Overclock.net › Forums › Volt Mods › General Volt Mods › Pencil mods: how do they work?
New Posts  All Forums:Forum Nav:

Pencil mods: how do they work? - Page 2

post #11 of 19
Quote:
Originally Posted by TrueNoob View Post
what does shading the outside of the resistor have anything to do with voltage? isnt it whats inside the resistor that has anything to do with voltage...
Dude, wiki "voltage". Doing internet searches are your best friend.

Quote:
DC circuits

V = sqrt{PR}

R = frac{V}{I}

where V = potential difference (volts), I = current intensity (amps), R = resistance (ohms), P = power (watts).

...

Voltage drops

Across a resistor (Resistor R):

V_R = IR_R !
http://en.wikipedia.org/wiki/Voltage
Edited by Ihatethedukes - 7/28/08 at 12:49pm
Raptor Raper
(13 items)
 
  
CPUMotherboardGraphicsRAM
Something with transistors FOXCONN Boodrage -> eVGA classified e760 GTX 480 / HD6850@1090/1200 3x2 gig G Skill Trident DDR2000 
Hard DriveOptical DriveOSMonitor
2x128GB Crucial C300 Sumsung SATA DVD-RW 64 bit Windows 7 Samsung 245BW 
KeyboardPowerCaseMouse
Microsoft curve Tagan ITZ 800W DD Torture Rack Diamondback 
  hide details  
Reply
Raptor Raper
(13 items)
 
  
CPUMotherboardGraphicsRAM
Something with transistors FOXCONN Boodrage -> eVGA classified e760 GTX 480 / HD6850@1090/1200 3x2 gig G Skill Trident DDR2000 
Hard DriveOptical DriveOSMonitor
2x128GB Crucial C300 Sumsung SATA DVD-RW 64 bit Windows 7 Samsung 245BW 
KeyboardPowerCaseMouse
Microsoft curve Tagan ITZ 800W DD Torture Rack Diamondback 
  hide details  
Reply
post #12 of 19
So how is this any different than increasing voltage in bios or adjusting the Vdroop calibration line?

I mean, graphite will decrease this effect by becoming another resistor in parallel...But it seems very unreliable versus altering bios settings...
Edited by otterpopjunkie - 8/1/08 at 7:07pm
Core i7 for free!
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 2600K ASRock P67 EXTREME4 (B3) Radeon HD 5770 1GB 2x4GB DDR3-1600 
Hard DriveOSKeyboardPower
120GB Vertex2, 4TB Raid0 Win7 x64 Pro Logitech illuminated ultra thin 700W OCZ GameXstream 
CaseMouse Pad
old Clear and black Wow!pad 
  hide details  
Reply
Core i7 for free!
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 2600K ASRock P67 EXTREME4 (B3) Radeon HD 5770 1GB 2x4GB DDR3-1600 
Hard DriveOSKeyboardPower
120GB Vertex2, 4TB Raid0 Win7 x64 Pro Logitech illuminated ultra thin 700W OCZ GameXstream 
CaseMouse Pad
old Clear and black Wow!pad 
  hide details  
Reply
post #13 of 19
Quote:
Originally Posted by otterpopjunkie View Post
So how is this any different than increasing voltage in bios or adjusting the Vdroop calibration line?

I mean, graphite will decrease this effect by becoming another resistor in parallel...But it seems very unreliable versus altering bios settings...
some things just cant be adjusted with a setting in the bios. people might have a bad mobo, or you might want to apply this mod to your graphics card

Quote:
What exactly does the graphite have anything to do with anything as far as boosting anything... lol

how at all does a pencil do any good for volt modding?
the pencil mark goes from one end of the resistor to the other, making contact with the metal on both sides. its not just random scribbling lol..
Edited by eurostyle360 - 8/18/08 at 5:34pm
post #14 of 19
The electricity just by passes the resistor. It creates a short.
Junk Yard Hero
(13 items)
 
  
CPUMotherboardGraphicsRAM
FX 6300 M5a97 r2.0 hd 7770 1.28ghz core 8GB AData 1600mhz 
Hard DriveOptical DriveMonitorPower
500GB X n LG DVD-RW DL+- Samsung 216BW Two parallel 280-300w~ P3/4 era PSUs  
Case
Thermaltake Shark III 
  hide details  
Reply
Junk Yard Hero
(13 items)
 
  
CPUMotherboardGraphicsRAM
FX 6300 M5a97 r2.0 hd 7770 1.28ghz core 8GB AData 1600mhz 
Hard DriveOptical DriveMonitorPower
500GB X n LG DVD-RW DL+- Samsung 216BW Two parallel 280-300w~ P3/4 era PSUs  
Case
Thermaltake Shark III 
  hide details  
Reply
post #15 of 19
Quote:
Originally Posted by otterpopjunkie View Post
So how is this any different than increasing voltage in bios or adjusting the Vdroop calibration line?

I mean, graphite will decrease this effect by becoming another resistor in parallel...But it seems very unreliable versus altering bios settings...
Say you set your bios to 1.3v and without this mod it would turn out to be 1.25v in Windows and it even drops further down underload. With this mod you can eliminate the vDrop (from bios to windows) and reduce the vDroop(Loss of v underload).


So if you set your bios to 1.3v it will stay 1.3v and maybe go to 1.29v underload... you can overclock way more effective this way.
Blade Dancer
(14 items)
 
  
CPUMotherboardGraphicsRAM
FX8120 ASUS SABERTOOTH 990FX HD 7970 8Gb DDR3 CMX8GX3M2A1600C9 
Hard DriveCoolingOSMonitor
OCZ Vertex 120Gb Noctua NH-D14 Win7 Ultimate 64 22" x 2 Syncmaster BX2431 
KeyboardPowerCaseMouse
Das Keyboard CM 850w Real Power Silverstone TJ-07 MX518 
Mouse Pad
QcK Steel 
  hide details  
Reply
Blade Dancer
(14 items)
 
  
CPUMotherboardGraphicsRAM
FX8120 ASUS SABERTOOTH 990FX HD 7970 8Gb DDR3 CMX8GX3M2A1600C9 
Hard DriveCoolingOSMonitor
OCZ Vertex 120Gb Noctua NH-D14 Win7 Ultimate 64 22" x 2 Syncmaster BX2431 
KeyboardPowerCaseMouse
Das Keyboard CM 850w Real Power Silverstone TJ-07 MX518 
Mouse Pad
QcK Steel 
  hide details  
Reply
post #16 of 19
I know this is an old thread, but I wanted to comment:

This is not to be confused with multiplier lockout hack--a procedure that involves drawing a contact between two points on a CPU chip to allow for a multiplier to be "unlocked". Not sure of the validity of this, but I've heard it from various sources. I.E. http://www.computerpoweruser.com/Edi...6r04.asp&guid=

Any comments?
Sentry
(16 items)
 
  
CPUMotherboardGraphicsRAM
C3 955BE Asus M2N32-SLI Deluxe WiFi XFX GeForce 9800 GTX+ 2x2GB OCZ "Reaper 2" DDR2-1150 
Hard DriveOptical DriveCoolingOS
250G B'cuda, 1T Samsung Sony Optiarc DVD-RW AD-7170S black Coolermaster Hyper 212 plus Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
Asus LCD 1680*1050 Microsoft Natural 4000 Antec Truepower 2.0 480w blue Coolermaster Centurion 5 (blk/slvr+windw) 
MouseMouse PadAudioAudio
Coolermaster CM Storm Xornet Rich Mahogany Bookshelf speakers Standalone speaker amplifier 
  hide details  
Reply
Sentry
(16 items)
 
  
CPUMotherboardGraphicsRAM
C3 955BE Asus M2N32-SLI Deluxe WiFi XFX GeForce 9800 GTX+ 2x2GB OCZ "Reaper 2" DDR2-1150 
Hard DriveOptical DriveCoolingOS
250G B'cuda, 1T Samsung Sony Optiarc DVD-RW AD-7170S black Coolermaster Hyper 212 plus Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
Asus LCD 1680*1050 Microsoft Natural 4000 Antec Truepower 2.0 480w blue Coolermaster Centurion 5 (blk/slvr+windw) 
MouseMouse PadAudioAudio
Coolermaster CM Storm Xornet Rich Mahogany Bookshelf speakers Standalone speaker amplifier 
  hide details  
Reply
post #17 of 19
Yes. Don't post in dead threads.
Reincarnate
(13 items)
 
  
CPUMotherboardGraphicsRAM
3600+ Brisbane CAALG 0712 @2983MHz DFI LP DK 790GX-M2RS EVGA 7900GS 675/1700 vmod 2x2GB G.Skill PK 1066MHz 
Hard DriveOSPower
WD 1TB Black, WD250GB, WD250GB external Vista Ultimate OCZ 500W Modular 
  hide details  
Reply
Reincarnate
(13 items)
 
  
CPUMotherboardGraphicsRAM
3600+ Brisbane CAALG 0712 @2983MHz DFI LP DK 790GX-M2RS EVGA 7900GS 675/1700 vmod 2x2GB G.Skill PK 1066MHz 
Hard DriveOSPower
WD 1TB Black, WD250GB, WD250GB external Vista Ultimate OCZ 500W Modular 
  hide details  
Reply
post #18 of 19
This is in response to an old post but I thought I would weigh in.

Yes, graphite is a conductor--that is key. I have only seen one pencil mod that Monkey92 did. I was a little suspect because the mod was not being made on a resistor but rather a capacitor! He was using the graphite to provide a "real" current path across the plates of the capacitor. Concerned, I looked up the datasheet of the chip connected to the capacitor being shunted.

It was an AD3189 Sync Buck converter. Indeed, the datasheet shows a capacitor and a resistor in shunt with it. Therefore, what is happening in this particular mod is the shunt resistance is being reduced by a small amount. The graphite is applied to the capacitor because, due to their structure, they are about the only component that can be easily written on with a pencil. Unlike chip-capacitors, chip-resistors are very very small and do not have exposed terminals in the way that chip-capacitors do.

In summary, graphite provides a "real" current path and reduces whatever resistance was between the paths before, or creates a current path if one did not exist before.

A little long winded, but I thought someone might enjoy the details.
mypc
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 920 EVGA X58 Classified 760 2X EVGA GTX 285 6 GB G.Skill 1600 MHz 
Hard DriveOSPower
OCZ 120 Vertex SSD 2x 2TB WD Windows 7 Corsair 1000HX 
  hide details  
Reply
mypc
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 920 EVGA X58 Classified 760 2X EVGA GTX 285 6 GB G.Skill 1600 MHz 
Hard DriveOSPower
OCZ 120 Vertex SSD 2x 2TB WD Windows 7 Corsair 1000HX 
  hide details  
Reply
post #19 of 19
Thread Starter 
lol how do you guys find these old threads, i already got the answer,thanks dudes
    
CPUMotherboardGraphicsRAM
Q9450 3.7GHZ EVGA 780i FTW Evga 8800 GTS K.O X2 (SLI) 8GB GSkill PQ DDR2 1000 4x2GB 5-5-5-12 
Hard DriveOptical DriveOSMonitor
WD 500GB ASUS Black 20X DVD+R 8X DVD+RW 8X DVD+R DL 20X DVD WIndows 7 Ultimate LG Flatron 22" Wide Screen 
KeyboardPowerCaseMouse
Microsoft Wireless Entertainment 3000 750W Silverstone Cooler Master 690 Microsoft Wireless Laser Mouse 5000 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Q9450 3.7GHZ EVGA 780i FTW Evga 8800 GTS K.O X2 (SLI) 8GB GSkill PQ DDR2 1000 4x2GB 5-5-5-12 
Hard DriveOptical DriveOSMonitor
WD 500GB ASUS Black 20X DVD+R 8X DVD+RW 8X DVD+R DL 20X DVD WIndows 7 Ultimate LG Flatron 22" Wide Screen 
KeyboardPowerCaseMouse
Microsoft Wireless Entertainment 3000 750W Silverstone Cooler Master 690 Microsoft Wireless Laser Mouse 5000 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: General Volt Mods
Overclock.net › Forums › Volt Mods › General Volt Mods › Pencil mods: how do they work?