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Worst CPU Batch Ever?

post #1 of 12
Thread Starter 
I think I got it...

or maybe I'm missing something important

Upgraded this month from a core 2 duo (crazy right?). Been out of the game for a looong time. Much has changed. So maybe I'm messing up here..


Specs: i5 3570k
MSI Z77 G45 (non gaming)
CORSAIR XMS3 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333
ASUS Radeon 5850 (needing upgrade soon)

79c @ max load. 1.4vcore, 4.5ghz, didn't even prime it for 24hrs, but it's stable for the 15min that it's been running thus far. Any less vcore is unstable just from using windows. (tried 1.375)

I've seen these cpu's running at 4.6 with only 1.2vcore. Am I missing something important in my settings?



post #2 of 12
Thread Starter 
Bump. Need help! frown.gif
post #3 of 12
Enable EIST, Enable Internal PLL Overvoltage, set your DRAM clocks via X.M.P if availible, otherwise set it to the rated clocks of your ram stick which would be 1333 MHz as you've stated below, but I'm pretty sure you can overclock your ram to 1600 MHz without changing the ram voltage, if you're going to overclock the ram to 1600 MHz, make sure you set the ram voltage as rated on the ram stickers.

Having EIST off is just a waste of power and heat, the CPU will clock down depending on how much load the computer is giving to the CPU, making it efficient and decreases CPU degradationi, you wouldn't want to run 1.4V on your CPU constantly. Make sure you have the power plan: Balanced selected in windows.

That looks like really bad luck from the silicon lottery, most CPU's can do 4.5 GHz at 1.25v easily.

Could you post more specs? Power supply, CPU cooler, etc.
Gaming Computer
(19 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 Asustek P5Q-PRO Nvidia 9800 GTX+ Kingston DDR2 8gb 
Hard DriveOptical DriveCoolingOS
Western Digital 1 TB Pioneer Noctua NH-U9B Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Dell Monitor Logitech G110 Antec 750W Thermaltake Aluminium Old Case 
MouseMouse PadAudio
Logitech G500 Gaming Mouse Generic Mousepad Soundblaster 5.1 VX 
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Gaming Computer
(19 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 Asustek P5Q-PRO Nvidia 9800 GTX+ Kingston DDR2 8gb 
Hard DriveOptical DriveCoolingOS
Western Digital 1 TB Pioneer Noctua NH-U9B Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Dell Monitor Logitech G110 Antec 750W Thermaltake Aluminium Old Case 
MouseMouse PadAudio
Logitech G500 Gaming Mouse Generic Mousepad Soundblaster 5.1 VX 
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post #4 of 12
Thread Starter 
Thanks for the reply... currently testing 1.385vcore @ 4.5ghz.

PSU: SILVERSTONE ST75F 750W ATX 12V 2.2 & EPS 12V SLI Ready Full Modular Active PFC Power Supply
Cooler: Coolermaster Hyper 212 Evo.
Edited by alext72888 - 1/7/14 at 8:15pm
post #5 of 12
Everything looks fine, looks like you got pretty unlucky, I'm not sure if you can RMA a CPU due to that.
Gaming Computer
(19 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 Asustek P5Q-PRO Nvidia 9800 GTX+ Kingston DDR2 8gb 
Hard DriveOptical DriveCoolingOS
Western Digital 1 TB Pioneer Noctua NH-U9B Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Dell Monitor Logitech G110 Antec 750W Thermaltake Aluminium Old Case 
MouseMouse PadAudio
Logitech G500 Gaming Mouse Generic Mousepad Soundblaster 5.1 VX 
  hide details  
Reply
Gaming Computer
(19 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 Asustek P5Q-PRO Nvidia 9800 GTX+ Kingston DDR2 8gb 
Hard DriveOptical DriveCoolingOS
Western Digital 1 TB Pioneer Noctua NH-U9B Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Dell Monitor Logitech G110 Antec 750W Thermaltake Aluminium Old Case 
MouseMouse PadAudio
Logitech G500 Gaming Mouse Generic Mousepad Soundblaster 5.1 VX 
  hide details  
Reply
post #6 of 12
Which thermal paste are you using? Have you reapplied it and tried again?
post #7 of 12
Thread Starter 
The thermal paste is fine. Temps are good. I'm using the stuff that arrived with the 212 evo.

Is there any argument I can present to the RMA service? Because at stock speeds everything seems to work fine..

When OC Genie on my MSI mobo is at default vcore, it runs up around 1.3vcore and Is only overclocked to 4.2ghz
post #8 of 12
What VCore do you see in Windows in a monitoring program like CPU-Z or HWINFO while a stress test like prime95 is running?

I have no idea what the MSI names mean, but that "vdroop offset control" and "digital compensation level" thingy in one of the screenshots looks like VCore LLC (Load Line Calibration) to me. You should set that so voltage does not drop when power use increases. If the board sticks to Intel's specification, the voltage drop at 1.4V is by default massive, something that uses a lot of power like running prime95 will run at perhaps 1.25V if you've set 1.4V VCore.
post #9 of 12
Thread Starter 
Still Running Prime for the 1.385v @ 4.5ghz. Settings since last night. Looking stable.

CPU Vcore in CPUZ Says 1.352v while under full load. Bios is set to 1.385v.
When I shut off prime, it went up to 1.368 in cpuz.

An interesting note:

core 1 is at 74c,
core 2 & 3 are at 79,
core 4 is at 76. So much deviation..
Edited by alext72888 - 1/8/14 at 9:25am
post #10 of 12
If you type "ivy bridge die" into google image search, you'll see what's perhaps happening regarding the temperatures. If all four cores run the same stress test, it seems logical that core 2 and 3 are hotter than 1 and 4.
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