Overclock.net › Forums › AMD › AMD CPUs › Bulldozer 8150 Black Edition OC results?
New Posts  All Forums:Forum Nav:

Bulldozer 8150 Black Edition OC results? - Page 2

post #11 of 21
Thread Starter 
That's a good conservative reply, Almstsobur. Like you said, it might be a 0.00001% chance of happening. I just thought that it was odd that 3 of the big benchmarking sites have pulled it off. Maybe ti has more to do with keeping the CPU voltage around 1.35v and UPPING the HT LLC and other chipset/ram voltages. That's the impression i got from threads by _users_ who have hit 4.8ghz or higher on the stock HSF.

As far as that experience goes, i can safely say that i second it. "Brute force" voltage increases on the CPU don't seem to give you as much of an overclock as a "Balanced" voltage increase does over your entire spectrum.

For example, i can boot and be stable at 1.35v @ 4400mhtz. To go any higher, i have to increase my HT LLC voltage, HT link and numerous other voltages including my RAM. I think the biggest reason why people have trouble OC'ing the bulldozers is because they're not completely voltage independent of the other components, like all previous CPU's have been. Before the Bulldozer it was very easy to set your CPU voltage to 1.65 and get a 40-60% overclock, however that doesn't seem to be the case with the bulldozer. It seems like the most you're going to get is around 30% before you need to OC your HT/northbridges and RAM for your system to run stable.

It's a very curious chip to work with, even all of the Liquid nitrogen/helium benchers are increasing these factors and tbh, with previous chips they haven't' affected your ability to overclock the CPU itself.
I'm getting more and more curious abuot this chip. I'm considering RMA'ing the board considering it's 2012 and i should have been shipped a rev3, not a damn rev1
post #12 of 21
Quote:
Originally Posted by PurePhoenix View Post

almstsobur; these benches were done by the overclocking focums,aandtech and tomshardware smile.gif Google is your friend.
I won't deny that a 5ghz OC is RARE and the AVERAGE is 4.4, it CAN and HAS been done on air cooling several times.
**denotes correction via edit

http://www.anandtech.com/show/4955/the-bulldozer-review-amd-fx8150-tested/10

http://www.tomshardware.com/reviews/fx-8150-zambezi-bulldozer-990fx,3043-21.html

Lolwut?
post #13 of 21
Thread Starter 
ooo so close. Sorry, I've looked up quite a few (read, easily 50 or more) pages regarding the bulldozer 8150 and got a tad confused. For example, the UD7 benchmarked highest out of the 8150 supporting boards but due to that voltage drop, it doesn't OC too well unless you get a Rev 3.

So 4.6 or at an absolute push 4.8 is what i should expect; At 1.41v under load. That means i'll probably be running 1.61 or 1.75v on startup from bios INIT.... i'm not looking forward to my CPU lifespan with this board..... i'm getting more and more inclined to demand a refund and swap for the UD3+ another 8gb of RAM considering the UD7 was roughly AUD$130 more expensive than the UD3. If i had gotten a rev3 from the start i probably wouldn't hold this opinion..... considering it's 18-feb-2012 i realistically shouldn't have even been sold a rev1 but hey... life doesn't always work out how you expect :|

Thanks for clearing that up infernalaanger!
post #14 of 21
If you got that board recently, and they sent you an old revision. I say get a refund. Not saying to go with any particular brand, but I've had great success and been very happy with my Sabertooth 990FX
post #15 of 21
No worries! I'd definitely get an RMA on that board, at the very least. If not, a different board.
post #16 of 21
Thread Starter 
Tbh, the only reason i got the UD7 over any other model is because regardless of SATA3 transfer rates, they benchmarked higher than the Formula V Asus. So far i feel like I've paid an EXTRA AUD$130 just to match the performance of a UD3 that's equipped with 16gb of ram.

Not, Happy, Jan!!!!. If you're in west aus, stay the hell away from Austin computers... these guys might have 6 stores but so far they have done nothing but cause me grief.
post #17 of 21
Thread Starter 
Has anyone got one of these, can you tell me what the minimum voltage it should run under load is?
I'm asking because it's crashing now even at 1.425v @ 4.0ghtz and i'm watching the voltage under load dropping to 1.2 or 1.28v... that's pretty abysmal.
On the good news side of things, Austins' will replace my mobo, but only with a 1.1 ex-demo they've got in stock. My alternative is to accept the refund and wait for restocking + delivery on a UD5 or UD3. The good news is, since the ex-demo is a 1.1 it has been benched at 4.9ghtz on stock HSF air cooling with 4 modules @ 2200mhtz RAM. It's a damn beast! Only other consideration i can think of, is my CPU burnt in and now won't OC at all, so much for being designed to OC =/

Update / Edit; Currently running 4.2ghtz @ 1.36v as shown by CPU-Z. On load it drops to 1.2v, i've updated bios to F8 and disabled all the automatic CPU fan/power/ratio/fsb/voltage features(read; useless crap). Got it to boot into windows at 4.4 and 4.6 but BSoD'd after a few minutes of Prime. Hardware failure on core #7 detected on Prime, might actually have a dodgy CPU on my hands to boot... great....

Good news is i hit 45 fps in my benchmarking spot on my usual benchmarking settings in skyrim. Am pleased. Mates' i5 2500k with Radeon 6870 gets 60 fps on almost identical settings.... but i only have a 460GTX, definately can't say the CPU isn't a strong one.
Edited by PurePhoenix - 6/15/12 at 2:49am
post #18 of 21
I did a quick oc after i got my system set up and had it stable at 4.6Ghz with stock voltage. will bench mark and post CPUZ screen shot. Think all CPU's have a mind of there own and there is no "SET" oc profile just trial and error form my exp.
I have always found when i help others with there overclock with AMD that they neglect the HT/LINK Freq and its always right up near the 3000mhz mark (I have never seen one work this high except on 5Ghz oc's). But in saying that i want to be proven wrong because that will be a new target to aim for.

Good luck and dont forget you cant put the smoke back in when it gets out biggrin.gif
 
House Server
(15 items)
 
 
CPUMotherboardGraphicsRAM
AMD 8150BE ASUS Crosshair Formula V 5870 8GB GSkill Ripjaw 
Hard DriveHard DriveHard DriveHard Drive
ocz vortex 4 128gb 500Gb Western Digital 2Tb western Digital 2Tb Seagate 
Hard DriveCoolingOSKeyboard
600gb fuckknows corsair h80 windows 7 ultimate Razor nostromo 
PowerCaseMouseMouse Pad
corsair hx1000 Corsair 500R Logitec G700 bit of timber 
AudioOther
Creative Soundcard  stuff 
CPUMotherboardGraphicsRAM
Intel Q6600 GA-P35-D3SL geforce 8800gt Kingston 
Hard DriveCoolingOSMonitor
Lots Stock Windows7 Bigarse LCD 
KeyboardPowerCaseMouse
Wireless Antec 500w  Antec Professional One A Wireless One 
Mouse PadAudioOther
The Couch Speakers Stuff 
  hide details  
Reply
 
House Server
(15 items)
 
 
CPUMotherboardGraphicsRAM
AMD 8150BE ASUS Crosshair Formula V 5870 8GB GSkill Ripjaw 
Hard DriveHard DriveHard DriveHard Drive
ocz vortex 4 128gb 500Gb Western Digital 2Tb western Digital 2Tb Seagate 
Hard DriveCoolingOSKeyboard
600gb fuckknows corsair h80 windows 7 ultimate Razor nostromo 
PowerCaseMouseMouse Pad
corsair hx1000 Corsair 500R Logitec G700 bit of timber 
AudioOther
Creative Soundcard  stuff 
CPUMotherboardGraphicsRAM
Intel Q6600 GA-P35-D3SL geforce 8800gt Kingston 
Hard DriveCoolingOSMonitor
Lots Stock Windows7 Bigarse LCD 
KeyboardPowerCaseMouse
Wireless Antec 500w  Antec Professional One A Wireless One 
Mouse PadAudioOther
The Couch Speakers Stuff 
  hide details  
Reply
post #19 of 21
@PurePhoenix:
Honestly, in my opinion, you need to back up and focus on that vdroop before worrying about clocks. The very first thing to do is figure out the vdroop situation by upping the LLC until it isn't allowing crazy vdroops under load. Then proceed to overclock. This is how I do it, anyway. If you max out LLC and still are getting unhealthy vdroops when under load, RMA the board, because that's not normal. It is quite important that you are able to keep the voltage under load as stable as possible if you plan on doing high overclocks. Just think about it: how can one ever expect a CPU to achieve a high, stable overclock if it isn't being fed a stable voltage. This may not present itself as being a major problem at lower clocks, as one can just safely overvolt to achieve a stable clock speed. But once one starts to clock higher, this is going to escalate into a serious issue in regard to needed voltages, stability, and ultimately, the life of your chip.


Just my 2c
Edited by svthomas - 6/15/12 at 12:26pm
Uncensored
(29 items)
 
AMD PII Rig
(15 items)
 
 
CPUMotherboardGraphicsGraphics
AMD FX 8120 @ 4.8Ghz ASUS Sabertooth 990FX MSI Geforce GTX680 #1 MSI Geforce GTX680 #2 
GraphicsRAMHard DriveHard Drive
PowerColor 7970 ref. (Backup card...) 16 GB Corsair Vengeance PC3 12800 Seagate Barracuda 1TB 7200RPM Crucial 128GB M4 SSD 6Gb/s 
Optical DriveCoolingCoolingCooling
None PrimoChill PrimoFlex PRO LRT Tubing 1/1" ID 3/4... Swiftech MCP655 Koolance VID-NX680 
CoolingCoolingCoolingCooling
Koolance VID-NX680 Danger Den Monsoon D5 Bay Reservoir Enzotech Compression Fittings Scythe Gentle Typhoon AP-15 x4 
CoolingCoolingOSMonitor
EK-Supreme HF XSPC RX480 Win 7 Ultimate 64bit Acer 23" 1080p S232HL #1 
MonitorMonitorKeyboardPower
Acer 23" 1080p S232HL #2 Acer 23" 1080p S232HL #3 Razer BlackWidow Ultimate Mechanical Keyboard Seasonic X750 Gold 
CaseMouseMouse PadAudio
Danger Den 26  Razer Deathadder My cat, or other small, furry creatures. Creative Sound Blaster X-Fi Titanium 
Audio
Sennheiser HD555 Headphones 
CPUMotherboardGraphicsRAM
AMD Phenom II 955 Black Edition ASUS Crosshair iv Formula SAPPHIRE Radeon HD 6950 2GB (unlocked) - ref Corsair Vengeance 8GB (2 x 4GB) 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 1TB 7200RPM None NZXT havik Win 7 Ultimate 64bit 
MonitorKeyboardPowerCase
Samsung 19" LCD Razer BlackWidow Ultimate Mechanical Keyboard  CORSAIR TX650 Antec 902 
MouseAudio
Razer Naga M-Audio Studiophile AV40 Powered Monitor Speakers 
  hide details  
Reply
Uncensored
(29 items)
 
AMD PII Rig
(15 items)
 
 
CPUMotherboardGraphicsGraphics
AMD FX 8120 @ 4.8Ghz ASUS Sabertooth 990FX MSI Geforce GTX680 #1 MSI Geforce GTX680 #2 
GraphicsRAMHard DriveHard Drive
PowerColor 7970 ref. (Backup card...) 16 GB Corsair Vengeance PC3 12800 Seagate Barracuda 1TB 7200RPM Crucial 128GB M4 SSD 6Gb/s 
Optical DriveCoolingCoolingCooling
None PrimoChill PrimoFlex PRO LRT Tubing 1/1" ID 3/4... Swiftech MCP655 Koolance VID-NX680 
CoolingCoolingCoolingCooling
Koolance VID-NX680 Danger Den Monsoon D5 Bay Reservoir Enzotech Compression Fittings Scythe Gentle Typhoon AP-15 x4 
CoolingCoolingOSMonitor
EK-Supreme HF XSPC RX480 Win 7 Ultimate 64bit Acer 23" 1080p S232HL #1 
MonitorMonitorKeyboardPower
Acer 23" 1080p S232HL #2 Acer 23" 1080p S232HL #3 Razer BlackWidow Ultimate Mechanical Keyboard Seasonic X750 Gold 
CaseMouseMouse PadAudio
Danger Den 26  Razer Deathadder My cat, or other small, furry creatures. Creative Sound Blaster X-Fi Titanium 
Audio
Sennheiser HD555 Headphones 
CPUMotherboardGraphicsRAM
AMD Phenom II 955 Black Edition ASUS Crosshair iv Formula SAPPHIRE Radeon HD 6950 2GB (unlocked) - ref Corsair Vengeance 8GB (2 x 4GB) 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 1TB 7200RPM None NZXT havik Win 7 Ultimate 64bit 
MonitorKeyboardPowerCase
Samsung 19" LCD Razer BlackWidow Ultimate Mechanical Keyboard  CORSAIR TX650 Antec 902 
MouseAudio
Razer Naga M-Audio Studiophile AV40 Powered Monitor Speakers 
  hide details  
Reply
post #20 of 21
Thread Starter 
Wow thanks thomas that might really help.... i've read the owners club and a few others, trying to find out WHY i'm raising these other voltages. BUt it was never explained and now that you tell me that LLC voltage can help SPECIFICALLY stop vdrop, i need to raise mine a bit and see how i go.

Restarting now, thanks alot all... smile.gif

edit/update; i thought i had LLC voltage control in bios... maybe i did and it was removed in the F8 bios idk for sure. Either way i don't have it and for now i'll just run stock clocks. I'll RMA the board on monday.
Edited by PurePhoenix - 6/15/12 at 9:30pm
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD CPUs
Overclock.net › Forums › AMD › AMD CPUs › Bulldozer 8150 Black Edition OC results?