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[OFFICIAL] FX-8320/FX-8350 Vishera Owners Club - Page 566

post #5651 of 67227
Well I tried 3 x 7970's with dedicated phsyX, and i am not impressed. Back to quadfire!
anyone else try a dedicated PhysX card? and what did you think?
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post #5652 of 67227
hey peeps smile.gif

i bought a FX8350, on GIGABYTE GA-990FXA-UD3 AM3+ AMD 990FX,
installed it yesterday, but it wont boot,
vid card starts spinning, stops, starts spinning ..etc,
thought i did something wrong, so i took it all apart again,
putt together again, checked all cables like 5x, same problem,
hdd led blinks a few sec, vid card starts spinning, repeat...
no signal on monitor, wont even show bios or anything,
tried 2 different vid cards..

im puzzled, so im looking on the net, one answer was,
i need a bios update to make it work?
FX8350 doesnt work on my mobo?, it worked with the 1100T,
problem is i sold it, so cant check if its something else see..

i thought it was the old psu im using, its only 400Watt,
its a oldy tho, maybe it cant handle the startup power fx8350 needs?
not sure anymore what bios version is installed,
since i gave the comp to my son,
if it seems that its my bios, how can i get a new/latest one on?,
i dont have another cpu i can use for it...
Edited by VonDutch - 12/16/12 at 7:20am
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post #5653 of 67227
Thread Starter 
Quote:
Originally Posted by twitch_alucard View Post

How are the 8350's for OCing? just curious what kind of overclocks ill be able to achieve with my H80 if i get a half decent chip.

Look in the OP.
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post #5654 of 67227
Hi!

Happily suprised to see so many people offering their assistance!

Now where to start..... I couldnt help myself, but after reading all the comments I came to my work place on Sunday and started *playing*

Right now it is happily priming at 4800Ghz without locking up. Its not been going long about 10 minutes, but thats not the important thing, the fact that it is no longer instantly locking up leaves more questions than answers.

The only setting ive changed is ive dropped the CPU/NB to 1.2v as "The Sandman" suggested.
Quote:
Originally Posted by cssorkinman View Post

Same thing happened to me, had it running at 5 ghz like the first day I had this rig, then i couldn't get it prime stable over 4.8 or so , I have no Idea what changed .
This is what I think of Prime on the Vish - "Running prime 95 on the Vishera is a little like an adventure game at 4.6 Ghz you encounter a troll, 4.8 Ghz you run into an Ogre on steroids, as you journey into the land of 5 ghz you are met at the border by a Minotaur who voted republican and is still pissed off about the outcome of the election tongue.gif"

As ive read we are not alone with prime95 issues, but im not one to think that its because of the program, its because there IS something not quite right with our set ups.

My gripe was that it was locking up instantly, which it wasnt doing before and isnt doing it now.

When prime95 does fail, it stops with *warning* but not with an error, havnt managed to find info that explains what the cause of this is and wht the difference is between a *warning* and an error.
Quote:
Originally Posted by The Sandman View Post

1.525v Vcore for 1.48GHz seems high compared to my very similar setup which is 20 runs "Max" for IBT stable and passes 24 hrs of OCCT LinPack using 1.476v (0.156250) Vcore in bios.
Prime95 and Vishera don't play well together as has been noted in previous posts. The last time I ran prime95 it failed just after the one hour mark (one core stopped). That was a bios update back and on a slightly earlier version of P95.
I've learned it's very easy to over volt and IMHO Vishera is a lot more sensitive than previous models. Settings in Digi + II can be of a big help rather than always increasing a given voltage.
Have you tried slightly less CPU/NB voltage? I have 16GBs and a NB Freq at 2574MHz and use 1.231v (0.068750) in bios.
Make sure to double check bios settings, it is possible a few might change after a hard reboot. It's happened to me.
I do have a lot of work to do yet and am starting on that again here shortly. This supposed wall around 4.8GHz on Vishera reminds me so much of the wall on my Thuban when going from 4.0GHz to 4.1 and finally 4233MHz. Hoping this latest bios and newer version of P95 may help stability in P95 but not holding my breath on that one.

High with regards to voltage is a relative term in this context as I think we need to take into context cooling and temperatures when we say what is *high* .

Also as os2wiz has said, not all chips are the same, different batches different characteristics, saying that, my CPU looks to be average, im hoping that I can get more out of it as temps i think are good with regards to the voltage im pushing and speed im running.

Prime95 is past the 25 min mark and package temperature is 47C while CPU is 57C.

What do you mean by *(0.156250)* & (0.068750) ??

Anybody know if ANY of the results in the Vishera database are prime95 stable for at least a couple of hours ?

As those results look to be WAY out of reach for my CPU.
Quote:
Originally Posted by F3ERS 2 ASH3S View Post

I agree he is overvolting. there is no reason why it should be that high.. people running 5Ghz+ are running those type of volts.. I would expect to see around 1.4v at the most for 4.5

As youve noted later its 4.8Ghz
Quote:
Originally Posted by os2wiz View Post

The core voltage of 1.525 is not necessarily high if the chip is from a batch that doesn't over clock well. His vid is also high. When I attempted 4.8 GHZ my voltage had to go to 1.52 volts Batch 1236 vid 1.325 v. . I have an H100 and at full load was doing core temps of 64-65 celcius. That is why I decided to back down to 4.65 GHZ where my core voltage is 1.43 I have tried every small incre,mnrt increases both multi only and fsb only and a combination. Nothing will get me to 4.8 stableI without high temps and and high voltages. I just think I got a bastard of a chip. I have used LLC at high or ultrahigh. Even played with VDDA to see if that would lower my voltage requirements. I have a Crosshairs V board. Right now set at 20 multi and 231 fsb.

Very valid comments, whats is generally seen as a low VID ? And what is the relation, if any, between VID and CPU voltage/temperature for high clocks ?
Quote:
Originally Posted by F3ERS 2 ASH3S View Post

i would beg do differ on that.. you can almost hit 4.4 with stock voltages,, so an entire .2v increase is insane for a 100-150mhz difference if that was the case then he got the worst of the worst in fact almost RMA able
but the thing is that he was going for prime stable and was upping the voltage in order to do it.. this will go back to the prime not working for these chips.. I can't remember for sure but I do think that the only ones that is has ran ok on are for the chips that are being supercooled by good water of higher.. I do no think that it has passed with anyone on air over 4.6
I bet if he dropped it down to 1.4v and ran IBT or OCCT that he would be stable

See many people running IBT and / or OCCT as seems it is less taxing on the CPU ?
Quote:
Originally Posted by ihatelolcats View Post

i need that much voltage on my 8320 for ibt stability at 4.8
considering an rma for it is laughable though

Well, as we know most of the 8320 are binned 8350 lol
Quote:
Originally Posted by F3ERS 2 ASH3S View Post

im talking 8350 @4.48.. if his chip needs 1.5v to hit that there is something very very wrong. I was pointing out that he is definitely overvolting because he was trying to get prime stable.
8320's are different story's and besides 4.8 is pretty good for that voltage

As said above its not 4.5Ghz
Quote:
Originally Posted by os2wiz View Post

Of course it is "high" what I am saying 4.8 at 1.52 is not unheard of. That is the best I can do with my cruddy chip. If I could return it for a better chip I would, but it is not defective in the normal sense of defective. Now I may have misread what he stated but I thought he had a FX 8350 at 4.8 GHZ. I did not read his original post I saw it in quotes, maybe I read a typo.

Yup you read correctly, lol

35 mins now package temps dropped to 43C as on bigger FFT length....
post #5655 of 67227
Thread Starter 
Quote:
Originally Posted by mongoled View Post

Very valid comments, whats is generally seen as a low VID ? And what is the relation, if any, between VID and CPU voltage/temperature for high clocks ?

Low VID: (1.3-1.325v)

Lower voltage, higher temps. "Best" for extreme cooling that can take the heat (LN2).
High VID: (1.375-1.4v)

Higher Voltage, lower temps. "Best" for light cooling (think 212+), but it'll cap out early due to voltage.
Mid VID: (1.325-1.375v)

Mid Voltage, Mid temps. "Best" for heavy cooling (NH-D14, H100, custom loop, etc). You have to deal with the temps, but the voltage isn't so high that it'll cap early.

There are exceptions to every rule, like a dud that's both high voltage and high temps, and golden chips with lower on both, etc.
Quote:
Originally Posted by mongoled View Post

See many people running IBT and / or OCCT as seems it is less taxing on the CPU ?

IBT pushes the CPU harder then Prime, and temps will be hotter while running it. OCCT uses the same general base as IBT, but is a different test.
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post #5656 of 67227
Quote:
Originally Posted by VonDutch View Post

hey peeps smile.gif
i bought a FX8350, on ga 990fxa d3,
installed it yesterday, but it wont boot,
vid card starts spinning, stops, starts spinning ..etc,
thought i did something wrong, so i took it all apart again,
putt together again, checked all cables like 5x, same problem,
hdd led blinks a few sec, vid card starts spinning, repeat...
no signal on monitor, wont even show bios or anything,
tried 2 different vid cards..
im puzzled, so im looking on the net, one answer was,
i need a bios update to make it work?
FX8350 doesnt work on my mobo?, it worked with the 1100T,
problem is i sold it, so cant check if its something else see..
i thought it was the old psu im using, its only 400Watt,
its a oldy tho, maybe it cant handle the startup power fx8350 needs?
not sure anymore what bios version is installed,
since i gave the comp to my son,
if it seems that its my bios, how can i get a new/latest one on?,
i dont have another cpu i can use for it...

i see alot of knowledge after my post,
noone had a clue about my question?
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post #5657 of 67227
Quote:
Originally Posted by KyadCK View Post

Low VID: (1.3-1.325v)
Lower voltage, higher temps. "Best" for extreme cooling that can take the heat (LN2).
High VID: (1.375-1.4v)
Higher Voltage, lower temps. "Best" for light cooling (think 212+), but it'll cap out early due to voltage.
Mid VID: (1.325-1.375v)
Mid Voltage, Mid temps. "Best" for heavy cooling (NH-D14, H100, custom loop, etc). You have to deal with the temps, but the voltage isn't so high that it'll cap early.
There are exceptions to every rule, like a dud that's both high voltage and high temps, and golden chips with lower on both, etc.
IBT pushes the CPU harder then Prime, and temps will be hotter while running it. OCCT uses the same general base as IBT, but is a different test.

Hi!

Thanks for that information.

Prime95 locked up the PC at almost exactly one hour.

Package temp was 49C at the time.

I cant pinpoint the cause.

After the forced shutdown my resolution had defaulted to 800x600, rebooted again and it returned to normal.

And guess what, instant lockup when I run prime95 !!

I checked the mobo for heat, but nothing is remotely hot.

Going to leave it switched off for 30 mins and then see if I still get instant lockup.

Im totally stumped.
Edited by mongoled - 12/16/12 at 3:03am
post #5658 of 67227
Quote:
Originally Posted by VonDutch View Post

i see alot of knowledge after my post,
noone had a clue about my question?
Sorry I dont know anything abt your motherboard ....

:-(
post #5659 of 67227
post #5660 of 67227
Thread Starter 
Quote:
Originally Posted by mongoled View Post

Quote:
Originally Posted by KyadCK View Post

Low VID: (1.3-1.325v)
Lower voltage, higher temps. "Best" for extreme cooling that can take the heat (LN2).
High VID: (1.375-1.4v)
Higher Voltage, lower temps. "Best" for light cooling (think 212+), but it'll cap out early due to voltage.
Mid VID: (1.325-1.375v)
Mid Voltage, Mid temps. "Best" for heavy cooling (NH-D14, H100, custom loop, etc). You have to deal with the temps, but the voltage isn't so high that it'll cap early.
There are exceptions to every rule, like a dud that's both high voltage and high temps, and golden chips with lower on both, etc.
IBT pushes the CPU harder then Prime, and temps will be hotter while running it. OCCT uses the same general base as IBT, but is a different test.

Hi!

Thanks for that information.

Prime95 locked up the PC at almost exactly one hour.

Package temp was 49C at the time.

I cant pinpoint the cause.

After the forced shutdown my resolution had defaulted to 800x600, rebooted again and it returned to normal.

And guess what, instant lockup when I run prime95 !!

I checked the mobo for heat, but nothing is remotely hot.

Going to leave it switched off for 30 mins and then see if I still get instant lockup.

Im totally stumped.

Heh, things like this are why we've been more reliant on IBT, OCCT and Overdrive. tongue.gif

Don't feel bad if you cant get Prime stable, see if it's good for everything else. If only Prime is having problems (and I mean only Prime...), then all that's happened is you've got the same problem as about half the people in this thread. Stability is what you make of it. thumb.gif
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