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[OFFICIAL] FX-8320/FX-8350 Vishera Owners Club - Page 339

post #3381 of 67227
I usually do very high or custom leaving about 100mb free
post #3382 of 67227
Okay so with all the other boards that have LLC do you notice any change i V during load once your increase is established???

for me on my board my default voltage is set to 1.3625 and under load my voltage initially increases to 1.384 for about a minute solid and keeps that line perfect (im ussing OCCT to monitor this) and then it spikes up to 1.400 and then starts shifting between 1.384 and 1.400 every ten seconds and just goes back and forth and back and forth.

watching this closely this is what is creating my temperature wall on my H60 because my temps drop 5*C when at the 1.384 line then shoot back up to 60 when at the 1.400 line... is this simply because ASRock LLC is not as good as other LLC out there or is there a reason for this?
post #3383 of 67227
Quote:
Originally Posted by Covert_Death View Post

Okay so with all the other boards that have LLC do you notice any change i V during load once your increase is established???
for me on my board my default voltage is set to 1.3625 and under load my voltage initially increases to 1.384 for about a minute solid and keeps that line perfect (im ussing OCCT to monitor this) and then it spikes up to 1.400 and then starts shifting between 1.384 and 1.400 every ten seconds and just goes back and forth and back and forth.
watching this closely this is what is creating my temperature wall on my H60 because my temps drop 5*C when at the 1.384 line then shoot back up to 60 when at the 1.400 line... is this simply because ASRock LLC is not as good as other LLC out there or is there a reason for this?


Does your line look like this?
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post #3384 of 67227
2012-11-16-02h44-Voltage-CPUVCORE.png

it's worse at the start and seems to get more stable as time goes on..... just looks, ugly IMO
post #3385 of 67227
Quote:
Originally Posted by Covert_Death View Post

2012-11-16-02h44-Voltage-CPUVCORE.png
it's worse at the start and seems to get more stable as time goes on..... just looks, ugly IMO

that looks worse than it is. if you can adjust for that initial jump (I assume that you have the LLC set to do that when load is applied) from then on you only have a 0.008v differential every 10 sec or so. Thats actually a decent line. (0.007%)
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post #3386 of 67227
Quote:
Originally Posted by Tslm View Post

So with Bulldozer it was figured out that higher VIDs generally meant you had a chip that was a lot less leaky and therefore clocked alot better on air and water because you didn't run into the massive wall of heat so fast. Has anyone done any comparisons with Piledriver? I remember with FX-8150s 1.3v+ was quite good, and chips as low as 1.225v (the ones I always got frown.gif) were ridiculously hot. It seems like VIDs with Piledriver are alot higher in general (1.35v+) which sounds promising if AMD is following a similar sort of procedure.
This might be true because I returned my first FX-8320, it had a stock VID of 1.3625v and my new chip has a stock VID of 1.4v, however at the same voltages and frequency my new chip is 5 to 10 degrees cooler.
post #3387 of 67227
4.739GHz @ 1.424v Was on my 12th hour Prime95 and then power went out in the house. Annoying..mad.gif
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post #3388 of 67227
Quote:
Originally Posted by F3ERS 2 ASH3S View Post

Wierd question as it seems to be but has anyone downed the fsb below 200 and just raised all the other multipliers up? It seems counter intuitive but i remember back in the day it helped get higher clocks im talking pre athlon x2 though

Unfortunately you can't lower the AMD fsb below 200.
Quote:
Originally Posted by Tslm View Post

So with Bulldozer it was figured out that higher VIDs generally meant you had a chip that was a lot less leaky and therefore clocked alot better on air and water because you didn't run into the massive wall of heat so fast. Has anyone done any comparisons with Piledriver? I remember with FX-8150s 1.3v+ was quite good, and chips as low as 1.225v (the ones I always got frown.gif) were ridiculously hot. It seems like VIDs with Piledriver are alot higher in general (1.35v+) which sounds promising if AMD is following a similar sort of procedure.

I asked a while back if the OP could include this in the overclock listing because it did represent "Golden Chips" on Bulldozer.

yeah high vid ones ran cooler but hit a vid wall sooner
low vid ones ran hotter and didn't clock very high

it was those middle ones, 1.3-1.325vid that were a good balance. (stock voltage with turbo disabled)
Edited by ComputerRestore - 11/16/12 at 4:34am
post #3389 of 67227
Someone was asking about Folding@Home performance the other day for the Vishera line. My FX-8320 at 4.6GHz gets about 25K-35K PPD. This was after some tweaking and adding advanced flags.
post #3390 of 67227
Thread Starter 
Quote:
Originally Posted by anubis44 View Post

Quote:
Originally Posted by stickg1 View Post

I see a direct correlation between the temperature of my NB and my OC's failing. As long as I can keep the NB under 70c I'm good. I've yet to repaste and reseat, I will do it tomorrow and see if I can get better results.

Yes, please. I'm very curious to know whether the Gigabyte UD3's north bridge cooling issues can easily be resolved. If only a certain mod or technique can fix this issue, I'd go out and buy one tomorrow, since they're on sale for $115 locally (after $10 MIR). I really like the slot layout and the features of this board (and yes, even the all-black colour scheme is very cool), so please, please tell me that you only had to repaste and reseat and all is cool in VRM/northbridge land on this board. I just doubt much can be done without a heatpipe linking the two heatsinks.

What NB stability issues? Seriously, it does get hot, but it hasn't effected anything, and I have not replaced the paste. I'm assuming Temp 3 is NB:


Ignore the score, Cine was for quick temps, I have a lot running in the background.
Quote:
Originally Posted by ComputerRestore View Post

I had a bit of an idea too about the Memory/Frequency Scaleing with Piledriver as well.

Since it's not fully clear (as far as I know) what this bottlekneck is with memory scaling -cpu overclock and memory overclock- why not make a bottlekneck in the Ram.

Not entirely sure if this would work, but here's the idea. Running only one stick of Ram, test the scaling, up to whereever, 2166 - 2400. To see if it scales higher than a Dual Channel setup,
which would indicate that it's most likely CPU only. If it scales the same as dual channel mode then it's something else.

Is my thinking right on that? 1 stick should struggle to feed the CPU, thus benefit more from higher clocks/ greater scaling with CPU overclock? (with the obvious lower bandwidth)

Not quite, due to how the AMD memory controller works.

In reality, you don't have "dual channel" per say, you have 2 memory channels. They don't operate in 128-bit, they operate as 2 separate 64-bit. Each channel can be used by a different core at the same time.

This is what is known as UnGanged mode. Ganged forces the 2 controllers to work together. You can change this in the BIOS.

More then likely, the CPU/NB can't keep up after a point. As much as NB OCs don't seem to help normally, it would be interesting to see how 2400 fares with the NB at 2.6.
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