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E6500 4ghz Vcore too high?

post #1 of 22
Thread Starter 
Hey everyone, so I got a new E6500 (wolfdale) for 75 bucks and was going to use it in an emulator pc, but it turns out my generic acer motherboard doesn't support 45nm chips so I decided to throw it into my gaming rig.

Needless to say I am pretty impressed by it, I was able to take it to 3.65ghz at 1.32Vcore, with a maximum prime 95 test core temp of 42 Celsius.

Anyhow, I decided I wanted to see what it took to get this sucker to the big 4.0 , and after much frustration, I can finally verify it is stable at 1.475 Vcore with an idle temp of 27 and a max load core temp of 59 celcius.

These are pretty decent temps, but I am worried about having the Vcore over the maximum 1.45 suggested by intel for 24/7 use. Could this cause severe life shortening of the cpu?

Is there anything I can try to get the cpu stable at 1.45Vcore? It boots and runs but BSODS at about 10-30 minutes into a prime95 test.

My PLL, FSB termination, and Northbridge are all set to auto, could changing some of these allow stability at 1.45? My ram is 1066 DDR2 running @ 1095 5-5-5-15 timings. Cpu is @ 364 X 11.

Merry Christmas / Happy Holidays to all
Thanks
Edited by Warrimonk - 12/24/10 at 4:24pm
post #2 of 22
First, I'm curious: is that 1.475V according to software like CPU-Z, or is that the selected voltage in the BIOS?

Second: what test did you run in Prime95 that got you a max load temp of 59°C? And, for how long was that test run?
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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 
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post #3 of 22
Keep Vcore under 1.45V for 24/7 usage..

Keep core temperatures under 75C at all time..

CHEERS..
     
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post #4 of 22
Quote:
Originally Posted by KingT View Post
Keep Vcore under 1.45V for 24/7 usage..

Keep core temperatures under 75C at all time..

CHEERS..
Why 75?
It's a computer!
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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 
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It's a computer!
(19 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 DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
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Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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post #5 of 22
Thread Starter 
The 1.475 Vcore is set in the BIOS, it is reported as 1.45 in everest.

That max load temp of 59 degrees is reported by RealTemp and Everest, I have one hell of a huge CPU cooler and it does an excellent job.

Test was a 1 hour Large FFT with prime 95.
post #6 of 22
Quote:
Originally Posted by Warrimonk View Post
The 1.475 Vcore is set in the BIOS, it is reported as 1.45 in everest.

That max load temp of 59 degrees is reported by RealTemp and Everest, I have one hell of a huge CPU cooler and it does an excellent job.

Test was a 1 hour Large FFT with prime 95.
Oh. Then can you test exactly 10 minutes of the Small FFTs test in Prime95 and then report the max temperature reached during that entire time? The temperature should exceed 59°C during this test.

Also, can you report what CPU-Z says the voltage is during that test?
It's a computer!
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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 DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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It's a computer!
(19 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 DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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post #7 of 22
Thread Starter 
Heres the results. max temp was 64 degrees after 11 minuites. But it seemed to be sticking right between 62 and 63 98% of the time.
post #8 of 22
Quote:
Originally Posted by Warrimonk View Post
Heres the results. max temp was 64 degrees after 11 minuites. But it seemed to be sticking right between 62 and 63 98% of the time.
Damn. That is one badass air cooler. I mean that's 1.464V, but yet the temp never exceeded 64°C!

Anyway, I think that when it comes to this 1.45V limit, I think it may come down to what your comfortable with. Personally, I am not comfortable with leaving it that high for 24/7 use because I think I need to have my sig rig last me at least another 2 years, and I don't know yet what would happen if I left it at that voltage. I mean, it might be fine, but then it might not. It's just the whole "unknown" factor that makes me uneasy. I could ask around, but I'm not that interested in it.

Some people would tell you that 1.464V under full load for this CPU is still fine while others might think you're insane. But me? Meh... it's not like it's running Prime95 or Linpack 24/7.

So I don't know. I guess it's fine, but it wouldn't be fine for me.
It's a computer!
(19 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 DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(19 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 DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
post #9 of 22
Thread Starter 
Yeah, i love this cooler, you should see the temps at 1.32Vcore, it literally is insane, I CANT make it past 45 degrees no matter what i try. i might just drop it to 3.6 ghz.

Back to my original problem though. Its barely unstable at 1.45. Is there anything I can do to stabilize?
Edited by Warrimonk - 12/24/10 at 6:43pm
post #10 of 22
If it said 1.45 in cpuz that would be fine, its just when cpuz shows its over the recommended safe limit you need to be careful. Theres always a small drop from the setting in the bios to the setting you get in windows
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