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How far can a 4400 go? - Page 3

post #21 of 27
Ah I see you have a CCBWE. I have had a 3700+ Toldeo core version of this stepping and could ALMOST hit 2.9GHz unstable. it required ALOT of voltage, and you have to up the vcore quite alot on those things! The good thing is that the CCBWE steppings generally do not suffer from cold bugs, so running a TEC and water loop setup or phase change shouldn't cause any problems!

The best bit of advice I can give you for a CCBWE is be prepared to lap your IHS and HSF to get decent temperatures, because your going to need low temps for the ammount of vcore you'll need to get a decent performance boost from that chip!

Good luck with the overclocking and a decent overclock to expect on air on that chip, would be something like 2.5GHz 24HRs Orthos Stable running with about 1.45-1.5 Vcore and with temperatures running at 55 degrees C at the most on load.

Hope that helps. jsut my experience! Best way to learn is through experimentation and getting to know your chip!
    
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post #22 of 27
Thread Starter 
Thank for the stepping explanation and suggestions, how do I check loaded temperature? Under what condition is consider "loaded" or "full loaded"?

and the only risk of giving the chip over 1.5v is the overheat problem right?
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post #23 of 27
Quote:
Originally Posted by exe163 View Post
Thank for the stepping explanation and suggestions, how do I check loaded temperature? Under what condition is consider "loaded" or "full loaded"?

and the only risk of giving the chip over 1.5v is the overheat problem right?
In theory a 90nm chip should be able to handle 1.5 Volts just fine. just keep it cool with a decent heatsink and fan. You might consider purchasing a third party cooler such as the Arctic Cooling Freezer 64 Pro, the Tuniq Tower 120, or The highly aclaimed Thermalright Ultra 120 and Ultra 120 extreme edition.

Loaded is considered running CPU intensive applications which utilise 100% of the CPU time. An application for effectively stressing dual core CPUs is called "Orthos" and runs an instance of the Prime95 test on each core (Lucas Leherman Iterations)

The Orthos installation files are available to download and install from this post by BigVal> http://www.overclock.net/downloads/1...v20060420.html

For temperature monitoring on a Dual Core CPU I would recommend using Core Temp Beta 0.94 (0.95 can be a little buggy and restarted my rig a few times when I tryed it out)

You can get more information about Core Temp and also download the installation files from the following location> http://www.thecoolest.zerobrains.com/CoreTemp/

Hope that answers a few of your questions! Any more, don't hesitate to ask!
    
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post #24 of 27
If you're gonna give a chip 1.5V, you'd need really good air cooling plus a low ambient temp or water cooling. 1.5V is pratically THE LIMIT for air cooling.
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post #25 of 27
Thread Starter 
Thanks for the replies again

Ortho gave me the volcano before 5 minutes
First time even gave me instant system lock-up

Code:
ype: Blend - stress CPU and RAM Min: 8 Max: 4096 InPlace: No Mem: 1791 Time: 15
CPU: 2499MHz FSB: 200MHz [199MHz x 12.5 est.]
CPU: 2499MHz FSB: 0MHz [0MHz x 0.0 est.]
1:Starting MBMStarter.dll...
Type: Blend - stress CPU and RAM Min: 8 Max: 4096 InPlace: No Mem: 1791 Time: 15
CPU: 2499MHz FSB: 200MHz [199MHz x 12.5 est.]
CPU: 2499MHz FSB: 0MHz [0MHz x 0.0 est.]
1:Starting MBMStarter.dll...
1:Started MBMStarter.dll: 1
5/25/2007 3:13 AM 1:0/0
1:Temperature: Case: -1.00
1:Temperature: CPU: -1.00
199 x 12.5(written) should be 250 x 10(actual)

and the same line i passed on prime but failed on orthos

P.S. weird thing happening to my computer after i changed BIOS setting:

Sometimes when my computer restart, it refuses to load the BIOS, normally it plays a "doo" sound then the mobo logo screen shows up. I have to turn it off completely and then turn it back on in order to get it to boot properly. Only happen some times.
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post #26 of 27
Ok, one thing to try is lapping that 7700-CU Cooler with a variety of wet and dry papers ranging from 600-2500 grit. Then reseat with AS5. That will lowetr your temperatures a bit. If you temperatures are going above 55 degrees you are best to stop otherwise you'll have a CPU that doesn't work.
    
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post #27 of 27
Thread Starter 
I don't know much about lapping, heard it's rubbing the sand paper against the back of the HSF, but the surface of the HSF is so smooth, if you enlarge it 100 times, you can probably skate on it.

I changed the over voltage option, said to be taking advantage of the 8-phrase vcore or something close, it adds 0.2 to my total vcore voltage. after turning it off, setting my vcore(in BIOS) from 1.2x to 1.41, then I'm able to run ORTHOS fine for an hour getting 46-48C for the cpu.

so the max vcore = 1.5 and temp not over 55C under air cooling?

if so ill keep pushing the chip, thanks again for the feedbacks, they really help my computer and my brain
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