I need a program that will stress all four cores on my Q6600.

Don't know. Most of us just run 4 instances of Prime95.

3ds max will stress all four cores during render. Not only does it render using all 4 but it uses them at 100% until the render is complete. Your vertices's / polygons have to be higher than a certain amount. It is the first program I've used that will stress all cores at 100% till the task is finished. I do not have a workstation card so most of the render utilizes the cpu. The render used was a 3d model of a jet turbine engine so the polys were high.
*this is not a simple program

Run P95 4 instances.

Or run Prime95 Small FFT. Version 25.6 or later scales to as many cores as specified.

The latest version of Prime95 that came out a month or two ago (ver 25) will stress all four cores without having to go through the gyrations of running four individual instances of the program. I guess they figured out how to have the single program automatically detect and assign work to each CPU.

Works like a charm on all seven computers I have it now installed on (one quad core, two dual cores, and four single cores). All processors are at 100% load.

You can find it at www.mersenne.org

MisfitSELF

Try IntelBurnTest. Hehe..

zubai and easymoney9,

While Burn Test is useful as a quick preliminary "Easy Button" stability check, it is unsuitable for long term CPU stability testing or thermal testing.

As the author of the Core 2 Quad and Duo Temperature Guide - http://www.tomshardware.com/forum/ [...] ture-guide - here at Tom's, allow me to explain why Prime95 Small FFT's is the standard for stability and thermal testing in the overclocking community.

Prime95 Small FFT's maintains the steady-state 100% workload required for consistent CPU testing, and does not oscillate between high and low workloads, nor does it load all registers with all one's, which produces unrealistically high temperatures @ 115% workload.

You can get a similar explanation from the author of Real Temp, Kevin Glynn, (unclewebb) over at XtremeSystems - http://www.xtremesystems.org/forum [...] 4&page=113 - where there's a 113 page thread detailing the ongoing development of Real Temp, much of which revolves around CPU load testing.

The proof is in observing CPU and Core thermal signatures, which react directly to workload, as shown below using SpeedFan "Charts".


Prime95 Small FFT's:



Prime95 Blend:



Burn Test:




I hope this helps you to understand the differences, and why Prime95 Small FFT's remains the CPU testing standard.

Comp

Hi Rando,

Yes, this is precisely why unclewebb relies exclusively on Prime95 Small FFT's for load testing, as well as the Cool Down test in Real Temp.

I agree 100%. Absolutely brilliant!

Orthos is OK for Dual Cores, but won't automatically thread a Quad, which is what the OP systemlord was having difficulty with, and again brings us back to Prime95.

is that a LN2 pot on top of 1st and 2nd? jk

i hope

^wow. this rocket scientist really knows his ****...

Very nice. That's some serious cash there - I've drooled over the UE stuff before, but never had quite that kind of money to drop on my RC stuff.

^one that could play crysis at like - 10 fps!