Is that a 70C temp I see in your siggy. I dont think you can reach 4Ghz on that temp....maybe you can change to watercooling to hit your 4Ghz dream

i got put devider for my ram & loosen off all the timings when i oc my cpu...
but shouldn't be the rams that cause the limitation...
as last night till now i'm running at 250mhz ddr500 2.5-3-3-5 PAT and test stable.

as for vcore.. , i've tried increase the vcore... it seems didn't works though..
at 3.6ghz 240 fsb, i'm 2 prime stable at 1.5v ....
got once when i'm madddd~ ... when ocing fsb 255 , keep upping my vcore till 1.65v ..
but still.. it didn't works... , as keep on fluctuating...
sigh..~.. so sad...`


hmm... if cooling it's the problem... how would the thermal cause the fluctuations of the frequency? ...
hmm... when i upping fsb above 240 , the full load temp. is 70c .
but prescott can handles safe temperature range till 80c right?
and again.. , is it possible that thermal causing the fluctuations?
i never heard intel cpu got this feature.

wah using KVR ram Overclock untill 500mhz.. gang !!

neh...`.. nothing great..`
i remember got one forumer hit 270mhz ddr540 with his kvr dt-d43....`
now that's amazing for a value rams to hit 270mhz ddr540 ...

According to the P4 90n datasheet, a 89w P4 (i.e 2.4A like mine) have a maximum Tc of
69C (Tc=the IHS temperature). Get the temperature close to that and thermal throttling will execute. Here are some power ratings and the max Tc.

90W = 69.4C
92W = 70C
94W = 70.6C
96W = 71.1C
98W = 71.7C
100W = 72.3C

But do remember that if you OC your P4 to a higher power ratings, it will still follow its original default max Tc. This is what I can find in the P4 datasheet. Hope people benefit from this.

SUPER GANG!! not like my sux corsiar VS ram.. add another 5mhz also can't .. system will not stable

Whats your PCI-E frequency when u hit 240MHZ? Mine can hit 125MHZ when i go to 250MHZ FSB even though i lock it in Bios. Oh have u try increase your Northbridge voltage? Try 1.7V, most ppl can go over 250MHZ with this voltage, Vcore dont go over 1.55, unless u have better cooling. I am using the same HSF like yours, but whats your mobo?

Ask Bwan himself, he did a 306Mhz FSB max with his d43 single stick last time....crazy~~

Dual channel I forgot his speed already, all at 3-4-4-8 BT version

it seems my max Tc is around 71-72c ..
but i did "disabled" the Thermal Control in the bios... as shut down the TM1 ..


hmm.. i'm using AGP mobo..
Asus P5P800 .. hybrid mobo... , lga775 socket, ddr400, agp .... lolzz
is vagp same as northbridge voltage?
wondering will wc let it hit 4ghz...``


uh-oh , 306mhz ddr612 .... that must be in dfi mobo..`

--------------------------------------------------------------------------
i still not sure what leads to the frequency fluctuation..,
either thermal/heat or the mobo 3 phase pwm ... or ... ?

A quote from the P4 90nm datasheet:

"The duty cycle for the TCC, when activated by the Thermal Monitor, is factory configured and cannot be modified. The Thermal Monitor does not require any additional hardware, software, drivers or interrupt handling routines."

I believe when you disable the TM1 in bios, you are acctually disabling the motherboard own protection system but the cpu protection system is funtioning on its own.

Oh not 915/925 chipset? Then u are save, just lock the PCI/AGP then u will be safe.

i have a P4 2.26Ghz Northwood (FSB 533), which i'm trying to overclock beyong 2.6ghz.

i'm too chicken to play with the overclocking settings in my bios (mobo=Gigabyte 8IK1100 875P), but gigabyte provides a software called Easytune which allows software overclocking within windows. Using that, everytime i try to get beyond 2.6ghz (increased my system bus from 133mhz to 155mhz), my pc just restarts by itself.

I've taken the risk and bumped up the voltage of my vcore from 1.5000v to 1.5500v. Dare not go higher than that with my crappy CM Aero 4. But i still can't get past the 2.6ghz barrier.

I heard that my chip can only achieve the max frequency of 2.6ghz coz that's the max internal clock that it could handle. Is that true?

P/S: I've no idea what i just said just now.

yeah... i'm curious of what's internal clock ??????????????
mine shows internal clock 4ghz...``
is it the internal clock limitation????

how to check the internal clock??

where to check internal clock actually?

use software such as AiDA, Everest, Sandra

In most cases, the prescott will do well with stock voltages. it's clockspeed will scale high even on stock voltages. The main problem is to get good hsf to 'remove' that massive amount of heat.



From ur sig, ur running on WC. it should cope with the emissive heat well. It performs as well or closed to any high End air coolers




Ur cpu is going thru thermal throttling. Eventhough u've turned off the thermal control in the bios, it is the ThermalControl embedded in the chip itself that is controlling the throttling, to keep the CPU's temperature in a safe range by reducing the frequency

4ghz?probably 3.8ghz is a more realistic approach.U need a good WC setup or a Super high End HSF. The hyper48 isn't good enof.

Ur giga mobo is a decent overclocker. All u need is to get rid of the Aero4 and get a better HSF. OS based overclocking utility is rubbish. The good ole Bios provides better tweaking manipulation. Probably, ur cpu would do around 2.8ghz-3.2ghz with a high end HSF, also, u need to test and find the sweet spot.



I'm not sure what u mean by 'internal clock', Cpu Speed u mean? The best way to check if it's throttling is to run superPI. There's a stage where u'll get uber slow calculation time.

To monitor the throttling activity, try downloading a program call 'ThrottleWatch'. Run some stress test eg; Prime95 with ThrottleWatch and u'll see whether the cpu is undergoing any throttling

If i'm not mistaken, he's on the adapted i865pe LGA based mobo

that 2.26Ghz 533fsb northwood really can hit 2.8 to 3.2?..

yeah...i was wondering that myself. I couldn't even get it to go beyond 2.6ghz and he says it can go all the way to 3.2? is it on air cooling or water cooling?

if it can really hit 3.2, then

I'm juz qouting the range of overclocking ability. of course,with superb cooling like WC, u can push the chip further

push ur Vcore summore to surpass the 2.6 barrier..
here is mine b4 with 2.0Ghz northwood with stock heatsink..



last time my 2.0@2.8Ghz load temp is about 58 degree.. let say if i had a wc sytem attact there and the temp drop around 5 degree, will it go any higher?.. bcoz after dat i've push the vcore to the max, the only stable is at 2.8.. cant go any higher..

my rig's is my sig there..i heard tat ppl say intel mobo can oc..but i c the genclock support for intel mobo..mean i can oc izit?? noobie here..

i tot everything was locked in intel mobo?..

kucing is rite, software in OS for OC sux

most probably u just did it in bios, set the ram ratio to 1:1 then start jacked up the fsb by 5-10mhz, if cant get into windows try to up vcore

i believe the restart is cause by the ram setting, since u r not on 1:1 setting, it turns to be the stone tht block the OC

i trust u can hit over 3ghz if u fine tuning inside bios

i see your voltage was at 1.68v. i dun even dare to go beyond 1.6v (my default was 1.5)


so u think i should just dump the software OC and meddle with the bios instead?
the problem is i do not know the limit of my chip. if overclocked too much, later become charcoal.

btw, the easytune software from gigabyte also overclocks the PCI, AGP, RAM frequencies as well (do not know 1f it's 1:1 for the ram or not), but i managed to run my RAM from 333 to 400 @ 2.6ghz.

you should lock your agp and pci to get a higher overclock. pci bus is very sensitive to high overclock. your hard disk runs from pci bus. you might get data lost at high pci frequency. [COLOR=red]overclock using your bios and lock your pci and agp. normally you will only be able to lock agp bus since pci is derived from 1/2 agp bus.

yeah..but hw come i c the website got intel mobo feature inside for the clockgen or the genclock wateva..hehe..means stil i cant use it>?

yup just dump the software if u r really goin into OC, n u should read from start n understand everything, only thing i can tell u for safe OC is: -

BE PATIENT, learn everything from start

then no need to go beyond 2.6Ghz la bro..

learn to use the bios setting dude.. much more fun.. there is lot of awesome guidance here..


thanx for ur info.. i dunno about this b4.. neway how bout u try to use it and show the result here.. let see how intel's mobo going..


agreed..

hhmm...i'll give that a try then....

hi,im using 630 3.0 processor currently using 915chipet mobo..

any COOLer to recommend? thinking of buying Artic cooling

i think its depend to ur taste.. either performance or the design.. by the way what is ur current temp for idle n load?..

Let's see, ur looking for some high performers?

Here are some recommendations:

Scythe NINJA , TT Big Typhoon, TR Si 120.

AFAIK, the Ninja is the best..period.

which 1 got quite n great performance??


current tempr with stockfan will increase to 55c' from 45' ..sometimes itlll restart automatically.

@kucingfight : congrats man,u now in elite group ady

Scythe Ninja pair with 120*120mm silence fan..

where can i buy Scythe Ninja ??how much??

U can buy it frm dinster bulk here
neway better u check it first either it fit in ur casing or not.. this heatsink quite huge..

thankx anyway

btw is it freezer 7 good?my fren using freezer 64,it is really quite n cool

uhmm i think it can keep the proc cool, but not into hardcore OC

yea...i have stopped OC from my M-barton,hehe

Now using 3.0 Em64T not bad la

hi guys, im noob at overclocking, pls help me.

im using P4 2.4 B, 512kb L2 cache.
i heard that this proc max clock speed is 3Ghz izzit true??

last time i was able to overclock my proc from 133 to 166, that is 2988Mhz. it was stable and can complete several benchmark. i was using 512MB apacer DDR RAM running at 2-3-3-7 timing. PCI & AGP frequency locked.

but after i add another 512MB RAM to my system, my PC cant OC even to 145 FSB, dunno why, can someone tell me??

the ram u added is apacer?

then freezer7 is still ok.. neway u can attach dual fan for them for increase the performance(maybe someday u wanna oc ur 3.0).. i luv their design actually..



what is the mobo u use?.. r u running in dual channel mode?.. both ram is identical(same brand and chips)?..

my mobo is ASUS P4P800-X i865PE

my PSU is POWER LOGIC ATRIX 500T, currently using 6800LE (dunno my PC enough power or not, but last time using cheapo PSU & 9600XT able to OC to 2988Mhz)

my RAM is APACER PC3200 (is cheapo RAM, bought at different time but should be same model), but due to my FSB is 133, so is running at PC2700 speed on dual channel.

>>do u think that maybe is my RAM not able to run on dual channel??

depends on the ram chips.. if both have diff chips, it is not suitable..

i finally dumped my O/C software and dived straight into my bios.

managed to only bump up to 160 b4 windows gave me the finger.

tried 165 @ 1.6v but windows didn't like it.

so now it's at 160 @ 1.6v, which is around 2.73ghz (up from 2.26. ori vcore=1.5v), which isn't much. It makes very little difference from my software OC)

then there's another problem. after i did the oc, i can't access my device manager. neither could i access my network connections (my LAN icon in my taskbar went MIA), but i still have internet connection.

RAM running at 400 (ori=333). AGP & PCI are locked.

also, after i o/c, windows asked me to re-activiate windows (i use ori) coz there was a significant hardware change. though reactivating it was no problem.

where did i go wrong?

in my opinion, it is still unstable for ur procs at that speed(2.73Ghz @ 1.6Vcore), and make whole ur system including the OS unstable.. maybe the 2.6Ghz is the wall already.. for the active connection at ur taskbar, have u check the checkbox at the connection properties("show icon in the notification area when connected") either it was checked or not?..