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View Full Version : Prommie fans CFM? What is it?



kup
04-29-2003, 04:02 PM
Just need to know what CFM they are as I'm thinking of swapping them over to some better ones., I was thinking of trying 2x120mm 190CFM Deltas! What do you think? :D :slobber:

ellsworth
04-29-2003, 04:14 PM
i dont think it would make THAT big a difference...you might drop a degree or two, but definately not worth worth the extra noise. those fans are LOUD. i cant even imagine 2 of them right next to eachother!

if you do the fan swap i will call you bleeding ears mcgee. :D

Tweaked!
04-29-2003, 04:34 PM
Actually I've seen that recommended several times for those units. I know Hardass mentioned that he had changed out his stock fans for better ones. He should eventually come across this and give you a reply. Other than that, Bowman or TheDude might have some input on it for ya:cool:

ellsworth
04-29-2003, 04:43 PM
oh yea im sure bigger fans would help out, but i was talking about how those deltas would be so loud that it would defeat the whole quietness benefit of the prommie. im sure some quieter 84-108cfmish fans would be great added performace without the 6,000dba side effect of delta fans.

TheDude
04-29-2003, 04:46 PM
I haven't swapped them, but I tried adding a fan in front bottom of case blowing in on radiator...only made 1c cooler temps. On my old classic vapo..it made about 3c better.

CodeRed
04-29-2003, 04:56 PM
The prom uses the Sunnon KDE1212PMS3-6A fans. They are rated at 83 CFM (34 dBA).

I hope you have earmuffs for those deltas :)

Hardass
04-29-2003, 04:59 PM
I swapped fans out in my Quiet Power not the Prom. I also mounted a 120mm in front of rad for no diff in temp. I wouldnt bother.:)

kup
04-29-2003, 05:16 PM
Ok, cheers people! I'm going to open up the front of the prommie unit to get the best airflow to the fan as those vents are pathetic!

I may swap the fans for some YS Tech 120mm 120cfm ones, as I can get 'em locally with the grills! Would a fan on the front AND the back of the Rad help at all?

TheDude
04-29-2003, 05:36 PM
Originally posted by kup
Ok, cheers people! I'm going to open up the front of the prommie unit to get the best airflow to the fan as those vents are pathetic!

I may swap the fans for some YS Tech 120mm 120cfm ones, as I can get 'em locally with the grills! Would a fan on the front AND the back of the Rad help at all?

Good question...I didn't think of that. It's worth a try...let us know if it does.:D

kup
04-29-2003, 06:07 PM
Will do! I'll go buy them tomorrow and fit them, but I don't have the tools to cut the hole in the front at the moment, so I'll be leaving the front off! :(

Also, what about dual fans mounted on each other on the back(inside case) of the Rad?

I'm so determined to get this thing to cool better without R404'ing it!

Thinking about the Delta's, surely when the ChipController slows the stock fans down it would have the same effect on the delta's, so could you just reprogram the controller to slow them down to a level that doesn't make your ears bleed?

TheDude
04-29-2003, 06:24 PM
Having just removed about 5 machines from my computer room...I find the quiet kind of spooky. I have become so used to the noise that it doesn't bother me at all. I have a Tornado as my intake fan on the prommie. It is adjustable thru my TrueControl PSU, so if I get a phone call, I just reach over and turn it down.:D

kup
04-29-2003, 06:35 PM
TheDude,

What voltage are you using on the 1700+ for 2.78GHz and what temps are you getting at that?

TheDude
04-29-2003, 06:43 PM
1.85 vcore Prommie display shows -31c bios shows 9c on cpu. I finally found a good chip...my first.:D

kup
04-29-2003, 06:51 PM
Xcellent! My 1700+ will be here in a few days and my RMA'd 1.2 should be too! And then it's time to w/c the n/b, pelt my Ti4600 and try to match my 2400+ Prommie speed of 2.83GHz 2.15v! =P

Shame I ended up giving it ~2.45v before the nf7 bios under-reading was fixed, I vcore modded to stop undervolting and only realised when the new bios came out! Suddenly my 2.2v jumped to ~2.45v and I had an answer to why my chip was dying!

I'm so glad these chips really don't take so much to power them! Nothing better than hitting insane speeds with only a tiny bit more voltage!