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[OFFICIAL] FX-8320/FX-8350 Vishera Owners Club - Page 752

post #7511 of 67492
Quote:
Originally Posted by Deadboy90 View Post

Ah yes its 1600 memory, sorry i was going by what CPUZ reads it as I sould have specified, I added my rig to my sig so check it out. Its a 8320 and temps arent the issue, my case is cracked open like how I do when stress testing and the socket temps are under 60c.

I kinda figured.. the memory isn't OC is it? I only ask because you said you thought it might be the memory.

Also, you should probably stress test it with everything under normal conditions (unless you are just checking vdroop, in which case you test with C'N'C off if you want to check the mobo's actual vdroop, as C'N'C adds a little more voltage drop), but the case should be under normal usage conditions with the side and everything on, fans at normal speed if they are adjustable.

What is your CPU cooling? The 8320 obviously can't reach 4.0 GHz+ as easily as the 8350 under normal conditions since it's a 500 MHz OC (whereas the 8350 is 4.0-4.2 GHz stock)...
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post #7512 of 67492
Quote:
Originally Posted by sdlvx View Post

Guys, I found something really, really odd.

So, I was digging around my BIOS and I decided to turn off thermal throttling on my 990FXA-UD5. I saw temps were fine and in the upper 50s lower 60s under load, and critical is at 90c and warning is 70c.

Anyways, long story short, I found out that even though my temps were all under 62c, my motherboard was actually lowering my CPU speed and voltage, even though it didn't show up as being lowered. How do I know? It was doing this in Linux and it would be baking textures would take way long and temps would be really low for some reason (like 40c max) and renders would take a lot longer than normal.

This thing would just run poorly, yet even in Windows CPUZ and everything else would report proper frequencies and voltages.

I turned off thermal throttling and now temps are a lot higher (mid 60s) and it's a lot less stable.

But HWMonitor is telling me tmpin0 is 25c max with IBT, tmpin1 is 39c and tmpin2 is 61c (with throttling off).

Is this just a Linux thing that was throttling me back or did I find something? Did I find something good or have I been a dumbass this entire time?

EDIT: also, I found IBT only reports unstable system if it gets different results. You can get a total **** result for every run and it'll say you're stable.
And if it's anything I saw increase in IBT performance turning throttling off (even though my temps were not near 70c before).

So, what is this? Linux? Gigabyte BIOS? Secret of Piledriver? Or just me screwing up and leaving thermal throttling on when everyone else turns it off?

EDIT 2: Well, for anyone who is interested. I had to bump the volts up a bunch (I'm at 1.62v and 5ghz now) and I got it kind of stable in IBT. I also got the right result back for most of the runs (3.69....).

I'm running prime95 now with these volts. About to come up on 10 minutes of 5ghz without an error.

I am starting to think that the AVX/FMA/etc part of Piledriver is very very weak and it takes a lot of volts to make that part of the chip not blow when you overclock.

For most people it's not going to matter since there's not a lot of things that use AVX/FMA/etc, but if you compile your own software (like gentoo =[) and you need AVX/FMA/etc you're gonna need a lot of volts.

Were you stressing the CPU when it was lowered? Do you have APM, Turbo, or C'N'C enabled? I doubt it was Linux. Most likely one of the many settings in the BIOS that can throttle the CPU automatically depending on load. What speed are you running at (I probably missed an earlier post about some of this)?

1.62v for stable is WAY too high. Unless you don't care about frying the chip, stay under 1.55v. Just my advice. I have a friend who fried his 8150 @ 1.57v after a couple weeks and it was rated @ 1.55v max like the 8350. I can't recommend breaking rated voltages unless you are prepared to buy a new chip. Be careful.
Edited by Clowerweb - 1/22/13 at 12:08am
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post #7513 of 67492
Quote:
Originally Posted by Clowerweb View Post

Were you stressing the CPU when it was lowered? Do you have APM, Turbo, or C'N'C enabled? I doubt it was Linux. Most likely one of the many settings in the BIOS that can throttle the CPU automatically depending on load. What speed are you running at (I probably missed an earlier post about some of this)?

1.62v for stable is WAY too high. Unless you don't care about frying the chip, stay under 1.55v. Just my advice. I have a friend who fried his 1850 @ 1.57v after a could weeks. Be careful.

I have APM, Turbo. CnC all disabled. It just happened in Windows now too so it doesn't seem like Linux at all. I added another edit.

I want to see if I can invoke it happening again running these volts and letting prime95 do its thing, but I have a feeling this chip isn't going to last long if I keep doing that.

I've been running 1.58v for a while now and I think it's been fine, unless I've managed to destroy it already and these are just the symptoms. I don't really care if it dies though. It was this or a 3930k and I wanted something to beat on. I had that stupid i7 920 for almost 5 years and I was so bored with it.

Temps are normally in the 50s with my loop so I can deal with the temps. A part of this too is that I want to see if 1.55v is really what it's cracked up to be. Last time I went to my parents I was playing with my old Opteron 165 and I was googling around for max vcore, and everyone said 1.55v but threads were full of people running mid 1.6v range for years without issue.

I guess it's just luck of the draw. I wouldn't be surprised if Piledriver could take more volts than Bulldozer though. GloFo 32nm used to suck complete skunk anus and now it seems somewhat better.

EDIT: But even if I am destroying this chip at least I'm providing valuable information. I'm sure there's a lot of people who would want to know if a chip will blow at 1.62v and in the 50c range, and I'm kind of curious too.

It'd be one thing if I came in here and was upset, but if this thing ends up unstable at 3ghz and 1.5v because I boned it I'm fine with it. It's not the first chip I'd have toasted. Although it'd be the first one that I liked and I wouldn't go, "YES ITS FINALLY DEAD!" like that P4 prescott I had.
Edited by sdlvx - 1/22/13 at 12:10am
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post #7514 of 67492
Quote:
Originally Posted by sdlvx View Post

I have APM, Turbo. CnC all disabled. It just happened in Windows now too so it doesn't seem like Linux at all. I added another edit.

I want to see if I can invoke it happening again running these volts and letting prime95 do its thing, but I have a feeling this chip isn't going to last long if I keep doing that.

I've been running 1.58v for a while now and I think it's been fine, unless I've managed to destroy it already and these are just the symptoms. I don't really care if it dies though. It was this or a 3930k and I wanted something to beat on. I had that stupid i7 920 for almost 5 years and I was so bored with it.

Temps are normally in the 50s with my loop so I can deal with the temps. A part of this too is that I want to see if 1.55v is really what it's cracked up to be. Last time I went to my parents I was playing with my old Opteron 165 and I was googling around for max vcore, and everyone said 1.55v but threads were full of people running mid 1.6v range for years without issue.

I guess it's just luck of the draw. I wouldn't be surprised if Piledriver could take more volts than Bulldozer though. GloFo 32nm used to suck complete skunk anus and now it seems somewhat better.

If it's stable @ 1.6v, it's not dead yet, but you could be pushing it. What frequency are you trying to run?
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post #7515 of 67492
Quote:
Originally Posted by Clowerweb View Post

If it's stable @ 1.6v, it's not dead yet, but you could be pushing it. What frequency are you trying to run?

Just 5ghz stable in IBT with the AMD binaries and Prime95. Oddly enough, I saw IBT with AMD binaries cough up an error quicker than Prime95. I think it may be time to question the conventional wisdom in this thread about Prime95 and IBT. I used to reject Prime95 but after this and seeing this crazy ass oddities in performance I don't know.

I've never seen a chip derp out and lose massive performance like this while still saying it's at 5ghz.

I'm also starting to wonder if there's things you can do to invoke this massive performance degredation besides overvolting like this and overclocking. It felt like it was running half speed. Maybe part of why AMD FX blows so hard in SC2 and Shogun 2 has to do with the fact that the code there is invoking whatever I"m invoking and causing the chip to run in neutered mode even though it's telling you it's fine.

I'm gonna play with it some more tomorrow. If I do roast this chip I will just run it stock and put it in an mATX render node. I could definitely use it and I know someone else that needs a net render render node too. So it's not the end of the world if this one dies.

For science and bravery. I need sleep though. Hopefully someone chimes in and investigates this further that has a bunch of 8350s laying around. I really don't believe I've ever seen a chip do this before.
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post #7516 of 67492
Quote:
Originally Posted by sdlvx View Post

Just 5ghz stable in IBT with the AMD binaries and Prime95. Oddly enough, I saw IBT with AMD binaries cough up an error quicker than Prime95. I think it may be time to question the conventional wisdom in this thread about Prime95 and IBT. I used to reject Prime95 but after this and seeing this crazy ass oddities in performance I don't know.

I've never seen a chip derp out and lose massive performance like this while still saying it's at 5ghz.

I'm also starting to wonder if there's things you can do to invoke this massive performance degredation besides overvolting like this and overclocking. It felt like it was running half speed. Maybe part of why AMD FX blows so hard in SC2 and Shogun 2 has to do with the fact that the code there is invoking whatever I"m invoking and causing the chip to run in neutered mode even though it's telling you it's fine.

I'm gonna play with it some more tomorrow. If I do roast this chip I will just run it stock and put it in an mATX render node. I could definitely use it and I know someone else that needs a net render render node too. So it's not the end of the world if this one dies.

For science and bravery. I need sleep though. Hopefully someone chimes in and investigates this further that has a bunch of 8350s laying around. I really don't believe I've ever seen a chip do this before.

http://www.anandtech.com/bench/Product/444?vs=697

It's close to the i7-990X on all the benchmarks - there's a SC2 one there too where the 990X gets about 8 FPS higher, but the 990X is also a $1050 chip.

Here's another one comparing the FX-8350 to the i5-3750k (current recommended gaming standard), AND the i7-3770k, and even the 3820k: https://www.youtube.com/watch?v=hyT-pgl1vZ4 - the 8350 wins 9x out of 10 in all real-world tests against the 3570k, 3770k and 3820k.

Is it dispensable @ only $200? Many budgets say yes, play around with it, fry one or two, no biggie. My budget says I have to preserve the one I have for a while, but your results can vary if you have "a bunch of 8350s laying around" smile.gif It's a cheap CPU, but it is by no means a toy, technically speaking.

You'll probably fry that one at 1.62v though, and you shouldn't need anywhere near that to get to 5.0 GHz. Just sayin' biggrin.gif
Edited by Clowerweb - 1/22/13 at 12:58am
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WD 640GB (16MB Cache) SATA II @ 7200 RPM (Main) Seagate 2TB (64MB Cache) SATA III @ 5900 RPM (S... HP DVD Writer 1260T SATA 7x Aerocool Shark 140mm Red LED Fans 
CoolingCoolingOSMonitor
Swiftech H220 2x Noctua NF-F12 Fans for H220 Windows 8 Professional LG Flatron W2361V 23" 2ms LCD @ 1920x1080 
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Samsung SyncMaster S27A550H 27" 2ms LED LCD @ 1... A USB one that came with an older Dell PC SeaSonic M12II 750W NZXT Switch 810 
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Logitech M150 5-Button Bluetooth Wireless Generic Ergonomic w/ Gel Wrist Rest Logitech H800 Bluetooth Wireless Headset Insignia 2.1 channel desktop speakers 
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All-In-One Card Reader BOSS Executive High Back Leather Chair Arctic MX4 Thermal Compound 
CPUMotherboardGraphicsRAM
AMD Phenom II X4 965 BE @ 4.0 GHz Biostar 880G+ AM3 mATX Gigabyte GeForce GTX 560 8GB G.Skill Ripjaws 1066 CL7 
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WD 500GB SATA II Some DVD burner Antec Kuhler H20 920 Windows 7 Home Premium 
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post #7517 of 67492
Quote:
Originally Posted by sdlvx View Post

Maybe part of why AMD FX blows so hard in SC2 and Shogun 2 has to do with the fact that the code there is invoking whatever I"m invoking and causing the chip to run in neutered mode even though it's telling you it's fine.
Quote:
Originally Posted by sdlvx View Post

Is this just a Linux thing that was throttling me back or did I find something?

Just a question: Why are you worried about SC2 and gaming when you're running Linux? confused.gif
The Judge
(23 items)
 
The Jury
(12 items)
 
 
CPUMotherboardGraphicsRAM
AMD FX-8350 @ 4.7 GHz ASUS Sabertooth 990FX R2.0 Zotac GeForce GTX 660 16GB G.Skill Ripjaws X (2 x 8GB @ 1866) 
Hard DriveHard DriveOptical DriveCooling
WD 640GB (16MB Cache) SATA II @ 7200 RPM (Main) Seagate 2TB (64MB Cache) SATA III @ 5900 RPM (S... HP DVD Writer 1260T SATA 7x Aerocool Shark 140mm Red LED Fans 
CoolingCoolingOSMonitor
Swiftech H220 2x Noctua NF-F12 Fans for H220 Windows 8 Professional LG Flatron W2361V 23" 2ms LCD @ 1920x1080 
MonitorKeyboardPowerCase
Samsung SyncMaster S27A550H 27" 2ms LED LCD @ 1... A USB one that came with an older Dell PC SeaSonic M12II 750W NZXT Switch 810 
MouseMouse PadAudioAudio
Logitech M150 5-Button Bluetooth Wireless Generic Ergonomic w/ Gel Wrist Rest Logitech H800 Bluetooth Wireless Headset Insignia 2.1 channel desktop speakers 
OtherOtherOther
All-In-One Card Reader BOSS Executive High Back Leather Chair Arctic MX4 Thermal Compound 
CPUMotherboardGraphicsRAM
AMD Phenom II X4 965 BE @ 4.0 GHz Biostar 880G+ AM3 mATX Gigabyte GeForce GTX 560 8GB G.Skill Ripjaws 1066 CL7 
Hard DriveOptical DriveCoolingOS
WD 500GB SATA II Some DVD burner Antec Kuhler H20 920 Windows 7 Home Premium 
MonitorPowerCaseMouse
Acer 27" LED LCD @ 1920x1080 OCZ ModXStream Pro 700W Thermaltake Soprano RS Wireless Optical 
  hide details  
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The Judge
(23 items)
 
The Jury
(12 items)
 
 
CPUMotherboardGraphicsRAM
AMD FX-8350 @ 4.7 GHz ASUS Sabertooth 990FX R2.0 Zotac GeForce GTX 660 16GB G.Skill Ripjaws X (2 x 8GB @ 1866) 
Hard DriveHard DriveOptical DriveCooling
WD 640GB (16MB Cache) SATA II @ 7200 RPM (Main) Seagate 2TB (64MB Cache) SATA III @ 5900 RPM (S... HP DVD Writer 1260T SATA 7x Aerocool Shark 140mm Red LED Fans 
CoolingCoolingOSMonitor
Swiftech H220 2x Noctua NF-F12 Fans for H220 Windows 8 Professional LG Flatron W2361V 23" 2ms LCD @ 1920x1080 
MonitorKeyboardPowerCase
Samsung SyncMaster S27A550H 27" 2ms LED LCD @ 1... A USB one that came with an older Dell PC SeaSonic M12II 750W NZXT Switch 810 
MouseMouse PadAudioAudio
Logitech M150 5-Button Bluetooth Wireless Generic Ergonomic w/ Gel Wrist Rest Logitech H800 Bluetooth Wireless Headset Insignia 2.1 channel desktop speakers 
OtherOtherOther
All-In-One Card Reader BOSS Executive High Back Leather Chair Arctic MX4 Thermal Compound 
CPUMotherboardGraphicsRAM
AMD Phenom II X4 965 BE @ 4.0 GHz Biostar 880G+ AM3 mATX Gigabyte GeForce GTX 560 8GB G.Skill Ripjaws 1066 CL7 
Hard DriveOptical DriveCoolingOS
WD 500GB SATA II Some DVD burner Antec Kuhler H20 920 Windows 7 Home Premium 
MonitorPowerCaseMouse
Acer 27" LED LCD @ 1920x1080 OCZ ModXStream Pro 700W Thermaltake Soprano RS Wireless Optical 
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post #7518 of 67492
Quote:
Originally Posted by Clowerweb View Post

Ok, on the RAM...
I Will NOT buy Crucial RAM. I have a whole pile of dead Crucial RAM you can have. A while entire box full of it, no OC on any of it. It's junk. If you want it, we can make shipping arrangements lol, it's all 100% DEAD, but if you want it...

I only trust Corsair, G.Skill, and OCZ for RAM. Period. Kingston is garbage, too. It doesn't perform well, although I've had lots of Kingston and it didn't die, it's low performance in my experience, but Best Buy sells it exclusively for insanely inflated prices, so that should tell you something. We all have out opinions and do's and don'ts. I don't buy memory from anyone except Corsair, G.Skill and OCZ. Sorry if it sounds like I'm scolding you, but it was a pretty bad suggestion. I hope it helps you learn something though...

If want to send it haha, i can oc my crucial 89823 1t 2133mhz on 1.5 v i just havent tried for more
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CPUMotherboardGraphicsRAM
AMD FX 8350 @ 5.06GHz AsUS Sabertooth R2.0 xfx 280x DD Crucial Ballistex Tactical Tracer 1866Mhz 
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Samsung 830 SSD 128GB LG BD-ROM/DVD Rewriter XSPC Raystorm RS240 kit A LOT OF FANS 
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WIN 7 ultamate AOC 23" LED LCD Microsoft wireless laser 6000 Rosewill Capstone 750w 
CaseMouseMouse Pad
Coolermaster HAF 912 Microsoft wireless laser 6000 none 
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phenom II x6 1100T MSI 990FXA-GD65 GTX 460 GTX 460 
RAMHard DriveOptical DriveCooling
Crucial Ballistix Tactical Tracer 8GB (2 x 4GB)... Samsung SSD 830  LG Blueray Coolermaster N520 
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Wet Billy
(15 items)
 
PHENOM Phoenix
(13 items)
 
 
CPUMotherboardGraphicsRAM
AMD FX 8350 @ 5.06GHz AsUS Sabertooth R2.0 xfx 280x DD Crucial Ballistex Tactical Tracer 1866Mhz 
Hard DriveOptical DriveCoolingCooling
Samsung 830 SSD 128GB LG BD-ROM/DVD Rewriter XSPC Raystorm RS240 kit A LOT OF FANS 
OSMonitorKeyboardPower
WIN 7 ultamate AOC 23" LED LCD Microsoft wireless laser 6000 Rosewill Capstone 750w 
CaseMouseMouse Pad
Coolermaster HAF 912 Microsoft wireless laser 6000 none 
CPUMotherboardGraphicsGraphics
phenom II x6 1100T MSI 990FXA-GD65 GTX 460 GTX 460 
RAMHard DriveOptical DriveCooling
Crucial Ballistix Tactical Tracer 8GB (2 x 4GB)... Samsung SSD 830  LG Blueray Coolermaster N520 
OSMonitorKeyboardPower
Win 7 Ultimate x64 AOC 1080p LED Microsoft OCZ 850w 
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Coolermaster HAF 912 
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post #7519 of 67492
Quote:
Originally Posted by Clowerweb View Post


Just a question: Why are you worried about SC2 and gaming when you're running Linux? confused.gif
More likely those 2 games are single threaded and CPU bound instead of GPU bound. That's what many knowledgeable software designers call bad design. More and more of the newer games are mulithreaded and GPU bound that is good design that will work better on our Vishera CPUs.
AMD has been working with game designers and giving some seed money to develop multi threaded games that will show off the advantages of the 8 core processors.
Edited by os2wiz - 1/22/13 at 1:15am
post #7520 of 67492
I now have 3 profiles, the last 2 show the differences between stress testing applications and the vcore requirements smile.gif

Silent which is my standard - running @ 4.0 with Turbo disabled, lowerred CPU VDDA to 2.2 from 2.5 and reduced vcore to 1.2, IBT and AIDA64 stable, not tested OCCT yet, not going to bother with Prime. Everything here is aimed at low temps, low noise, and reduced power consumption, but maintaining stock speeds (less the turbo mode).

AIDA&IBT - running 4.7 at 1.43125 and CPU VDDA lowered to 2.2 - core temps never exceed 50 in IBT or AIDA unless I do an FPU only test in AIDA, then they rise to 55. This is my gaming profile.

OCCT - running 4.7 @ 1.4875 core temps hit 58.

I could just use the OOCT profile I guess, and have reliability throughout, but all my day-day applications are rock solid using the AIDA&IBT profile, so i'm inclined to go with the lower thermals and vcore requirement, the only exception being handbrake which is stable, but pushes temps to circa 60. I am going to see how the AIDA&IBT profile goes, and if I don't notice anything untoward after several weeks I will bin the OCCT profile altogether and maybe look to tweak the AIDA&IBT profile further.

I do have one question, in IBT when it did 10 passes on extreme it comes up with a message stating the system is stable, and the number it shows is something like -1.#IDBB#-11000, is this is normal?

Thanks,
Chris.
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