Overclock.net › Forums › Intel › Intel CPUs › i5 2500k 4.7ghz it 1.47 volt
New Posts  All Forums:Forum Nav:

i5 2500k 4.7ghz it 1.47 volt - Page 3

post #21 of 35
I can tell you that on my first 2500k it wouldn't post at 4.7 no matter how much vcore i pumped into it. It's just the luck of the draw.
post #22 of 35
how did you even get your chip rma'd fuloran
    
CPUMotherboardGraphicsRAM
i5-2500K [24/7: 4.9ghz 1.47v] ASRock P67 Extreme 4 (B3) EVGA Geforce 570 [890/2200 1.1v] G.Skill Ripjaws 2x4GB 1600Mhz 
Hard DriveMonitorPowerCase
WD Caviar Black 1TB HP f2105 1680x1050 Corsair TX750 V2 (backup Antec BP550W) Antec 902 
Mouse
Logitech G500 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
i5-2500K [24/7: 4.9ghz 1.47v] ASRock P67 Extreme 4 (B3) EVGA Geforce 570 [890/2200 1.1v] G.Skill Ripjaws 2x4GB 1600Mhz 
Hard DriveMonitorPowerCase
WD Caviar Black 1TB HP f2105 1680x1050 Corsair TX750 V2 (backup Antec BP550W) Antec 902 
Mouse
Logitech G500 
  hide details  
Reply
post #23 of 35
Quote:
Originally Posted by donkrx View Post
how did you even get your chip rma'd fuloran
he returned it to the store. I saw him post that in another thread. He's offline, so I answered for him.
Edited by anubis1127 - 8/18/11 at 5:27pm
post #24 of 35
Thread Starter 



i have test it for 1 hour in prime volt 1.40 4.5

Why not show the correct voltage in cpu-z

and way is my score low and the cpu speed in 3dmark is 3.3 ?
post #25 of 35
raise pll overvolt and lower the vcore drastically.
2500k
(15 items)
 
  
CPUMotherboardGraphicsRAM
2500k @ 4.6 1.27V Asus p67 Pro SLI 560 TI Ripjaws X 1600 2x4GB 
Hard DriveCoolingOSMonitor
Crucial C300 + Spinpoint F3 Noctua N-D14 Win 7 x64 LG 1920x1080 
KeyboardPowerCaseMouse
Das Professional NZXT 750w Hale90 Antec 600 M60 
Audio
ATH AD700 
  hide details  
Reply
2500k
(15 items)
 
  
CPUMotherboardGraphicsRAM
2500k @ 4.6 1.27V Asus p67 Pro SLI 560 TI Ripjaws X 1600 2x4GB 
Hard DriveCoolingOSMonitor
Crucial C300 + Spinpoint F3 Noctua N-D14 Win 7 x64 LG 1920x1080 
KeyboardPowerCaseMouse
Das Professional NZXT 750w Hale90 Antec 600 M60 
Audio
ATH AD700 
  hide details  
Reply
post #26 of 35
Thread Starter 
Quote:
Originally Posted by Grief View Post
raise pll overvolt and lower the vcore drastically.
How much
post #27 of 35
what is your pll at right now?
2500k
(15 items)
 
  
CPUMotherboardGraphicsRAM
2500k @ 4.6 1.27V Asus p67 Pro SLI 560 TI Ripjaws X 1600 2x4GB 
Hard DriveCoolingOSMonitor
Crucial C300 + Spinpoint F3 Noctua N-D14 Win 7 x64 LG 1920x1080 
KeyboardPowerCaseMouse
Das Professional NZXT 750w Hale90 Antec 600 M60 
Audio
ATH AD700 
  hide details  
Reply
2500k
(15 items)
 
  
CPUMotherboardGraphicsRAM
2500k @ 4.6 1.27V Asus p67 Pro SLI 560 TI Ripjaws X 1600 2x4GB 
Hard DriveCoolingOSMonitor
Crucial C300 + Spinpoint F3 Noctua N-D14 Win 7 x64 LG 1920x1080 
KeyboardPowerCaseMouse
Das Professional NZXT 750w Hale90 Antec 600 M60 
Audio
ATH AD700 
  hide details  
Reply
post #28 of 35
Read this in regards to PLL voltage:



**PLL VOLTAGE INFO**

I been recently testing something for the last few days and that is PLL voltage. In the first few instance I've find that lowering actually helps stability for some cpu's, now it seems that more and more are actually trying it and results have been great.

Just 2 hours ago I recommended fuloran1 who was having having stability issue's for last few days to try the following thing:


Quote:
Originally Posted by munaim1 View Post
they are all on deafult I pressume?

What I want you to try is, decrease the PLL voltage to around 1.7/1.71v and test for stability and record what happens, then I want you to increase the PLL voltage to around 1.89v and again see what happens. The objective is to see whether or not your chip like high PLL or low PLL voltage, then we'll take it from there.

From having continous BSODS at the 7/8minute of the 1792 FFT he tried many things without success. He tried the above method and changed PLL voltage to 1.71v.


Quote:
Originally Posted by fuloran1 View Post
Ok, so now I didnt get a bsod, but a worker failed at 8 minutes. Raised pll to 1.89 and testing.
Progress!!!!! No bsod and worker failing can be an indication of near stability. Dropping the PLL certainly helped.


Here's another instance, Roksonixx kept failing the 1344 FTTs and then after trying the same thing:

Quote:
Originally Posted by Roksonixx
it might just be pure luck but i've put my PLL voltage down to 1.7v and vcore down 4 notches and im 10 minutes into those bloody 1344 fft's ....

fingers crossed! if i can get this to work i'll update my "stable" score in your thread

After a few minutes:

Quote:
Originally Posted by Roksonixx
i tried a few above 1.8 and down to 1.75, but i've just tried 1.7 and it's worked wonders...20 minutes into that damn test, with a nice low vcore now....

it's rather strange that a high voltage can throw things off, with vcore it doesnt matter if you're 0.01 or 0.1 above, it still works because it has "enough"

i'd recommend putting 124 bsod's on your thread to "too much / to little PLL voltage", because that's certainly what's happened here


Seems like PLL voltage does make a difference. He could be right in saying error 124 could correspond to PLL voltage as oposed to VTT (VCCIO) and vcore. This is a good find.!!


Again:

Quote:
Originally Posted by TwoCables View Post
As I mentioned earlier, I had a goal of finally passing Prime95 Custom @ 1344K using 7168MB (exactly 7GB) of memory for 30 minutes. Well, after a bunch of trials and errors, I finally did it! I stopped my test at 33 minutes because I just couldn't wait any longer.

http://home.comcast.net/~twocables/33Minutes%21.png (1680 x 1050)

I'm sorry for forgetting to include my name in Notepad, but I was a little bit too excited. So, let's just go by the date and time on the Taskbar for now.

Anyway, what allowed me to do this was dropping my CPU PLL Voltage all the way down to 1.70000V which seems to run at 1.693V - 1.696V (that is, after testing several different CPU PLL Voltages).

Yet more proof that, reducing PLL voltage is the way forward for getting the system stable, however he couldnt get it stable for the 1792FFT without a small PLL voltage bump to 1.70625v:

Quote:
Originally Posted by TwoCables View Post
I did it! After that 8-minute failure, I went straight to a CPU PLL of 1.68750V, but it failed after 4 minutes. So then I went straight to 1.70625V and it passed twice (30 minutes)!! Oh happy day!
My advice play around with the PLL voltage from 1.7v and you should be good.


it looks alive
(17 items)
 
Sandy Transformed
(69 photos)
 
CPUMotherboardGraphicsRAM
i5 2500K [5ghz 1.44v 24/7] Asus Maximus IV Extreme SLI GTX 460 @ 920/1840/4100 [1.11v] 4GB Dominator GT @ 2133mhz CL8 [1.65v] 
Hard DriveHard DriveCoolingOS
Intel X25-M G2 80GB 3x Samsung F3 500GB RAID 0 EK Supreme HF Full Copper Windows 7 Ultimate 64bit 
MonitorPowerCaseAudio
LG42SL9500 42" 1080p [Surround Soon] XFX XXX Edition 650w Xigmatec Elysium JVC HA-RX700 [foam mod] 
  hide details  
Reply
it looks alive
(17 items)
 
Sandy Transformed
(69 photos)
 
CPUMotherboardGraphicsRAM
i5 2500K [5ghz 1.44v 24/7] Asus Maximus IV Extreme SLI GTX 460 @ 920/1840/4100 [1.11v] 4GB Dominator GT @ 2133mhz CL8 [1.65v] 
Hard DriveHard DriveCoolingOS
Intel X25-M G2 80GB 3x Samsung F3 500GB RAID 0 EK Supreme HF Full Copper Windows 7 Ultimate 64bit 
MonitorPowerCaseAudio
LG42SL9500 42" 1080p [Surround Soon] XFX XXX Edition 650w Xigmatec Elysium JVC HA-RX700 [foam mod] 
  hide details  
Reply
post #29 of 35
Thread Starter 
Quote:
Originally Posted by grief View Post
what is your pll at right now?
1.90



Why not show the correct voltage in cpu-z

and way is my score low and the cpu speed in 3dmark is 3.3 ?

post #30 of 35
eh..1.48 for 4.8 ghz isn't so bad..probly not the bestest-binned chip..kinda like the latest one i have who cares about voltage,long as the temps are in check?On my current SB er..getup..my results are the same..over 4.5..might as well max out the volts..and it'll do 5 ghz stable..BUT..once the machine gets turned off..infinite boot loop..whee..i'm typing this from a sabertooth 990fx..lil tired of the random freezes/bsods/13 reboots before post
..c'monnn bulldozer!
 
Thuban Powah!
(14 items)
 
 
CPUMotherboardGraphicsRAM
Xeon X5650 Asus P6X58D-E Sapphire HD 7950 G.Skill Trident-X 2600 CL10 
Hard DriveCoolingPowerCase
Samsung 840 pro Bong cooler / RASA waterblock Rosewill Capstone Gold 750 None 
MouseMouse PadAudio
cheap! Newegg box panel ibeats with onboard. 
CPUMotherboardGraphicsRAM
AMD Phenom II X6 1075T w/2 cores locked @ 4.2+ M4a89GTD-Pro XFX Radeon HD 5870 8gb Samsung ddr3 1600 11-11-11-28@ 8-8-8-24 
Hard DriveHard DriveOptical DriveCooling
OCZ Agility2 40gb WD Blue 500GB Lite-On RASA waterblock 
OSMonitorKeyboardPower
Windows & Linux Samsung 1080p 2 ms Dell Thermaltake TR2-800 
CaseMouse
Cooler Master Elite 330 (was) cheap 
  hide details  
Reply
 
Thuban Powah!
(14 items)
 
 
CPUMotherboardGraphicsRAM
Xeon X5650 Asus P6X58D-E Sapphire HD 7950 G.Skill Trident-X 2600 CL10 
Hard DriveCoolingPowerCase
Samsung 840 pro Bong cooler / RASA waterblock Rosewill Capstone Gold 750 None 
MouseMouse PadAudio
cheap! Newegg box panel ibeats with onboard. 
CPUMotherboardGraphicsRAM
AMD Phenom II X6 1075T w/2 cores locked @ 4.2+ M4a89GTD-Pro XFX Radeon HD 5870 8gb Samsung ddr3 1600 11-11-11-28@ 8-8-8-24 
Hard DriveHard DriveOptical DriveCooling
OCZ Agility2 40gb WD Blue 500GB Lite-On RASA waterblock 
OSMonitorKeyboardPower
Windows & Linux Samsung 1080p 2 ms Dell Thermaltake TR2-800 
CaseMouse
Cooler Master Elite 330 (was) cheap 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › i5 2500k 4.7ghz it 1.47 volt