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i5 3570k

post #1 of 5
Thread Starter 
Hello Gentlemen,

I hope I have some reasonably fair questions for you.

Asus Z77A
Gskill 2133 9-11-11-31 at 1.585v 8gb 2x4
Cool master 212 evo in push/pull


I am not new to overclocking and have built several hundred machine over the last 10 years. I do not go ape ***** on games and never have. I guess I am still confused at running Prime 95 for several hours to confirm stability and temperatures. This seem like running the Chevy 350 in you driveway at 6000 rpm for hours to test the engine.???? I never go over 38 degrees for normal everyday operations.
I usually run the Intel test for both memory and cpu and have got as high as 100 after 10 minutes. My voltages get to 1.46 during this testing but depending where you look this is a death sentence or just an occasional nuisance.


So.......

I am currently running at 4.4ghz and really never break 1.2v for normal everyday operations. Everything i have seen says that this is ok but I am thinking of going to ddr3-2400 but that requires 1.65v and my bios goes to a red color when I go to this voltage.

It seems that what I have to gain are very small compared to what I might lose.

Thoughts.........
post #2 of 5

Prime95 isn't putting a constant unchanging load on the CPU while you're running it. It changes with each new FFT size. With Prime95's Blend test, it can take about 24 hours to get through all of the different FFTs that it has, so that's why it's recommended to get your system stable enough for 24 hours of Blend. It's nothing like having a car engine running at its max RPM for an extended period of time.

 

The reason why the voltage in the BIOS changes to red is, that's the way ASUS programmed it (so, it will always turn red at 1.65). 1.65 is supposed to be the 24/7 limit for Ivy Bridge memory.

It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #3 of 5
Thread Starter 
But what if I drive my car normally and only hammer it every once in a while. I don't thnik that qualifies me as a dragster. Does using ddr3-2400 stress the system to the point of potential failure. Or is dd3 2400 only marginally better than my ddr3 2133 runnng at 9-11-11-31 at 1.585v. Intel discourages anything over 1.65v. I would like to keep my overclock without burning down the house.......................
post #4 of 5
Quote:
Originally Posted by ccwhite8009 View Post

But what if I drive my car normally and only hammer it every once in a while. I don't thnik that qualifies me as a dragster. Does using ddr3-2400 stress the system to the point of potential failure. Or is dd3 2400 only marginally better than my ddr3 2133 runnng at 9-11-11-31 at 1.585v. Intel discourages anything over 1.65v. I would like to keep my overclock without burning down the house.......................

 

When you overclock the CPU this far, you're making a MASSIVE change and so testing the stability is a MUST. This is why Prime95 is what everyone uses.

 

1.65V is safe, but you just don't want to go much higher than that for 24/7 use.

It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
post #5 of 5
Quote:
Originally Posted by ccwhite8009 View Post

But what if I drive my car normally and only hammer it every once in a while. I don't thnik that qualifies me as a dragster. Does using ddr3-2400 stress the system to the point of potential failure. Or is dd3 2400 only marginally better than my ddr3 2133 runnng at 9-11-11-31 at 1.585v. Intel discourages anything over 1.65v. I would like to keep my overclock without burning down the house.......................

With 2400MHz and above memory clock speeds you may need to increase VCCSA/VCCIO/System Agent Voltage a bit to get the memory overclock to be stable. I even had to ramp up the ram voltage to 1.65v. From my past experience its not worth the hassle of getting it stable at that speed and the benefits from 2133mhz 2400mhz will not be noticeable in real world scenarios. Maybe when you're doing video/model rendering that uses alot of memory. I ended up keeping my ram at the X.M.P profile as I couldn't get a stable 2400MHz mem OC.

Some ram just can't clock as high as 2400MHz with no issues.

Anyway I use Aida64/memtest86+ to check for memory stress testing. You can also use hyperpi(not sure exactly what it's called but its used to calculate pi)
Edited by benjamen50 - 9/27/15 at 12:12am
Gaming Computer
(19 items)
 
   
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Intel Core 2 Quad Q6600 Asustek P5Q-PRO Nvidia 9800 GTX+ Kingston DDR2 8gb 
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Gaming Computer
(19 items)
 
   
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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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