Overclock.net › Forums › Intel › Intel - General › Overclocking Engineering
New Posts  All Forums:Forum Nav:

Overclocking Engineering

post #1 of 13
Thread Starter 
Im currently an EE major and now that Ive performed my first overclock (thanks to the help of these forums I might add), I have some questions as to the actual engineering thats going on when a person overclocks.

As the name implies, "overclock", I would think that when a person is overclocking that they are effectively increasing the frequency of the CLK, clock, timer that is used in the activation of data transfer/calculation, ala. flip flop or register. Is this a correct assumption? Because a processor functions on the based upon the CLK timer to perform its operations (at least on basic Boolean circuit levels) by upping the CLK frequency your allowing the processor to up its operational frequency and giving it adequate information via the FSB which operates on the same CLK. Granted, modern computers likely function in a much more complex means than your basic Boolean circuit but still. Is this a correct assumption on my part?

Additionally, in basic Boolean circuits the CLK frequency is determined by a crystal (quartz I believe) that vibrates based upon the electrical current applied to it. I suspect that on modern computers this method isnt used but if it is is this one of the things that can actually burn out when an overclock is taken too far? Are you litterally burning this crystal element (if its still used) or if a different technique is used to regulate the CLK timings is that element burning out?

Ill probably have more of these painful questions as I learn (or think Im learning lol) along my EE curriculum =) Thanks in advance!
Frag Machine
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6300 L629A@3.00GHz Gigabyte 965P-S3 BFG 8800GTS 640MB 2xOCZ DDR2 800 Plat Rev 2 
Hard DriveOptical DriveOSMonitor
2x250 Lite On DVD-RW XP Home & Vista Ultimate Sony 24in CRT 19inw LCD 1920x1200 + 1440x900 
KeyboardPowerCaseMouse
Saitek Eclipse II Antec Trio 650W Antec P180 Logitech G5 
Mouse Pad
Steel Pad QcK+ 
  hide details  
Reply
Frag Machine
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6300 L629A@3.00GHz Gigabyte 965P-S3 BFG 8800GTS 640MB 2xOCZ DDR2 800 Plat Rev 2 
Hard DriveOptical DriveOSMonitor
2x250 Lite On DVD-RW XP Home & Vista Ultimate Sony 24in CRT 19inw LCD 1920x1200 + 1440x900 
KeyboardPowerCaseMouse
Saitek Eclipse II Antec Trio 650W Antec P180 Logitech G5 
Mouse Pad
Steel Pad QcK+ 
  hide details  
Reply
post #2 of 13
i think you've hit the nail on the head here,
it sounds right
Finaly Dual Core
(13 items)
 
  
CPUMotherboardGraphicsRAM
Pentium D 805 4Gz ABIT AW9D-MAX Saphire x1950 Pro 512 4x512 Buffalo Firestix 
Hard DriveOptical DriveOSMonitor
160 SATAII 2x30 IDE RAID Samsung DVD-RW e / XP Pro / Ubuntu 7.04 Viewsonic 19" Pro 
KeyboardPowerCaseMouse
Generic 500 generic 20amp 12v My Sexy Baby Inland Laser Mouse 
Mouse Pad
My Desk 
  hide details  
Reply
Finaly Dual Core
(13 items)
 
  
CPUMotherboardGraphicsRAM
Pentium D 805 4Gz ABIT AW9D-MAX Saphire x1950 Pro 512 4x512 Buffalo Firestix 
Hard DriveOptical DriveOSMonitor
160 SATAII 2x30 IDE RAID Samsung DVD-RW e / XP Pro / Ubuntu 7.04 Viewsonic 19" Pro 
KeyboardPowerCaseMouse
Generic 500 generic 20amp 12v My Sexy Baby Inland Laser Mouse 
Mouse Pad
My Desk 
  hide details  
Reply
post #3 of 13
I'm an EE. Modern motherboards use a quartz crystal to drive an IC called a clock synthesizer which is similar to a Phase Lock Loop, or PLL (another method of multiplying and dividing a frequency to output a different frequency). This clock sythesizer generates a number of different clock outputs at different frequencies. One is for the CPU, another for the northbridge, another for the PCI bus, etc. All of these source clocks are fixed. You are not overclocking them so you're not putting stress on the crystal or the synthesizer.
The CPU has its own internal PLL that multiplies that source clock up to the operating frequency. It is a programmable PLL and this is what you are changing when you "overclock" a CPU. So all the stress is on the CPU.

So:
Crystal (20MHz) --> Synth --(100MHz)------> CPU PLL --(2.5GHz+/-) = CPU internal clock
     
CPUMotherboardGraphicsRAM
7700K Delid @5.1GHz @1.4V Asus Z270F Strix Asus RX480 Strix @ 1400MHz Corsair Vengance PC3200 2x8GB 
Hard DriveHard DriveHard DriveOptical Drive
Sandisk Ultra II 960GB 2 x Intel 530 SSD 2 x 3TB HDD LG BD-R 
CoolingOSMonitorPower
Noctua NH-D15 Windows 10 Home Dell 27" 1080p Seasonic Prime 750W Titanium 
CaseMouse
Fractal Define R5 Razer DeathAdder 
CPUMotherboardGraphicsRAM
i7 2600K @4.6GHz @1.4V Gigabyte GA-Z68-D3H-B3 AMD RX480 4x4GB GSkill RipjawsX 1600 CL8 
Hard DriveOptical DriveCoolingOS
2 X Intel 530 240GB + 4TB HDD LG BD-RW Cooler Master Hyper 212 Windows 10 
MonitorKeyboardPowerCase
Dell 27" 1080p Microsoft Seasonic Prime 750W Titanium Fractal Define R5 
Mouse
Razer DeathAdder 
  hide details  
Reply
     
CPUMotherboardGraphicsRAM
7700K Delid @5.1GHz @1.4V Asus Z270F Strix Asus RX480 Strix @ 1400MHz Corsair Vengance PC3200 2x8GB 
Hard DriveHard DriveHard DriveOptical Drive
Sandisk Ultra II 960GB 2 x Intel 530 SSD 2 x 3TB HDD LG BD-R 
CoolingOSMonitorPower
Noctua NH-D15 Windows 10 Home Dell 27" 1080p Seasonic Prime 750W Titanium 
CaseMouse
Fractal Define R5 Razer DeathAdder 
CPUMotherboardGraphicsRAM
i7 2600K @4.6GHz @1.4V Gigabyte GA-Z68-D3H-B3 AMD RX480 4x4GB GSkill RipjawsX 1600 CL8 
Hard DriveOptical DriveCoolingOS
2 X Intel 530 240GB + 4TB HDD LG BD-RW Cooler Master Hyper 212 Windows 10 
MonitorKeyboardPowerCase
Dell 27" 1080p Microsoft Seasonic Prime 750W Titanium Fractal Define R5 
Mouse
Razer DeathAdder 
  hide details  
Reply
post #4 of 13
Thread Starter 
Ahhhh, very interesting =) Im honestly surprised that a crystal is still used both in the motherboard and the CPU. Given the modern age we live in and were still using small pieces of stone to determine frequency. I wonder at what frequency it would take to physically destroy the crystal making the use of a crystal impossible.
Frag Machine
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6300 L629A@3.00GHz Gigabyte 965P-S3 BFG 8800GTS 640MB 2xOCZ DDR2 800 Plat Rev 2 
Hard DriveOptical DriveOSMonitor
2x250 Lite On DVD-RW XP Home & Vista Ultimate Sony 24in CRT 19inw LCD 1920x1200 + 1440x900 
KeyboardPowerCaseMouse
Saitek Eclipse II Antec Trio 650W Antec P180 Logitech G5 
Mouse Pad
Steel Pad QcK+ 
  hide details  
Reply
Frag Machine
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6300 L629A@3.00GHz Gigabyte 965P-S3 BFG 8800GTS 640MB 2xOCZ DDR2 800 Plat Rev 2 
Hard DriveOptical DriveOSMonitor
2x250 Lite On DVD-RW XP Home & Vista Ultimate Sony 24in CRT 19inw LCD 1920x1200 + 1440x900 
KeyboardPowerCaseMouse
Saitek Eclipse II Antec Trio 650W Antec P180 Logitech G5 
Mouse Pad
Steel Pad QcK+ 
  hide details  
Reply
post #5 of 13
Don't dis vibrating stones man They abide by the laws of physics so they provide a very stable clock source. And they're cheap so they're not going away anytime soon.

Well, crystals are really only capable of vibrating up to 40 or 50MHz. And at those frequencies, they have to be cut so thin that they are very fragile, so hardly anyone makes a crystal for those frequencies. What they do is use a filter to filter out the fundamental frequency of the crystal and instead make the 3rd harmonic the output of the crystal. This allows 3X the frequency from the crystal (at the expense of some jitter and stability, but much less fragile). Still this will only get you to about 125MHz. For higher frequencies there is a different technology called SAW, which is still quartz but much thicker and shaped like a tuning fork.

So a crystal + PLL will provide clock sources for modern computers for sometime.
     
CPUMotherboardGraphicsRAM
7700K Delid @5.1GHz @1.4V Asus Z270F Strix Asus RX480 Strix @ 1400MHz Corsair Vengance PC3200 2x8GB 
Hard DriveHard DriveHard DriveOptical Drive
Sandisk Ultra II 960GB 2 x Intel 530 SSD 2 x 3TB HDD LG BD-R 
CoolingOSMonitorPower
Noctua NH-D15 Windows 10 Home Dell 27" 1080p Seasonic Prime 750W Titanium 
CaseMouse
Fractal Define R5 Razer DeathAdder 
CPUMotherboardGraphicsRAM
i7 2600K @4.6GHz @1.4V Gigabyte GA-Z68-D3H-B3 AMD RX480 4x4GB GSkill RipjawsX 1600 CL8 
Hard DriveOptical DriveCoolingOS
2 X Intel 530 240GB + 4TB HDD LG BD-RW Cooler Master Hyper 212 Windows 10 
MonitorKeyboardPowerCase
Dell 27" 1080p Microsoft Seasonic Prime 750W Titanium Fractal Define R5 
Mouse
Razer DeathAdder 
  hide details  
Reply
     
CPUMotherboardGraphicsRAM
7700K Delid @5.1GHz @1.4V Asus Z270F Strix Asus RX480 Strix @ 1400MHz Corsair Vengance PC3200 2x8GB 
Hard DriveHard DriveHard DriveOptical Drive
Sandisk Ultra II 960GB 2 x Intel 530 SSD 2 x 3TB HDD LG BD-R 
CoolingOSMonitorPower
Noctua NH-D15 Windows 10 Home Dell 27" 1080p Seasonic Prime 750W Titanium 
CaseMouse
Fractal Define R5 Razer DeathAdder 
CPUMotherboardGraphicsRAM
i7 2600K @4.6GHz @1.4V Gigabyte GA-Z68-D3H-B3 AMD RX480 4x4GB GSkill RipjawsX 1600 CL8 
Hard DriveOptical DriveCoolingOS
2 X Intel 530 240GB + 4TB HDD LG BD-RW Cooler Master Hyper 212 Windows 10 
MonitorKeyboardPowerCase
Dell 27" 1080p Microsoft Seasonic Prime 750W Titanium Fractal Define R5 
Mouse
Razer DeathAdder 
  hide details  
Reply
post #6 of 13
I know/remember a little electronics from my USAF training and I have to say this is the coolest thread I have read in awhile. All the engineer stuff is very interesting to me.
Home built MacPro
(13 items)
 
  
CPUMotherboardGraphicsRAM
Dual ES Clovertowns MacPro Nvidia 7300GT 4 x 2GB FB-DIMM 
Hard DriveOSMonitorKeyboard
Which one? OS X 10.5 Dual ViewSonic VP201B Apple Keyboard 
PowerCaseMouse
MacPro 980W MacPro Mightmouse 
  hide details  
Reply
Home built MacPro
(13 items)
 
  
CPUMotherboardGraphicsRAM
Dual ES Clovertowns MacPro Nvidia 7300GT 4 x 2GB FB-DIMM 
Hard DriveOSMonitorKeyboard
Which one? OS X 10.5 Dual ViewSonic VP201B Apple Keyboard 
PowerCaseMouse
MacPro 980W MacPro Mightmouse 
  hide details  
Reply
post #7 of 13
Thread Starter 
More interesting information, though a bit over my head still. Hopefully it wont be long before I have a better grasp on some of the things I dont quite understand. Take Microprocessors next semester so hopefully that will give me some insight and isnt ALL Assembly language =P
Frag Machine
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6300 L629A@3.00GHz Gigabyte 965P-S3 BFG 8800GTS 640MB 2xOCZ DDR2 800 Plat Rev 2 
Hard DriveOptical DriveOSMonitor
2x250 Lite On DVD-RW XP Home & Vista Ultimate Sony 24in CRT 19inw LCD 1920x1200 + 1440x900 
KeyboardPowerCaseMouse
Saitek Eclipse II Antec Trio 650W Antec P180 Logitech G5 
Mouse Pad
Steel Pad QcK+ 
  hide details  
Reply
Frag Machine
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6300 L629A@3.00GHz Gigabyte 965P-S3 BFG 8800GTS 640MB 2xOCZ DDR2 800 Plat Rev 2 
Hard DriveOptical DriveOSMonitor
2x250 Lite On DVD-RW XP Home & Vista Ultimate Sony 24in CRT 19inw LCD 1920x1200 + 1440x900 
KeyboardPowerCaseMouse
Saitek Eclipse II Antec Trio 650W Antec P180 Logitech G5 
Mouse Pad
Steel Pad QcK+ 
  hide details  
Reply
post #8 of 13
Quote:
Originally Posted by nagal View Post
I know/remember a little electronics from my USAF training and I have to say this is the coolest thread I have read in awhile. All the engineer stuff is very interesting to me.
2nd that!
Flux
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600K GA-P67A-UD7 GTX 580 2 x 2GB Corsair 
Hard DriveOptical DriveOSMonitor
C300 (OS), Velociraptor (storage) Lite-On W7 64-bit Pro Samsung 275T 
KeyboardPowerCaseMouse
Black Widow Ult. Silverstone DA750 Lian Li T60 R.A.T. 7 
Mouse Pad
Q-Pad 
  hide details  
Reply
Flux
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600K GA-P67A-UD7 GTX 580 2 x 2GB Corsair 
Hard DriveOptical DriveOSMonitor
C300 (OS), Velociraptor (storage) Lite-On W7 64-bit Pro Samsung 275T 
KeyboardPowerCaseMouse
Black Widow Ult. Silverstone DA750 Lian Li T60 R.A.T. 7 
Mouse Pad
Q-Pad 
  hide details  
Reply
post #9 of 13
This was actually a good thread to browse and learn from...
Although I might've got the "wild hair" and looked it up and all it was refreshing to hear from people who know and are learning....
A+ from da PROBN!!!
PRONE
(19 items)
 
Cap't Crunch
(14 items)
 
 
CPUMotherboardGraphicsRAM
i7 3930k @ 5Ghz Msi X79A-GD45 Gigabyte Radeon 7950 Patriot Sector 7 
Hard DriveOptical DriveCoolingCooling
2xCorsair Force Series 3 Raid-0 LG DVDR/W Custom Water Loop Swiftech Apogee Drive II waterblock/pump 
CoolingCoolingOSMonitor
Swiftech MCRES-Micro Rev 2 Larkooler 240mm Rad server 2008 RC2 HP 2207HD 
KeyboardPowerCaseMouse
HP Classic wireless PC Power and Cooling Silencer Mk II 950W High P... NZXT Phantom...again lol HP Classic wireless 
Mouse PadAudioOther
MicroCenter Onboard TBA 
CPUMotherboardGraphicsRAM
2500k Maximus V Extreme Radeon 6950HD Avexir 
Hard DriveOptical DriveCoolingOS
Corsair Force 3 LG DVD RW Corsair H100i WIndowd 8.1 
MonitorKeyboardPowerCase
HP 2159M Logitech CX750M Cosair Carbide 540AIR 
MouseMouse Pad
logitech logitech 
  hide details  
Reply
PRONE
(19 items)
 
Cap't Crunch
(14 items)
 
 
CPUMotherboardGraphicsRAM
i7 3930k @ 5Ghz Msi X79A-GD45 Gigabyte Radeon 7950 Patriot Sector 7 
Hard DriveOptical DriveCoolingCooling
2xCorsair Force Series 3 Raid-0 LG DVDR/W Custom Water Loop Swiftech Apogee Drive II waterblock/pump 
CoolingCoolingOSMonitor
Swiftech MCRES-Micro Rev 2 Larkooler 240mm Rad server 2008 RC2 HP 2207HD 
KeyboardPowerCaseMouse
HP Classic wireless PC Power and Cooling Silencer Mk II 950W High P... NZXT Phantom...again lol HP Classic wireless 
Mouse PadAudioOther
MicroCenter Onboard TBA 
CPUMotherboardGraphicsRAM
2500k Maximus V Extreme Radeon 6950HD Avexir 
Hard DriveOptical DriveCoolingOS
Corsair Force 3 LG DVD RW Corsair H100i WIndowd 8.1 
MonitorKeyboardPowerCase
HP 2159M Logitech CX750M Cosair Carbide 540AIR 
MouseMouse Pad
logitech logitech 
  hide details  
Reply
post #10 of 13
Quote:
Originally Posted by PROBN4LYFE View Post
This was actually a good thread to browse and learn from...
Although I might've got the "wild hair" and looked it up and all it was refreshing to hear from people who know and are learning....
A+ from da PROBN!!!
PRONE
(19 items)
 
Cap't Crunch
(14 items)
 
 
CPUMotherboardGraphicsRAM
i7 3930k @ 5Ghz Msi X79A-GD45 Gigabyte Radeon 7950 Patriot Sector 7 
Hard DriveOptical DriveCoolingCooling
2xCorsair Force Series 3 Raid-0 LG DVDR/W Custom Water Loop Swiftech Apogee Drive II waterblock/pump 
CoolingCoolingOSMonitor
Swiftech MCRES-Micro Rev 2 Larkooler 240mm Rad server 2008 RC2 HP 2207HD 
KeyboardPowerCaseMouse
HP Classic wireless PC Power and Cooling Silencer Mk II 950W High P... NZXT Phantom...again lol HP Classic wireless 
Mouse PadAudioOther
MicroCenter Onboard TBA 
CPUMotherboardGraphicsRAM
2500k Maximus V Extreme Radeon 6950HD Avexir 
Hard DriveOptical DriveCoolingOS
Corsair Force 3 LG DVD RW Corsair H100i WIndowd 8.1 
MonitorKeyboardPowerCase
HP 2159M Logitech CX750M Cosair Carbide 540AIR 
MouseMouse Pad
logitech logitech 
  hide details  
Reply
PRONE
(19 items)
 
Cap't Crunch
(14 items)
 
 
CPUMotherboardGraphicsRAM
i7 3930k @ 5Ghz Msi X79A-GD45 Gigabyte Radeon 7950 Patriot Sector 7 
Hard DriveOptical DriveCoolingCooling
2xCorsair Force Series 3 Raid-0 LG DVDR/W Custom Water Loop Swiftech Apogee Drive II waterblock/pump 
CoolingCoolingOSMonitor
Swiftech MCRES-Micro Rev 2 Larkooler 240mm Rad server 2008 RC2 HP 2207HD 
KeyboardPowerCaseMouse
HP Classic wireless PC Power and Cooling Silencer Mk II 950W High P... NZXT Phantom...again lol HP Classic wireless 
Mouse PadAudioOther
MicroCenter Onboard TBA 
CPUMotherboardGraphicsRAM
2500k Maximus V Extreme Radeon 6950HD Avexir 
Hard DriveOptical DriveCoolingOS
Corsair Force 3 LG DVD RW Corsair H100i WIndowd 8.1 
MonitorKeyboardPowerCase
HP 2159M Logitech CX750M Cosair Carbide 540AIR 
MouseMouse Pad
logitech logitech 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel - General
Overclock.net › Forums › Intel › Intel - General › Overclocking Engineering