output = CFM = the amount or air in manages to scoop in....

optimally = working in good condition.

hmm it doesn't show any CFM indicator on it.The only difference that I know between the two fans is that one has a .016A current and another another one has a 0.44A current. The 0.16A has a relatively small fan and heatsink.But i do need to know if this fan can support P4 3GHz.

does it both has the same size...???

The P4 2GHz is a bit smaller in size compare to the P4 3GHz.

though it can fit but it's recommended to use the 3.0 hsf, cos intel won't be simply increasing the dimension and the fan power just for nothing.
btw, ur 3.0 is prescott? or northwood?

yeah im using 2.4....but i dun tink its 2.4c,i tink its 2.4a..my default is 133x18 n i cant change da multiplier..its locked...o yeah wat do u mean by use da divider?wat does dat mean?how 2 use?lol sorry noob in oc here

Here's my highest non-stable attempt so far...



Abit AW8-MAX (i955X) - Intel P4 520 (2.8 GHz) - Corsair XMS2 Corsair 5400UL 2x512MB - ATI Radeon X800XL 512MB - Maxtor 80GB PATA - Antec NeoPower480 - SilverStone TJ05

-Original CPU/Socket : Intel® Pentium® 4 520 2.8GHz L1 : 16/12 KB - L2 : 1MB
-Stepping/ Core: Prescott
-Date : -
-FSB : 200
-Clock Speed : 2880Mhz
-Voltage (CPU/RAM/Chipset/AGP) : 1.4v/1.8v/2.0v/1.35v
-Ram Type/Speed/Timings : Corsair 5400UL 512x2 = 4-3-3-8 2.3v
-----------------------------
Motherboard
- Brand : Abit
- Model : AW8-MAX
- Chipset : i955X
- AGP/PCIE : PCIE
- Bios Version : 11
-------------------------------
Results.(Min. 3 Filled)

-Highest FSB : 280 * 14
-Highest RAM : (465.5) 3:5
-Highest Clock Speed : 3910 MHz
-Highest Vcore : 1.66v
-Highest VDIMM : 2.3v
----------------------------

I would say throw in some money for a better heatsink.

Like thermalright, hyper6+, etc.


pengster, try check ur bios.

There will be divider like 1:1, 6:5, 5:4....

i heard intel got SLI too... on new chipset..


AMD only wins if prescott disable the HT....AMD X2 should compare with Pentium D dual core too btw im intel user here..

lol...AMD XP can't compare with dual core lol
AMD 64 or some stock FX will win prescott is HT disable
but with AMD X2, it pwn Intel on multitaking also, but just, the price

i a newbie after reading this thread, i tried to overclock my computer...but the multiplier is locked? what can i do to unlock it?

Intel not like AMD unless u with Engineering sample.
I believe u really a newbie, Intel multiplier always locked.

u can only raise the fsb if u want to OC.

ah sorry2 ...typo error...should be AMD X2

erm...plan to get intel 630 anyone ovrclock it?

i would to ask.. is there any1 out there try b4 OCing P4 willamette (1st ed P4). hows d result?

i did...lol ..pain in the rear back then , the board had no pci/agp lock

increase the fsb
the multiplier is locked

ok la that result... thats wat a willamette can will giv u..its hard to oc...after all d multiplier is lock. but i`ve seen that a willamitte P4 1.6 can OC to 2.9Ghz u can check it out at www.cpudatabase.com/index.cfm?Action=search

other guys can also check it out as reference

need to addsomething...

eeee.... correct me if i am wrong...

how about the cpu voltage or timing?

P4 2.8E s478 rev C0 (the 1st version of Prescott)

o/ced to 3.58GHz prime stable @ 1.55V
255mhz FSB
5:4 divider (my lousy KVR d43 ram can only do 248mhz max)

haven't got time to try higher FSB. air-cond billl to expensive (the thing darn hot on my xp-90)

hi..juz wanna ask and clarify sumthin here..im using 2.8c and manage to OC to 3.5ghz with 5:4 divider (250fsb)..manage to get 3.7+ before but not stable..btw im using 2x512 apacer ddr400 cl3 ram..

my questions:

1. I wanted to use 1:1 divider but i know it is impossible to do so wif my lousy apacer..izit possible for me to increase the vdimm and get higher fsb wif that 5:4 divider?

2. Wut is the highest vdimm that the apacer can stand? hehe so worried if i misraised the vdimm n burn my rams..

thanks to all sifu..

My system can oc?

Intel LGA775 Prescott 3.0ghz 531+
512mbram SD DDRAM PC3200
ASROCK 775i65GV
Seada 400 watt
Intel Stock Cooler
(idle temparature is 38-41 celcius:sometimes 44 but will drop later)
WesternDigital 80GB
1 casing fan(blow hot air out) + open casing (use table fan to blow the system)
...............

reez you can up Vdimm up to 2.9 V at least to be on the safe side.

dun overclock unless u want to cook your mobo

hmmm..u mean 2.9v is a safe limit for any type of memory?

sort off. But bro no gurantees

even wif 5:4 divider still cant go pass 260fsb even increased the vdimm..seems like my apacer is the bottleneck..

anyone on DDR2 here? can i use divider 1:1 so my proc FSB 266...till now i cant boot when i use divider 1:1

what is the best oc mobo for LGA775??

For OC, Abit/ASUS/DFI and etc

Oh yeah, does Abit boards still flunctuate during load on the LGA models??

hmm... don't take asus p5p800 lga775 board...

i can't oc over 3.6ghz ... max is 3.6ghz.. can't go further no matter how i try...

if i get the best OC mobo..
then what cooling is the best for prescott..
not over than RM 190..
want idle temp at 30"c+

get either thermalright xp90 or xp90c.
but if ur using prescott i doubt it can b around 30c after OC.
for that must go for watercooling oredi.

idle temp should be around 40c++
with stock hsf, the idle temp for presscott is around 50c

I have the same proc as urs..
using Abit AS8-V
[attachmentid=71220]



P5P800 can overclock very well..u need Vcore Vdroop mod..
P5P800 vcore very unstable.

walao...u guys pro man,im using a 531 idle at 55C darn hot man my CPU...what HSF did u use on ur 531,& u manage to OC it till 4Ghz?

Izzit really Intel board cant OC cause im using an Intel board

just noticed this thread...hmm...fuss fuss

anyways intel mobo is a NO-NO for overclockers since..there is no way of modifying any 'MHz'.

i think newer Intel's motherboard BIOS settings have a "Burn-In" feature which allow you to overclock 4-5% from the default speed.
but the vcore, vdimm locked

Evogenix

wah la..so hot huh urs..

here's screenie with dual prime95 for 1 hours plus.
Full load : 51'c only.

im using TT Silent tower with 2 fan..

[attachmentid=71233]

this is my friend rig. that day he ask me 2 install sth for him, than i tangan gatal, use his com n oc!

ram forgot what timing liao, it is 2x256mb DDR400 KVR.

Darn,if i found this thread earlier,i wont get a Intel mobo... my 531 are using stock HSF,duno why its so darn hot compare to other 531 user...

how can i get into the bios system on a intel mobo,once i on my pc it will show a Intel logo,then jump to XP loading...any short cut key to enter bios?

press delete key.
environment temp also affects the proc temp.
make sure casing airlflow is good.

im using prescott 2.4A 533 mhz and keen to know how far can i OC?

i read some website and it says that stepping of 2EL able to touch 4 gig

My stepping is the same

right now i able to OC till 3.24 gig without touching the Vcore...

anyone can provide any info?

I got the P4 2.8E, prescott 1MB L2 cache. and idle temperature is 42c and when i use to play warcraft 3 3 hours the temperature around 52c, after i close the warcraft 3, the temperature will slower down from 52c to 44c with in 10 seconds. but when i oc to 3.0 the temperature will up to 60c not full load. i think if full load, then ................, so anybody suggest me a good CPU cooler heatsink, less than RM100,

Thermaltake or cooler master suggest me

..dontt know wether my mobo detect correct temperature or not..
now,,using stock HSF,my P531+ temp just around (38-42) idle..
.your result?

my P4 531 idle at 55c load at 65c getting hot in here

It is normal for prescott to run that hot, but you have to be aware of thermal throttling as well. There will be no gain from overclocking provided the processor is throttling down due to excessive heat. Attached is a monitoring software commonly used to observe throttling activity.

Anyone suggest a good cpu cooler for my P4 2.8E?

budget less than RM100