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View Full Version : Specs for the FX Flow fan


Badash
04-09-03, 11:39 PM
Does anyone know the cfm and rpm of the fx flow fan on the reference design FX 5800 Ultra? All I ever saw was a reviewer say "it's loud" . I want to know how much air it moves.
Thanks

-=DVS=-
04-10-03, 03:03 AM
hmm i think it moves some 70 CFM , it goes at 8000+ RPM and its 55+ DPS loud :D

GlowStick
04-10-03, 01:07 PM
Originally posted by -=DVS=-
hmm i think it moves some 70 CFM , it goes at 8000+ RPM and its 55+ DPS loud :D

Not quite, i think it moves like 5cfm's? at 7000rpm.

Its not a standard 'Fan' its the type thats a big cylander with fins and its kina weird, its really low flow though, thats why other companys with 'traditonal' fans work so much better

-=DVS=-
04-11-03, 03:01 AM
Originally posted by GlowStick
Not quite, i think it moves like 5cfm's? at 7000rpm.

Its not a standard 'Fan' its the type thats a big cylander with fins and its kina weird, its really low flow though, thats why other companys with 'traditonal' fans work so much better

Makes you wonder why Nvidia chose weird, not efficient cooler design :rolleyes:
Anyway 5cfm at 7000rpm is realy low but loud :wtf:

GlowStick
04-11-03, 11:29 AM
Originally posted by -=DVS=-
Makes you wonder why Nvidia chose weird, not efficient cooler design :rolleyes:
Anyway 5cfm at 7000rpm is realy low but loud :wtf:

yeah, thats why if i had a gffx id replace the fan with a big slow running fan, probly get better cooling with no noise, just take up a bit more room.

Badash
04-11-03, 11:54 AM
I don't believe the 5cfm 7k rpm theory. That's ridiculous I've never heard of a stupid fan like that. I used the pny fx 5800 ultra and I could feel the air blowing out the back pretty good. Which means 5cfm it is not, yoda.

GlowStick
04-11-03, 12:50 PM
Originally posted by Badash
I don't believe the 5cfm 7k rpm theory. That's ridiculous I've never heard of a stupid fan like that. I used the pny fx 5800 ultra and I could feel the air blowing out the back pretty good. Which means 5cfm it is not, yoda.

I read the specs off a review, get the model number off the ys tech fan, its on their site.

Chalnoth
04-11-03, 02:18 PM
Well, then, care to post a link?

5 cfm just sounds absolutely ludicrous. And if one poster here can feel the air coming out, then I'm certain that you're wrong.

dropper
04-11-03, 04:51 PM
Something I was contemplating, was yanking the fan out completely (but leaving the chamber) and creating a ducted fan on the outside of the case, say with a 60 or 80 mm fan running all of the time.

Or maybe I will just wait for the Bit-Tech water block.

Keith

GlowStick
04-11-03, 05:31 PM
Originally posted by dropper
Something I was contemplating, was yanking the fan out completely (but leaving the chamber) and creating a ducted fan on the outside of the case, say with a 60 or 80 mm fan running all of the time.

Or maybe I will just wait for the Bit-Tech water block.

Keith

whoa, thats a good idea, just force air into the U shaped duct, that would be very cool to see.

Badash
04-14-03, 10:17 PM
Your about right glowstick. I didn't look up the specs for the reference fan but I looked up the specs for the Gainward FX 5800 Ultra. 5600 RPM 6.2 CFM 44.6 DB

Chalnoth
04-15-03, 12:10 AM
Originally posted by Badash
Your about right glowstick. I didn't look up the specs for the reference fan but I looked up the specs for the Gainward FX 5800 Ultra. 5600 RPM 6.2 CFM 44.6 DB
That sounds more like the "quiet operation" mode.

gokickrocks
04-15-03, 01:00 AM
i think the 6 CFM is correct, do you really believe 44dB is "quiet operation"?

Chalnoth
04-15-03, 02:59 AM
I meant when looking at the air throughput.

As for how quiet it is, that is lower noise than the typical GeForce FX fan.