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[OFFICIAL] FX-8320/FX-8350 Vishera Owners Club - Page 242

post #2411 of 67351
Thread Starter 
Alright, well, pwnzilla earned a block.
Quote:
Originally Posted by sdlvx View Post

Looks to me like Gigabyte bus speed completely messes up CPUNB overclocking. I tried for hours to get CPUNB overclocked and I couldn't even get it at 2.3ghz with 213mhz bus and all sorts of voltage combinations (stock to very high). I ran CPU fine at 5.1ghz and 2130mhz CPUNB. Once I tried to get it up anywhere, nothing but disaster.

I also switched to F11 BIOS from F11a. I don't know if that had much to do with it but I'm running out of steam, it's getting late here.I just ran it at 2.4ghz stock CPUNB voltage and didn't have a single issue, passed IBT with flying colors.

That is interesting... I normally run NB/HT linked at 2200 and don't see it hit perf too bad, so I can afford to lower it if it means FSB clocking can bring temps and maybe even volts down a bit.
Quote:
Originally Posted by rubicsphere View Post

Does anyone have experience or heard of any with this particular board and piledriver:

http://www.newegg.com/Product/Product.aspx?Item=N82E16813138341&Tpk=biostar%20990fx

Some people swear by Biostar. As for myself, I haven't seen them in the top 3... ever. I rank them with MSI for AMD boards, only get them when you can't get anything else. There may be some quality there, but not enough for it to be bragged about on OCN all over the place like Asus, Giga, and ASRock.
Quote:
Originally Posted by tonyco View Post

Hi guys, I finally got a chance to install my FX-8350 and Corsair H100 cooler today. I haven't had too much time to mess around with it, but just for fun I put the clock up to 5.0ghz and the Vcore up to 1.513v. It seems to be running well. I'm liking the chip so far.


Why is your HT at only 2Ghz?
Quote:
Originally Posted by auraofjason View Post

It has quality phases, but only 4+1 of them, which may or may not be enough for a high oc on an 8 core. May not = explosion.

And explosions, while pretty, are bad. tongue.gif
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post #2412 of 67351
I thought the Biostar 990FX was 4+2 phase power.
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post #2413 of 67351
Thread Starter 
Quote:
Originally Posted by dixson01974 View Post

I thought the Biostar 990FX was 4+2 phase power.

http://www.overclock.net/t/946407/amd-motherboard-vrm-info-database-now-with-socket-fm2

You are correct.
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post #2414 of 67351
Quote:
Originally Posted by dixson01974 View Post

I thought the Biostar 990FX was 4+2 phase power.
Ah you're right, and after further research it seems it is just fine.

From: http://www.overclock.net/a/about-vrms-mosfets-motherboard-safety-with-high-tdp-processors
Quote:
However, take the Biostar TA890FXE [exact same as 990fx version], it comes with a similar 4+2 power phase. High amperage rating per transistor; completely rock-solid. It should be noted that an 8+2 phase system may not necessarily provide any more current than a 4+1 phase if the amount of amperage available to the transistors per phase is the same; however, the 8+2 phase system would still do so with more efficiency, stability, and with less heat output.
post #2415 of 67351
Looks like 8320s do need more volts, I've had to go to 1.5v to get 4.7ghz anywhere near stable.

With that I'm hitting 58c on the core temp and 65c on CPU temp after 20 IBT runs so I guess I've got no more head room with my cooling set up. It's a shame, I had 4.8ghz 24/7 in my head as a goal for this chip.
post #2416 of 67351
Quote:
Originally Posted by wolvers View Post

Looks like 8320s do need more volts, I've had to go to 1.5v to get 4.7ghz anywhere near stable.
With that I'm hitting 58c on the core temp and 65c on CPU temp after 20 IBT runs so I guess I've got no more head room with my cooling set up. It's a shame, I had 4.8ghz 24/7 in my head as a goal for this chip.

I am finding it to be the same way as with the 8120vs**50. I have yet to see anyone above 4.9 truly stable with an 8230. Amd mentioned about 4.8-4.9 with the 20's and about 5 with the 50's. But a lot on here seem to disagree with me since they feel that a 5ghz os boot is stable. wink wink.
Edited by pwnzilla61 - 11/4/12 at 1:11am
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post #2417 of 67351
Thread Starter 
Quote:
Originally Posted by wolvers View Post

Looks like 8320s do need more volts, I've had to go to 1.5v to get 4.7ghz anywhere near stable.

With that I'm hitting 58c on the core temp and 65c on CPU temp after 20 IBT runs so I guess I've got no more head room with my cooling set up. It's a shame, I had 4.8ghz 24/7 in my head as a goal for this chip.

Duuude, you need to add a sig rig. Or atleast make another rig that lists your PD hardware. I can't keep track of what everyone has from memory, and thus I can't help. tongue.gif

Click your username top right, find "Create a new rig", and follow the guide.

If you're on a giga board, adding some voltage to PLL can reduce the needed CPU volts for a given clock and thus reduce temps a bit.
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post #2418 of 67351
Quote:
Originally Posted by KyadCK View Post

Duuude, you need to add a sig rig. Or atleast make another rig that lists your PD hardware. I can't keep track of what everyone has from memory, and thus I can't help. tongue.gif
Click your username top right, find "Create a new rig", and follow the guide.
If you're on a giga board, adding some voltage to PLL can reduce the needed CPU volts for a given clock and thus reduce temps a bit.

I'll do a rig for the PD set up now. I've got an R2 Saber (very happy with it so far) and 8gb of 30nm Samsung RAM.

Just tweaked the PLL to 2.6v actually and it seems to of helped with stability. VCORE-1 on the board is hitting 75c though. Not sure if that is OK or not.
post #2419 of 67351
Quote:
Originally Posted by sdlvx View Post

What is your NB running at? It seems like NB affects memory bandwidth as well. I guess it has to do with AMD's IMC.


tighter timings, just like the phenom II. lower ht.nb+ tighter timings can wield better scores than just ghz alone with this arch, at least with pd.
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post #2420 of 67351
On a mission for the budget overclock build using stock cooler and cheap ass not matching value ram.

So far stable at 4.2GHz using stock v-core voltage of 1.38v, which is rather high frown.gif basically leaves me little to play with. Stock fan get loud under load even when not overclocked mad.gif

What is the most impressive, this might be because the ram is only 2x 2GB, is the overclock I can get out of these old DDR3-1333 modules. One has Elpida chips and the other Kingston.

The ram goes from 1333MHz all the way to 2133MHz biggrin.gif I am thinking that the memory controller in the Vishera is having a impact here.

Being a newbie to AMD overclocking, should I be tweaking anything else like the FSB, NB and/or
other voltages?


Edited by erase - 11/4/12 at 1:52am
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