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300FSB FX-4300 Stress On the Core 4.8GHZ 1.608V 3900HT + Dead mobo - Page 9

post #81 of 176
Quote:
Originally Posted by Iwamotto Tetsuz View Post

I am using 2x HD7850 2GB cross fire
I pushed the FSB cause lower multiplyer and higher FSB has less stress on CPU so that basically means you can push a few more mhz out of the cpu with same voltage

Incorrect sir. The overall total clock will have about the same overall effect on stressing the hardware.

Example. U got 5ghz stable with 300 fsb. Change it so its just multi and you will be just as stable/ unstable.
post #82 of 176
Quote:
Originally Posted by Iwamotto Tetsuz View Post

I am using 2x HD7850 2GB cross fire
I pushed the FSB cause lower multiplyer and higher FSB has less stress on CPU so that basically means you can push a few more mhz out of the cpu with same voltage

For 7850's in Xfire there's not going to be any practical benefit to all the HT Link overclocking. I wouldn't bother going past ~3ghz.

There is no "FSB" on this platform. It's a reference clock.

Achieving higher speeds with less voltage from lower multipliers has diminishing or even reversing returns past a certain point. Most users report no advantages to going beyond ~220-230mhz reference clocks.
     
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post #83 of 176
Quote:
Originally Posted by mdocod View Post

For 7850's in Xfire there's not going to be any practical benefit to all the HT Link overclocking. I wouldn't bother going past ~3ghz.

There is no "FSB" on this platform. It's a reference clock.

Achieving higher speeds with less voltage from lower multipliers has diminishing or even reversing returns past a certain point. Most users report no advantages to going beyond ~220-230mhz reference clocks.

from the AMD FX Tuning Guide:

HyperTransport™ Reference Clock (HT ref. clk): The base clock for various clock domains on the AMD
“Scorpius” platform technology. HT ref. clock is 200MHz by default. CPU, CPU NB, HT Link and Memory clocks
are all linked to HT ref. clock. HT ref. clock adjustment is a good tool for fine tuning the various clocks to optimal
values. The HT ref. clock value itself doesn’t have any impact on performance.
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post #84 of 176
Overclock the clock!!! biggrin.gif
     
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post #85 of 176
Thread Starter 
Quote:
Originally Posted by mdocod View Post

For 7850's in Xfire there's not going to be any practical benefit to all the HT Link overclocking. I wouldn't bother going past ~3ghz.

There is no "FSB" on this platform. It's a reference clock.

Achieving higher speeds with less voltage from lower multipliers has diminishing or even reversing returns past a certain point. Most users report no advantages to going beyond ~220-230mhz reference clocks.
Hey thanks for the infor gonna try 240FSB with higher multiplyer and test the stabibility
But i am still pretty sure higher fsb is more stable you get much less stress on cpu once you get up to 240 significant changes but once you get past 250fsb it still goes up but only by little
post #86 of 176
Thread Starter 
Quote:
Originally Posted by mdocod View Post

For 7850's in Xfire there's not going to be any practical benefit to all the HT Link overclocking. I wouldn't bother going past ~3ghz.

There is no "FSB" on this platform. It's a reference clock.

Achieving higher speeds with less voltage from lower multipliers has diminishing or even reversing returns past a certain point. Most users report no advantages to going beyond ~220-230mhz reference clocks.

Quote:
Originally Posted by mastertrixter View Post

Incorrect sir. The overall total clock will have about the same overall effect on stressing the hardware.

Example. U got 5ghz stable with 300 fsb. Change it so its just multi and you will be just as stable/ unstable.
Tried 200-240FSB settings didn't get me any more stable
post #87 of 176
Quote:
Originally Posted by Iwamotto Tetsuz View Post


Tried 200-240FSB settings didn't get me any more stable
exactly but its not going to make you less stable either.
post #88 of 176
Thread Starter 
No luck at all with lowering voltage it did 1hours and 20mins of stress on a 1.56V after that played some games and then stressted again could stress more than 30 mins
increaced to 1.586V still unstable and windows froze so i left my cpu voltage back to 1.608V full load
Just to let you know I got my cpu in NZ since i live there and from my experience with my old fx8350 and this fx4300 90% of the amd CPU in nz has a lower bin it would require more voltage to overclock compared to cpu you could get in amrerica or china if i got this cpu in america probaly would be doing same specs 4.8GHZ but at 1.48 or 1.5V cpu voltage full load stable
I don't really like lowering voltage at all either unless its running over 74C at full load
Edited by Iwamotto Tetsuz - 7/13/14 at 2:55am
post #89 of 176
Thread Starter 
I used up my left over Cooler Master X1 Extreme Fusion and left it run stress test large data set for 11Hours and temps dropped from 66C to 61C at full load (the x1 is 4x more thermal conductive than my old thermal paste) Same old settings 4.8GHZ 1.608V full load
http://valid.x86.fr/4viskl
I'm pretty happy with my temps now since its at 61C full load
http://www.coolermaster.com/cooling/thermal-compound/extreme-fusion-x1/






post #90 of 176
we are makieng progerss 1.6v is still a little high for my tasts though see fo yuo can find a bstable clock at 1.5v
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