zalman flower and xp2500

mr pink · Post by **mr pink** » Mon Aug 02, 2004 5:55 am

Has anyone run a zalman 3100 flower cooler in silent mode on a barton core 2500? I am using one now on a 1700 palamino and am thinking of upgrading, but dont want to run the fan at normal speed. The zalman site says no, but they may be overcautious. I'd hate to buy the 2500 and not be able to run the fan slowly! It's loud at full speed! Thanks!!

Post by **Rusty075** » Mon Aug 02, 2004 6:30 am

The 2500 Barton puts out about 10% more heat than your 1700 Paly. (68.3 watts, compared to 64) So given the same cooling, you could expect your temps to rise by about the same margin.

Of course if you went to a mobile 2500, or even undervolted the desktop 2500, your temps might actually go down.

Even dropping the voltage 0.05 volts, from 1.65 to 1.60 will make the 2500 run as "cool" as the 1700.

mr pink · Post by **mr pink** » Mon Aug 02, 2004 6:42 am

thanks . That helped - if I get it and she's too hot I can undervolt it until I get a zalman 7000 or something like that.

Post by **Rusty075** » Mon Aug 02, 2004 7:05 am

I would undervolt either way. Most bartons will happily run at voltages 0.10 to 0.25 below their default while at stock speeds. It's free cooling, both for the CPU and PSU, while costing you nothing in performance.

mr pink · Post by **mr pink** » Tue Aug 03, 2004 7:04 am

update:

I installed a 2500 barton this morning and it's working great with the speed limiter on the zalman. My temps may have actually gone down a bit.

at 166mhz and stock voltages.

Tomorrow I may try oc'ing.

I've got a msi kt4v and 2 pcs twin-mos pc2700 256mb if anyone wqants to give me any tips.

Thanks

also in system:

ati tv wonder pro
turtle beach santa cruz
2 opticals
1 spinpoint hdd.

burcakb · Post by **burcakb** » Wed Aug 04, 2004 5:01 am

Yep, your Twinmos mems will probably crash the moment you try going past 166 MHz.

Try to go for silence instead of unused performance (unless you're folding for SPCR

) Undervolt to 1.5V (Bartons easily do that and even less). That'll drop your power output to 58W. So you can reduce your fan speed even more - maybe. I run my Zalman 7000 at 700 rpm - it's dead quiet.

Michael_qrt · Post by **Michael_qrt** » Wed Aug 04, 2004 5:14 am

As Burcakb suggested its unlikely that your memory will allow for much overclocking. If your motherboard allows you to run a memory divider then you may be able to push the CPU higher though.

In reality though if you don't tax your computer too hard all the time then you may have a better time with your computer by leaving it at stock and undervolting to reduce the heat. My 2500+ will run stably at 1.45V stock speeds and at 1.40V the only thing I can get to crash is prime95 or folding. Anyway I run mine at 1.50V just to give a buffer incase the voltage actually delivered fluctuates. Having said that my 2500+ is an ordinary overclocker, it needs 1.85V to do 2.2GHz and be totally stable, so its likely that most 2500+ cpus will take a decent underclock.

Actually I tend to run my machine at 2.2GHz most of the time these days as I've gotten into folding for team SPCR and want to put all the firepower I can muster into it.

POLIST8 · Post by **POLIST8** » Wed Aug 04, 2004 12:24 pm

I wonder how well it would cool without the fan on at all.......hm................

Someone try it.

mr pink · Post by **mr pink** » Wed Aug 04, 2004 1:07 pm

Thanks for the advice. I've learned something already. The lowest vcore setting in my bios is 1.625 though. I guess it's stock speeds for me! It's a farily quiet system and I think ill try to keep it that way. I think the loudest thing is this stock sonata ps. I've got it in a 3700bqe along with the standard exhaust fan.

POLIST8 · Post by **POLIST8** » Wed Aug 04, 2004 1:09 pm

Mr. Pink? Why do I have to be Mr. Pink?

Well, good luck!