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View Full Version : Came across an interesting fan...



BugeyedEarl
11-15-2008, 01:37 AM
I was hunting around for fans that provided both airflow and silence...and a friend of mine recommended me this Xfan series.

I've tried their 25mm thickness product a bit while ago and remember not being impressed...but after checking out their new product line-up I came across this.
XFan (http://www.x-fan.jp/products/120.html)

Check out the RDL1238S, the bottom most product. For those of us english speakers, here's the translated stats.

JAN Code: 4562198670497 (Product ID I think)
Form Factor: 120x120x38mm
Sleeve Bearing
Running Speed: 2000rpm
Noise: 29.3dB(A)
Airflow: 94.73CFM Voltage/Power: DC12V 0.25A
Lead cable length450mm(Twin Cable) 3pin connector and pulse sensor built in
Ribless Frame

Since only thing I have are paper stats, and me being a rather noob at reading stats, could anyone who happen to be more knowledgable give in-depth analysis? (If there's a user test, I'm all ears...and eyes).

Cutless009
11-15-2008, 07:30 AM
I'd rather have my scythe ultra kaze high-speeds than those personally, but thats just me.

Eddie3dfx
11-15-2008, 07:41 AM
I'm still waiting for a nice looking 38mm fan.
28db and 98 cfm.. wow maybe tomorrow I'll be so lucky to find a rich playmate who is willing to be my sugar momma. :yepp:

Cutless009
11-15-2008, 08:18 AM
I think the Scythe Ultra Kaze's are sexy personally, I mean how is this not sexy?

http://i188.photobucket.com/albums/z6/Cutless1/Project%20Formal%20Black/IMG_3216.jpg

cegras
11-15-2008, 09:36 AM
That blade structure looks similar to a certain Delta fan .. but overall it looks like no slouch. I wouldn't believe the specs though.

STEvil
11-15-2008, 11:18 AM
rebadged NMB's I think.

MpG
11-15-2008, 12:03 PM
Yeah, you can see the "(NMB)" after some of the characters, and they've got the distinctive funnel opening. They're packing 7 blades instead of 5, though. Wonder what that does to the final result. The others have a Delta look to them. Some of the specs are in line with what you see on YL's and Scythe's, but the faster fans are definitely understating their sound levels.

hotdun
11-15-2008, 01:20 PM
....a friend of mine recommended me this Xfan series.......

Check out the RDL1238S, the bottom most product. For those of us english speakers, here's the translated stats.

JAN Code: 4562198670497 (Product ID I think)
Form Factor: 120x120x38mm
Sleeve Bearing
Running Speed: 2000rpm
Noise: 29.3dB(A)
Airflow: 94.73CFM Voltage/Power: DC12V 0.25A
Lead cable length450mm(Twin Cable) 3pin connector and pulse sensor built in
Ribless Frame


I'm gonna guarantee that those specs are BS.
2000rpm, 97CFM with only 23 db?

geoffsthaboss
11-15-2008, 01:23 PM
I'm gonna guarantee that those specs are BS.
2000rpm, 97CFM with only 23 db?
right there in your quote it says 29.3...

Waterlogged
11-15-2008, 01:32 PM
right there in your quote it says 29.3...

...even so, I'd still put the dB somewhere in high 30's if not low to mid 40's.

Vapor
11-15-2008, 01:38 PM
Those specs are pretty unrealistic for 2000RPM. Xinruilian designs/manufactures most of their own fans. The ones with (NMB) at the end say they're using a 2-ball bearing seemingly designed by NMB. This fan uses a sleeve bearing.

BugeyedEarl
11-15-2008, 01:42 PM
Well, I was looking at other reference of xinruilian fans and although their 'other' (CFM/db) stats seem alright, their air pressure look like crap. If that's the case with the above fan, that pretty much renders it useless for watercooling:/ Bummer.

T_Flight
11-15-2008, 02:09 PM
30 is ambient sound level. So these things are running completely inaudible at 2000 rpms? Something doesn't seem right there.

Lagaaja
11-16-2008, 08:42 AM
There is not even a single fan (for computer use) that has realistic dB specs. RPM and CFM are the only readings that matter (and the wattage in some situations). As long as the manufacters don't tell what were the background noise and the distance where the readings have be taken (plus numerous other factors) the dB is utterly irrelevant.

Jimmer411
11-16-2008, 02:51 PM
I was hunting around for fans that provided both airflow and silence... aYate Loon



Once I tried one of this I didnt bother looking any further.

aspire.comptech
11-16-2008, 02:58 PM
RPM and CFM are the only readings that matter (and the wattage in some situations). the dB is utterly irrelevant.

Umm static pressure means more to us water coolers than just about anything else.

It's all about the pressure to push the air through radiators.

CFM and RPM are all secondary.

dB is not irrelevant at all. It matters to me how loud my fans are as I sleep in the same room as my computer...

j.almonte
11-16-2008, 06:07 PM
Umm static pressure means more to us water coolers than just about anything else.

It's all about the pressure to push the air through radiators.

CFM and RPM are all secondary.

dB is not irrelevant at all. It matters to me how loud my fans are as I sleep in the same room as my computer...


+1 that

FrostyPanda
11-16-2008, 06:13 PM
Umm static pressure means more to us water coolers than just about anything else.

It's all about the pressure to push the air through radiators.

CFM and RPM are all secondary.

dB is not irrelevant at all. It matters to me how loud my fans are as I sleep in the same room as my computer...

but you can shut it down when you sleep....... Personally I think deltas are the way to go

rocket733
11-16-2008, 06:30 PM
Umm static pressure means more to us water coolers than just about anything else.

It's all about the pressure to push the air through radiators.

CFM and RPM are all secondary.

dB is not irrelevant at all. It matters to me how loud my fans are as I sleep in the same room as my computer...

He meant that the manufacturer's information for db specifications aren't relevant because they are not accurate, not because it does not matter how loud the fans are.

JOCKTHEGLIDE
11-17-2008, 12:19 AM
ultra kaze for the win........