2009 Overclocking Competition

[simoko]

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PLL basically stands for Phase Lock Loop...it is a primary circuit that sets the overall clock, not just the procie but atso the NB & SB...PLLs are used by devices that are clocked against a reference where the resulting clock is higher than the reference clock...It works by taking an input waveform and generating a new waveform that locks it's phase to the incoming but with a multiple of the freqeuncy.mao na most multipiers are whole numbers, because to lock the phase you want the generated wave form to start at the same point of the period and end at the same point of the period to remains stable.

what then is CPU PLL Voltage:

all clock circuits have a certain amount of jitter...if u increase the clock speed u also increase the amount of jitter...by raising the PLL Voltage, u increase the noise margin, thereby lowering the perceived jitter...

PLL Voltage can give u two things:
1. the right amount would give u higher fsb(mas taas nga overclock)
2. too much of it, then u will have a processor for lunch...hehehehe

for more info read the following:
- http://download.intel.com/design/pro...s/31873201.pdf

@box2joe: basin naa ra ang option in one of the Advanced Settings sa BIOS...
@poldopunk: ako ym is simoko@ymail.com(sakto ba ko?)..sensya na, karon pa man gud ko aning ym2x oi...1st time ko
@mga ECE or CompE: ambot sakto ba kaha nako pagka explain...hehehe...BS N&D ra man gud ko...

[rockrhyan1982]

maka-gasto man sad tag ahat ani woi..hehehe nice ni dah..

[box2joe]

ako na gituki whole cell menu sa ako MSI P45 Platinum bios wala jud ko kakita ana nga settings sir.. tsk..tsk..tsk.. bati-a oi mas nindot jud d i unta kung na ko ana..

CPU Voltage
CPU GTL REF0
CPU GTL REF1
DRaM Voltage
DDR_VREF_A
DDR_VREF_B
MCH VOLTAGE
MCH GTL REF
VTT FSB VOLTAGE
ICH VOLTAGE

mao ra jud na ako nakita sa ako BIOS sir. check the link here para sa bios screenshot: MSI P45 Platinum Mainboard: Two PCB Revisions, Three BIOS Versions (page 6) - X-bit labs

mao ni picture sa cell menu

[poldopunk]

I'll break it down for you, jouie:

CPU Voltage = VID or VCore as commonly known
CPU GTL Ref 0 and Ref 1 = Global
DRAM Voltage = Memory Voltage
DDR VREF A and B = wa ko kabalo
MCH Voltage = the voltage for your northbridge chipset (MCH stands for Memory Controller Hub)
MCH GTL Ref = northbridge chipset GTL, check the edge of stability website for more info.
VTT FSB Voltage = Termination Voltage sa FSB or ang voltage sa FSB mismo
ICH Voltage = voltage sa imong southbridge chipset (ICH is short for I/O controller Hub)

I'll create another thread later on that will hopefully maka enlighten sa mga DFI users (apil ko) kay comprehensive kaayo ni nga setting sa GENIE BIOS is Oskar tapos wala explanation. Let's basically share our ideas on how we understand these settings for a stable overclock with lesser voltage.

[mE_bytes]

nindot lge ni nuh? n_n., when man ni siya and unsa guidelines and criteria?

[isaacrobot]

awesome sir simoko! bow bow bow

[dmelsie]

ayos sad ni mobasa diri da nay makuha ta na info pang prepair prepair if mag oc na

[fineupgrades]

thanks sir yoyong, very informative kaayo..

[poldopunk]

^ maypa imong 4300, kaabot ug 3.2GHz.

ako tawn E4500, kaabot sad pero dili prime95 stable.

[poldopunk]

well, technically, same raman ta ug proc so pare-pareha rasad ta ang nakabati lang sa akoa kay from 2.2 - 2.8, no voltage adjustments pag 3.0 above, grabeh! MASSIVE na ang gipangayo nga voltages sa akong proc. tsk, tsk.