COOLERMASTER HYPER 212 EVO CPU Cooler -- AEROCOOL VS-3 CASE -- 500 WATT XIGMATEK PSU -- VE 2 ARCTIC COOLING + 2 AKASA CASE FANS -- 27" ASUS VE276Q LED MONİTÖR
4790K BEAST
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post #2 of 7
Thread Starter 
???
4790K BEAST
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post #3 of 7
I think its better to use a slower but 100% stable speed, then a higher speed but not 100% stable.

Difference from 4.3Ghz to 4.5ghz is same like from 4.1ghz to 4.3.ghz.

Some videogames where you are CPU limited every mhz will give extra performance, so why not go for a 4.4Ghz overclock ? biggrin.gif
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post #4 of 7
is 1.48 vcore the highest you are willing to go?
Try lowering the clock a bit, maybe around 4,450 Mhz and see if its stable
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Seagate 1TB Seagate 1TB Sony DVDRW CoolerMaster Hyper212+ with 2x140mm Deepcool UF140 
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Seagate 1TB Seagate 1TB Sony DVDRW CoolerMaster Hyper212+ with 2x140mm Deepcool UF140 
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A4tech X7 710BH 
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post #5 of 7
haha, join the club OP! I couldn't get my 6100 stable at 4.5 with any damn voltage and also ended up having to settle for 4.3ghz. Sorry man, it sounds like we both got the bottom of the barrel when it comes to 6100 overclockers. Not every chip overclocks the same, that is for sure.
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post #6 of 7
Which Gigabyte 970A do you have?

If there's no heatsink over your VRMs, then its the VRMs throttling due to overheating that is limiting your OC.

I had to take off my VRM heatsink on my Extreme3, apply Artic Silver 5, and have a 80mm fan blowing straight at it to get to 4.7Ghz stable.
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post #7 of 7

> If there's no heatsink over your VRMs, then its the VRMs throttling due to overheating that is limiting your OC.

 

I was thinking the exact thing, and I use a similar solution.  I have a huge fan aiming at just the voltage regulators, as they get extremely hot.  But apparently they aren't intrinsically scorching (like the CPU); they just have no airflow on most boards.  With only casual airflow, they become too hot to touch.  Fan them and they cool WAY down to merely real warm.

 

I wish manufacturers would put a thermistor on the VRMs, so we'd have a metric on this.

 

As to whether the VRM throttle is limiting his O/C, he's already running a whole GIGAHERTZ over stock(!)  Like him, I also have a CPU rated at 3.3 GHZ (the six-core Phenom II 1100-T black), and I can't keep it stable past 4.0.  And he's not even using watercooling?

 

I would first just tell him that he hit his O/C limit, so tough tiddies, run at 4.3.  If he wants to push it, he may have to settle for crashes. But modulo that, my only advice would be to take a look at his sub-optimal cooling.  The cooler master hyper 212 out of the box is a pretty wimpy solution for the heat of 4.5 GHz. Particularly since it has only a "push" fan but is designed to clip a second "suck" fan on the other side.  Dude: You DID clamp a second 120mm fan onto that thang, right? 

 

But here's the best way to drop 10º C immediately, and I swear by it.  Notice that your board ambient  is usually about 10º above room ambient.  The obvious suggestion:

 

► Don't lock your computer in a tiny closet (a case)!

 

Not only does the hot air not get trapped in a case, but without a case, you can aim an ordinary desk fan at the whole motherboard and make your board ambient become room temp.  The exhaust from all those little fans gets dissipated immediately instead of getting sucked back into the fan intakes. The temp reduction is so dramatic that unless you have to carry the thing to LAN parties or move it more than once a semester, I think you're out of your mind to put your computer in a case.

 

--faye kane ♀ girl brain

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  • FX 6100 4.3 ghz stable in prime 95 with 1.41 volts , not stable with 4.5 ghz 1,48 volts. So is there difference between 4.3 ghz and 4.5 ghz ?
Overclock.net › Forums › AMD › AMD CPUs › FX 6100 4.3 ghz stable in prime 95 with 1.41 volts , not stable with 4.5 ghz 1,48 volts. So is there difference between 4.3 ghz and 4.5 ghz ?