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A question about my new 2500k

post #1 of 8
Thread Starter 
Hey all! I'm brand new here and wanted to shed some love for this forum. So many of my questions in the past have been answered from past OC experiences by reading through the plethora of knowledge traded here. Cheers to that!

I just built a new system 2 days ago, and ended up switching my guns to Intel (long time AMD user), and so far I am absolutely stoked on the performance here on my 2500k. As I continue acquiring more parts (better PSU, fans, better case, SSD, etc.) to make this system as stable for OC as it can be, I figured I might as well fill up on some knowledge.

My question lies in the Turbo Boost feature on these chips. My motherboard states that Turbo Boost is indeed on, and even Intel's little utility "Turbo Boost Technology Monitor 2.0" shows my clock speed hit 3.4 (turbo'd over 3.3). But my chip never hits 3.7, which I believe is the intended cap for turbo boost on my chip. Even when running all cores to 100% with Prime95, I only get 3.4, never higher.

Just wondering if anyone can shed some light on how turbo boost works. My entire system is bone stock still, besides setting my RAM from 1333 to 1600 and setting its volts to 1.5 (manufacturer specifications). Thanks so much for your time, and I really look forward to spending some quality study time on these boards!

Tyler
post #2 of 8
3.4GHz turbo speed in all 4 cores if i remember correctly. 3.7GHz max if turbo is applied in a single core.

If you need more power disable turbo and increase that multiplier. You will be astonished on how high this chips can go and how cool they run
I need upgrades
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CPUMotherboardGraphicsRAM
Phenom II X6 1090T Foxconn A79A-S PNY GTS450 XLR8 KVR800D2N6/2G 
Hard DriveHard DriveHard DriveHard Drive
WD2500AAKS WD3200AAKS WD10EARS WD3200JB 
Optical DriveOptical DriveCoolingOS
Asus DRW-1608P2 Asus DRW-1608P2 Corsair H70 Ubuntu Server 10.10 x64 
OSMonitorKeyboardPower
Windows 7 Professional x64 SP1 ASUS VW193S Logitech EX100 LC-Power 650W 
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I need upgrades
(21 items)
 
  
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Phenom II X6 1090T Foxconn A79A-S PNY GTS450 XLR8 KVR800D2N6/2G 
Hard DriveHard DriveHard DriveHard Drive
WD2500AAKS WD3200AAKS WD10EARS WD3200JB 
Optical DriveOptical DriveCoolingOS
Asus DRW-1608P2 Asus DRW-1608P2 Corsair H70 Ubuntu Server 10.10 x64 
OSMonitorKeyboardPower
Windows 7 Professional x64 SP1 ASUS VW193S Logitech EX100 LC-Power 650W 
CaseMouseAudioAudio
Coolermaster Stacker 830 SE Logitech EX100 Creative Audigy 2 ZS Creative i-Trigue L3450 
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post #3 of 8
Move the multi to 45, leave VID/vcore on auto, boot, test, prime, start to move down in voltage until unstable, then move back to stable. Increase multiplier, test, adjust voltage until stable.

rinse, repeat.
    
CPUMotherboardGraphicsRAM
Intel i5 2500 @ 4,004GHz (1.202v) Asus P8P67-PRO B3 Leadtek GTX260 65nm 896MB 700|1430|1100 4GB DDR3 Muskin 1686MHz 
Hard DriveOptical DriveOSMonitor
2xWD CB 250GB, 2x SG 320GB, 1xSS F1 1TB Pioneer DVD-RW Windows 7 Professional 64bit Samsung 2032BW 20" 1680x1050 16:10 
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Razer Lycosa CoolerMaster GX 550W Coolermaster Storm Sniper Razer DeathAdder 
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CPUMotherboardGraphicsRAM
Intel i5 2500 @ 4,004GHz (1.202v) Asus P8P67-PRO B3 Leadtek GTX260 65nm 896MB 700|1430|1100 4GB DDR3 Muskin 1686MHz 
Hard DriveOptical DriveOSMonitor
2xWD CB 250GB, 2x SG 320GB, 1xSS F1 1TB Pioneer DVD-RW Windows 7 Professional 64bit Samsung 2032BW 20" 1680x1050 16:10 
KeyboardPowerCaseMouse
Razer Lycosa CoolerMaster GX 550W Coolermaster Storm Sniper Razer DeathAdder 
Mouse Pad
Razer Goliathus 
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post #4 of 8
Thread Starter 
Beautiful! You guys are so fast! Thank you much for the replies . I was gonna wait for some better air cooling before I did any multiplier adjusting to this chip, do you guys think it would be safe to do a little OCing on a stock Intel HSF? I hear they are pretty crappy, and I'm running it on its little pre-applied thermal paste it came with (no Arctic Silver yet).

Thanks for the replies guys! Happy to be on a 32nm chip!
post #5 of 8
They are crappy alright...if it doesn't take long until the aftermarket cooler arrives at the place, try a little OC, don't push for over 4GHZ, stay there on full load for very long periods of time and monitor temps at all times. avoid being over 75ºC.
I need upgrades
(21 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II X6 1090T Foxconn A79A-S PNY GTS450 XLR8 KVR800D2N6/2G 
Hard DriveHard DriveHard DriveHard Drive
WD2500AAKS WD3200AAKS WD10EARS WD3200JB 
Optical DriveOptical DriveCoolingOS
Asus DRW-1608P2 Asus DRW-1608P2 Corsair H70 Ubuntu Server 10.10 x64 
OSMonitorKeyboardPower
Windows 7 Professional x64 SP1 ASUS VW193S Logitech EX100 LC-Power 650W 
CaseMouseAudioAudio
Coolermaster Stacker 830 SE Logitech EX100 Creative Audigy 2 ZS Creative i-Trigue L3450 
  hide details  
Reply
I need upgrades
(21 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II X6 1090T Foxconn A79A-S PNY GTS450 XLR8 KVR800D2N6/2G 
Hard DriveHard DriveHard DriveHard Drive
WD2500AAKS WD3200AAKS WD10EARS WD3200JB 
Optical DriveOptical DriveCoolingOS
Asus DRW-1608P2 Asus DRW-1608P2 Corsair H70 Ubuntu Server 10.10 x64 
OSMonitorKeyboardPower
Windows 7 Professional x64 SP1 ASUS VW193S Logitech EX100 LC-Power 650W 
CaseMouseAudioAudio
Coolermaster Stacker 830 SE Logitech EX100 Creative Audigy 2 ZS Creative i-Trigue L3450 
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post #6 of 8
Thread Starter 
Yeah I'm gonna hold off on any OC to my CPU till I snag an aftermarket. Even stock clocks with the stock HSF I'm getting 68 C on full load with Prime95. Can't imagine OCing would make it run under 75 C. In due time . But thank you guys for the input on the turbo boost as well. It was quite unexplained in the original Intel documentation about what it actually did.

post #7 of 8
i was running at 4.2 with the stock cooler and although it got up to about 83 under prime it never exceeded 60 in games!
4423-PC
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i5 2500k  ASUS Z77 Sabertooth GTX 295 Corsair vengeance 8GB 
Hard DriveOptical DriveCoolingOS
OCZ Agility 3 60GB + WD Cav Blue 320GB+SpinPoin... Generic DVD RW CM Hyper 212+ cpu cooler Windows 7 Pro  
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acer 23" 1920x1080 19" Samsung 1440x900 corsair GS 700W Antec 900 Custom (Still no big boy fan) 
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4423-PC
(15 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k  ASUS Z77 Sabertooth GTX 295 Corsair vengeance 8GB 
Hard DriveOptical DriveCoolingOS
OCZ Agility 3 60GB + WD Cav Blue 320GB+SpinPoin... Generic DVD RW CM Hyper 212+ cpu cooler Windows 7 Pro  
MonitorMonitorPowerCase
acer 23" 1920x1080 19" Samsung 1440x900 corsair GS 700W Antec 900 Custom (Still no big boy fan) 
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post #8 of 8
Thread Starter 
Right on. I guess it makes sense that Prime95 would raise my temps well above what any application would because of the 100% usage.

I used to live in LA, where from day to day the performance of an OC could change with the heat of socal. Now that I'm in cold, rainy SF, I think my ambient temps are of a more stable nature. Cold! I like it.
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