The Official Extreme Edition Overclocking Thread

[[KoG]^weaZel]

Pentium Extreme Edition 840 at 3.7 ghz Prime95 x4 stable for 24 hours (ok well not 24 hours but 23 hours and 55 minutes) with DDR833. The vcore was set to 1.40v in bios but would droop to 1.30-1.33 under 100% load. Will post screenie when I get home.

Parts used:
-Motherboard- Asus P5WD2 Premium
-PSU- PC Power and Cooling 510 SLI
-Cooling- Swiftech MCW-6000, Corsair COOL northbridge, 2-Koolance VID-NV2-LO6, Swiftech MCP-655, BIX III and a Typhoon Dual 5 1/4 reservoir.
-Memory- Corsair XMS2 8000UL 2x512 at DDR833 4-2-3-9 2.1v

this is a real crunching monster for D2OL running four "nodes" over double the output of my 3.4EE. Name on D2OL is weazel.

[olDirdey]

No overclocking picture, but some special P4 EE ES . It´s a 3.73 EE with only 1MB of L2 cache. I don´t know why cpu-z says it´s an nocona core.

But 1MB L2 is true, has same serial as 3.73 EE, only 1M and 2M is different printed on the HS.

[Kenshin]

I broke my personal record in super pi today 31s ! not so bad i hope!!! i havent done any modifications in winxp (Sp2)
my setup:

Ic7max3 (vtt mod) ddr booster 3.2EE @ 4ghz 1.63v fsb 250 1:1 Bh5 2-2-2-5 @ 3.4v

[deltarealm]

^^ Nice score, what sort of cooling are you using?

[Kenshin]

Iam using a standard mach2... does any one now if i can set my ddr booster to 3.6v its spec says max 3.4v but i can set it to 3.6 and higher but i dont now if its producing 3.6v any one know?

[Tulatin]

what sort of power supplies are you guys using to power these beasts? I'm topping out an ultra 600W just below a 25% OC...

[16floz470ml]

Iam using a standard mach2... does any one now if i can set my ddr booster to 3.6v its spec says max 3.4v but i can set it to 3.6 and higher but i dont now if its producing 3.6v any one know?

I also have a 3.2 ee. Mine is only stable up to 215 fsb I have good air cooling. What temps do you have to run to get it up to 4ghz? On your ddr booster you can check to see what your bios says the voltage is. I have an Antec TP 550.

[Kenshin]

iam using a ocz powerstream 520ADj.. topping out your power @ 600w what!! how do you know that? many harddrives?

16floz470ml iam am ideling in about -25c on the cpu @ 1.6v.
Do you have the stock cpu cooling faan? i think you can hit more!
what is your temps and what volt is your cpu at?

[Tulatin]

Wellll let's see here.
We've got the chip itself (which is strangely stable at 1.36/3.5GHz)
The mobo, using a LOT of the onboard goodies
4 Sticks of Ram
A 6800GT
TV Tuner
Gigabyte Wireless Router Card.
Then we have the optical drive and 4 HDDs, plus the 6 case fans.
Time to switch to an enermax 465

[16floz470ml]

Hello Kenshin. I have an asus star ice heat sink with fan. My idle temp is 37c and my load is 48c. Voltage is 1.6. No matter what I do it will not boot over 220fsb. I was hoping for more of an overclock. My 3e prescott overclocked outbenches my ee. And of course as soon as I got this a 3.4 ee became available for the same price.

iam using a ocz powerstream 520ADj.. topping out your power @ 600w what!! how do you know that? many harddrives?

16floz470ml iam am ideling in about -25c on the cpu @ 1.6v.
Do you have the stock cpu cooling faan? i think you can hit more!
what is your temps and what volt is your cpu at?

[deltarealm]

Hello Kenshin. I have an asus star ice heat sink with fan. My idle temp is 37c and my load is 48c. Voltage is 1.6. No matter what I do it will not boot over 220fsb. I was hoping for more of an overclock. My 3e prescott overclocked outbenches my ee. And of course as soon as I got this a 3.4 ee became available for the same price.

Don't worry about it. The 3.2EE that I have will only 225 FSB / 3.6 GHz stable on water.
After 3.6 you will need a lucky chip or some type of powerful cooling.
All chips never act the same, even if they are the same make and model.

[Kenshin]

Is it pc3200 mem you have and what is your volt on the mem? whitout my vtt mod i could only do about 225fsb.. and there is some guide on xs about setting up your bios for ic7 boards.. and yes prescott cpus is oc well my 3.2E does 290fsb 4.6ghz on my asus p4c800-E deluxe. not prime stable.. but it was under my 226w pelt + cold tapwater.. i havent tried it under my mach2!
so yes the oc well.

[Puni Puni Poemy]

Intel Pentium Extreme Edition 840 @ 3.73GHz / Core
233MHz (933) FSB
ASUS P5WD2 Premium Mobo
2x1GB Mushkin DDR2 @ 700MHz Cas 4-3-3-12
Koolance Exos 2 w/ Swiftech 6000 Waterblock
VCore set to 1.45 in Bios, Will drop to 1.35v Under 100% Load on all "4" Cores
100% Stable for 24Hr Memtest 86+, 24Hr Prime95 (4 Instances) - Idle 45C, Full Load 61C
Im happy but would have liked a higher FSB

Will post Screenies in a few

[I_G]

System in sig.

[Kenshin]

nice
what is your cpu temp -80c ????

[I_G]

nice
what is your cpu temp -80c ????

-43 at the evap head, -23 in the BIOS.

[Kenshin]

Can you bench in 3dmark 01, 03, 05 at that speed ?

[I_G]

Can you bench in 3dmark 01, 03, 05 at that speed ?

Nope, not quite...

'05=5117MHz

'03=5185MHz

'01=5116MHz

[Sandog]

I have the 840EE at 4.2GHz.

Intel D955XBK + 840EE 4.2GHz
Corsair TWIN2X1024A-5400UL 667MHz/8-2-3-3
Leadtek 7800GTX 492/1.33
WD 2500KS SATA II 250GB
Plextor 716SA
3DMark2005 8469

[[KoG]^weaZel]

I have the 840EE at 4.2GHz.

Intel D955XBK + 840EE 4.2GHz
Corsair TWIN2X1024A-5400UL 667MHz/8-2-3-3
Leadtek 7800GTX 492/1.33
WD 2500KS SATA II 250GB
Plextor 716SA
3DMark2005 8469

how are able to OC that much on an Intel brand motherboard?

[olDirdey]

Maybe he overclocks only with multiplier. With 840EE it´s possible.

[ingentingmendeg]

what sort of power supplies are you guys using to power these beasts? I'm topping out an ultra 600W just below a 25% OC...

ocz powerstream 520

[dpa]

955XE @ 5.5Ghz, Super Pi 1MB = 23.9sek

[Kenshin]

dpa nice spi score

[OC_newbie]

My system in sig below...