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[OFFICIAL] FX-8320/FX-8350 Vishera Owners Club - Page 324

post #3231 of 67250
Quote:
Originally Posted by F3ERS 2 ASH3S View Post

Quote:
Originally Posted by Solders18 View Post

I am glad it helps you but not happy I need a new psu lol

yeah i feel for you i may have to put my oc off till i order one

although i could drop 2 cores an oc the rest fo gaming lol

I can still run 4.6 at 1.475 with sli. But barely.
post #3232 of 67250
Quote:
Originally Posted by Solders18 View Post

I can still run 4.6 at 1.475 with sli. But barely.

whats crazy is that I know i can boot to 5Ghz.. just isn't stable enough to run all 8 cores on intensive applications.. which makes me anxiouse to get a bigger supply cause hitting 5 is easy on my board (as long as it is the power consumption)
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post #3233 of 67250
Quote:
Originally Posted by F3ERS 2 ASH3S View Post

Quote:
Originally Posted by Solders18 View Post

I can still run 4.6 at 1.475 with sli. But barely.

whats crazy is that I know i can boot to 5Ghz.. just isn't stable enough to run all 8 cores on intensive applications.. which makes me anxiouse to get a bigger supply cause hitting 5 is easy on my board (as long as it is the power consumption)

I had mine up to 4.8 last night but ran out of vcore to get it stable
post #3234 of 67250
Quote:
Originally Posted by Solders18 View Post

I had mine up to 4.8 last night but ran out of vcore to get it stable

when i get home tonight im going to do a cpuz at 5.. just cause.. tongue.gif funny thing is at 1.46 my voltage shows 14v (rounding) and when i put it to 1.5 it dropped to 13v
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Wet Billy
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post #3235 of 67250
Quote:
Originally Posted by Red1776 View Post

I'm glad you like your board and wouldn't try to talk you out of it, but there is more to having LLC then just adjusting to offset the Vdroop. when you adjust to compensate for the loss or drop in voltage under load you are also using more more juice all the way around. even more important is the fluctuation in voltage that causes instability and is harder on the CPU and components in general.
Its the difference between this

and this

This is one example with the same CPU in two revisions of the same model motherboard, one with LLC function and one without LLC.
The one without LLC (top image took more than .10v and topped out at 4.7GHz. It also ran much hotter.
The same CPU in the revision with LLC took .10v less and OC'ed 300MHz higher to 5.0GHz
If you notice when PSU's are benchmarked, the most important aspect they examine is the amount of ripple produced. you can draw a consistent line between quality,price, and efficiency commensurate with the units with lower ripple.
The amount of voltage fluctuation varies from board to board, however motherboards with LLC function consistently use less energy and overclock higher assuming all else being equal.
Thanks for taking the time to post the information helpful in understanding how LLC works.
Is the .10 V difference measured while under full load? idle? or is it what the software or bios has it set at? In the absence of ripple or any other outside factor, wouldn't the chip need the same voltage to run a given speed at 100% load regardless of what board its on? I'd have to see it for myself to really get behind the idea that LLC is that effective, so many things can skew a test. Having said that, the only board I have that has LLC is my 990FX extreme 3 Asrock and it's probably not fair to compare it against the GD-80. I haven't had nearly as good a luck with it as I have with my MSI boards when pushing for big clocks. Again, it may not be fair to compare them though because the MSI's I have are fairly high end.
It's been my experience with this board when overclocking the voltage to the cpu drops by .07 volts when it hits 100% usage on all cores vs idle. However once at that level it seems to stay at that level very consistently ( the graph in OCCT is very flat).
Can you use the graph in OCCT to measure how well your psu is performing, or is it not that accurate? I have a PC power and cooling 910 watt unit powering the FX machine, any thoughts as to the quality of the PC power and cooling 910 watt silencer powering my FX rig?
Thanks again for the reply
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post #3236 of 67250
Quote:
Originally Posted by F3ERS 2 ASH3S View Post

Quote:
Originally Posted by Solders18 View Post

I had mine up to 4.8 last night but ran out of vcore to get it stable

when i get home tonight im going to do a cpuz at 5.. just cause.. tongue.gif funny thing is at 1.46 my voltage shows 14v (rounding) and when i put it to 1.5 it dropped to 13v

I had to go up to 1.5325 to get it even stable enough to start occt doh.gif
post #3237 of 67250
Quote:
Originally Posted by anubis44 View Post

F3ERS 2 ASH3S, I'd be interested to know what you think about your MSI 990FXA-GD65V2 motherboard. My 8350 is being shipped as we speak, and I still haven't made a final decision about the right motherboard for it. I want to overclock it using a good closed-loop system or possibly an easy do-it-yourself custom water system (as I've never built one before). Most important considerations for me are:
-stability/reliability
-adequate cooling of VRMs/northbridge
-adequate spacing between x16 PCI-E slots for 2 graphics cards (I'm just not going to go past 2 given the lack of scaling I see)
-reasonable price - (I'll pay more for genuine benefits for the above characteristics, but I'm not interested in paying top dollar for e-peen cred. - eg. I don't need an Asus Formula X Maximus Imperial Republic of Gaming Death Star motherboard for $300 because it has glow-in-the-dark reset button right on the motherboard for overclocking on cryogenic-grade liquid nitrogen. Excellent VRM/northbridge temps and top performance on water with a small, non-illuminated reset button will do me just fine! I want performance, not glam)
My current choice is ending up as the Gigabyte 990FX-UD7, but before I pull the trigger on that board, I just wanted to hear from a current MSI user running a Vishera chip so as to leave no stone unturned. Also, if you could put your finger on your northbridge chip after the machine has been on for a while and tell me whether you fear receiving 2nd degree burns, I'd really appreciate it. The Gigabyte 990FX-UD3 I tried gave me that fear.
Thanks! Really appreciate it!

heres some links if your interesed

http://shop.amd.com/us/All/Detail/Motherboard/990FXA-GD65%20V2?SearchFacets=category%3AMotherboard <-- prices
http://www.msi.com/product/mb/990FXA-GD65.html <--- specs and view
http://www.bit-tech.net/hardware/2011/11/22/whats-the-best-bulldozer-motherboard/4 <--- review of V1 (which v2 is just updated Bios I confirmed with MSI)
http://www.overclocking-tv.com/content/reviews/11420/msi-990fxa-gd65-reviewed/ <--- another review
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Wet Billy
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post #3238 of 67250
Quote:
Originally Posted by Solders18 View Post

I had to go up to 1.5325 to get it even stable enough to start occt doh.gif

maybe i won the lottery and have an uber amazing chip after i get everything sorted tongue.gif
Wet Billy
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Wet Billy
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post #3239 of 67250
you are concentrating on the LLC question. I have had a couple of blue screens referring to memory management. I think I tried to follow the dictates of a poster here to keep the speeds down and the timings tight. It did not work for me. It works beter for me to keep my 2133 G. skill memory at 2133 and loosen the timings liberally. I have put my NB frequency close to the memory at 2200 and my HT frequency does not do too well for system stability if I raise it above 2200 to 2400. I have only been able to keep stable at 4.4 to 4.5 GHZ for cpu frequency. I have my cpu voltage at 1.43 volts. I have LLC set at medium, high and 120 over voltage protection. My temps are at low load at 94 Farenheit at high load 107 Farenheit . I have a Corsair H100 liquid cpu cooler. Yesterday I ran Prime 95 with the tight memory timings at 1866 and essentially 3 modules out of 4 on FX-8350 shut down. when at full load. My cpu batch is 1236 whicxh is supposed to be a pretty good batch. I have booted up to 4.7 GHZ but never achieved stability there or at 4.6 GHZ. I really am not sure what the issue is except my memory can't take tight timings and I have little desire to up the voltage on it. It is stock at 1.65 volts to run at 2133. Any thought out analysis would be appreciated. I have tested the memory fairly thoroughly and it passes all tests.
post #3240 of 67250
Quote:
Originally Posted by os2wiz View Post

you are concentrating on the LLC question. I have had a couple of blue screens referring to memory management. I think I tried to follow the dictates of a poster here to keep the speeds down and the timings tight. It did not work for me. It works beter for me to keep my 2133 G. skill memory at 2133 and loosen the timings liberally. I have put my NB frequency close to the memory at 2200 and my HT frequency does not do too well for system stability if I raise it above 2200 to 2400. I have only been able to keep stable at 4.4 to 4.5 GHZ for cpu frequency. I have my cpu voltage at 1.43 volts. I have LLC set at medium, high and 120 over voltage protection. My temps are at low load at 94 Farenheit at high load 107 Farenheit . I have a Corsair H100 liquid cpu cooler. Yesterday I ran Prime 95 with the tight memory timings at 1866 and essentially 3 modules out of 4 on FX-8350 shut down. when at full load. My cpu batch is 1236 whicxh is supposed to be a pretty good batch. I have booted up to 4.7 GHZ but never achieved stability there or at 4.6 GHZ. I really am not sure what the issue is except my memory can't take tight timings and I have little desire to up the voltage on it. It is stock at 1.65 volts to run at 2133. Any thought out analysis would be appreciated. I have tested the memory fairly thoroughly and it passes all tests.
My cpu is batch 1235 and I have the same Ram (and H-100). So far I have the best stability/performance @ 9-12-11-29-28 2016 mhz. But to be honest, memory tweaking is the weakest part of my overclocking game tongue.gif
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Ryzen Shine!
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