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Overclocking my FX 4300 - Page 2

post #11 of 29
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Ah okay.. what I'm using to monitor temps right now is the Asrock extreme tune software that comes with the board (still overclocking through BIOS). According to it, the CPU is ~49C at full load and the motherboard at ~40C. I'm sure this doesn't count for the VRM heatsink, however.

To improve overall cooling, I'll add a couple more fans, remove the 1st HDD cage and try to maximize cable management. Any guess if that'll be enough to keep it cool, or should I just find a way to put a small fan on the VRM heatsink?

Thanks for the help!

-Flat
    
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post #12 of 29
Direct cooling is probably the best way to do it. A small diameter, low profile fan should be enough (think just large enough to cover the total length of the heatsink.).

Attachment may prove an interesting thing to tackle, but UV reactive zip ties look decent in a case with black light CCFL's. Mine was zip tied to the CPU HSF and the back panel.
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post #13 of 29
Let me know how far you take your 4300 iam curious what the outcome is! It might persuade me to get another amd chip biggrin.gif.....
     
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post #14 of 29
yea i want to overclock that chip when i get it
post #15 of 29
It seems those chips have problems reach 4,8 GHz... I am currently testing my piece at 4,6 - 4,7 GHz.
With my mobo I use Medium LLC so my VCore Idle is slightly lower than full load (on regular I see little drop)
As for now, I have tested 4,4 GHz with 1,440 V
4,6 GHz with 1,520 V in testing.

I will post more info after more research.
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post #16 of 29
Quote:
Originally Posted by KarathKasun View Post

The Extreme 3 board has a 4+1 VRM design, it could be getting a bit hot if using a tower cooler. Mostly because tower coolers don't circulate air close enough to the motherboard to adequately cool the small heatsink on them.

On my 970 Extreme 3 setups I use a small fan on the VRM heatsink when going much above 4.4. Without the fan the VRM heatsink would quickly climb to 70-80c, meaning that the FET's are probably seeing close to their maximum rated temps. At temps that high their output starts to fall off, possibly causing voltage droop. BD just sucks so much power that 4+1 boards have trouble keeping up while overclocking.

Even so, I have used these boards to get 4.7 24/7 stable with FX-4100's while using additional cooling on the VRM heatsink.

To properly test, use OCCT. It will report voltages in realtime, as well as graphing them. This will allow you to see what your vcore is at full load, as well as how the voltage falls off with increased component temperatures as time goes on.

Also, on my FX-4100's, I have seen a large spread of chip quality. Some only need 1.45v for ~4.6 Ghz (that chip can go up to 4.75 100% stable), some need ~1.5v for the same speed (which is where they top out, regardless of voltage).
AsRock Extreme 3 can easily handle that 4300. I own 3 of the AsRock 970 Extreme 3. I have tried a 8150 with 1 core disable per module and I got it to 4.9ghz on all 3 mobo. I using a H100 and I had no fans on the VRM.
Quote:
Originally Posted by Wrynn.CZ View Post

It seems those chips have problems reach 4,8 GHz... I am currently testing my piece at 4,6 - 4,7 GHz.
With my mobo I use Medium LLC so my VCore Idle is slightly lower than full load (on regular I see little drop)
As for now, I have tested 4,4 GHz with 1,440 V
4,6 GHz with 1,520 V in testing.

I will post more info after more research.
What is your NB speed?
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post #17 of 29
I have raised NB clock to 2,6 GHz so it match my HT ... as far as i know, there are some improvement in overall performance when those two are close together. I Had to raise CPU-NB for +0,175 V. To be honest, i dont know if my default CPU-NB is 1,100 V or more, in my current bios mobo shows strange calculated value on this value and I dont want to install AMD Overdrive to check it
Edited by Wrynn.CZ - 2/3/13 at 12:13pm
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post #18 of 29
wrynn.cz whats that chip at gaming when overclocked
post #19 of 29
Quote:
Originally Posted by skitz9417 View Post

wrynn.cz whats that chip at gaming when overclocked
I switched from AMD 720 BE (OCed 3,4 GHz with unlocked 4th core on MA-790FXT-UD5P) and I see little improvement. I will run some real tests so I can put here numbers...
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post #20 of 29
ok
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