Best Panaflo for an SP-97, 80mm or 92mm?

[FrailBlazer]

Searched through the board and didn't find a topic on this. I will be making the SP-97 purchase whenever more sites like newegg or ZipZoomFly get em would like to know what fan is best for the heatsink? I've seen some things about the 92mm having a big deadspot but the people reporting said deadspot have been pretty vague. For instance, does the deadspot mean less air will come in contact with the heatsink? Now the 80mm's have less air flow but since they're smaller than the 92's, I assume more air is hitting the sink. Am I correct for thinking this?

Keep in mind that I plan to OC up to atleast 217mhz when I get these sticks of Hyperx PC3000's that I just ordered and would like the best CPU cooling available. Thanks

btw, since this is an open topic, does anyone know of a good heatsink for the nf7 southbridge?

 

[dalilman52]

well first of all, the dead-spot is just the spot where the fan doesnt blow any air, the little circle in the middle of the fan blades, so logically, it would get bigger and bigger as the fan size goes up

if u want a quiet 92mm fan, get the eneramx adjustable 92 mm, i hear it is better at cooling than the high-flow 92mm panaflo

and as for the heatsink for the NB, the vantec chipset line seems to be pretty good, im not sure what the highest model is, but if u researched a little, u would find out

 

[Blue4Life]

I've wondered this as well. I'm using a medium speed panaflo 92mm on my sp94. It's holding 31C idle and 47C load on my P4 (so far as i can tell). I'm tempted to swap to an 80mm to see if I can notice any improvement, or peryaps using a funnel or fan adapter.

 

[Redstone]

I'm tempted to swap to an 80mm to see if I can notice any improvement, or peryaps using a funnel or fan adapter.

I am using a Panaflo 80mm L1A in the winter and a M1A in the summer and have never seen the temp get over 41c on my overclocked P4. Idle is 30c. If your local dealer sells Panaflo's like mine does just get both and compare temps.

 

[cobray]

I have a similar setup to yours. I have the SLK-947U with an 80mm Thermaltake Smart Fan 2 and my CPU temp has never hit over 42 degrees. (My ambient temperature is usually around 27 degrees). I run a Zalman passive heatsink on my northbridge, and a 20x20x10mm alpha heatsink on the southbridge. There is enough "overflow" from the CPU fan that it cools both the NB and hits the MB Temperature probe. My MB temp never goes over 25 degrees.

I use AS Ceramique for the CPU and NB, and AS Adhesive for the SB.

My CPU core voltage is 1.7V and FSB is 210x11. I would recommend water cooling if you plan on going over 1.75V. If your saying you want to do minimul 217x11 then air-cooling is probably not for you. I can do 220x11 at 1.85V but I dont like running that high a Vcore on air.

Of course, your mileage may vary. If your gonna stay on air, I would follow Redstone's advice and just get both fans and compare.

 

[FrailBlazer]

More confusion lol. Have half saying 80mm, half saying 92mm. Searching for that 92mm adjustable Enermax I found myself at the heatsinkfactory site. The CFM to dBA ratio on the 92mm highest speed (2500 RPM with 52.25 CFM @ 32.8 dBA) seems better than the 80mm highest speed *3000 RPM with 39.8 CFM @ 32.6 dBA). But then there's that whole 'deadspot' thing.

Either way, like dalilman said the Enermax fan seems to have a better air flow/noise ratio than both the Panaflo and Smart Fan 2.

And about the OC to 220: I think I can make it on air cooling. As long as my temps to past 55c full load I should be safe. That's why I'm trying to find the best fan possible(while maintaining a minimal noise level since my case will be open until I get a new one) to go along with that SP-97 which is apparently the best current heatsink .

 

[Redstone]

I had two adjustable enermax fans that were very quiet at the lowest settings. However they both became loud after about 8 months of use.

 

[archilochus]

I currently run the Panaflo U1A 92mm fan on my SP-94 HS.My temps on the CPU depend on ambient temps,to stay at a chilly 32° C, Folding. Ambient 23° C,,The fan is controlled using a rheostat ,via PSU. This fan has no rpm capability that I'm aware of.Works fine for me.If you want one you can get it at www.digi-key.com <^> Enter Item# P9760-ND ! These are choice fans putting out 68.80 CFM @ 3450 RPM / 43 dBA...THE FANMAN

Via <^> blkgti

 

[blkgti]

More confusion lol. Have half saying 80mm, half saying 92mm.

I'm sorry, but I don't see the confusion. There are a few folks who've responded that have never compared 80mm Panaflo's to 92mm Panaflo's, so their contributions should be discounted immediately. One chap suggested that you buy both and decide for yourself, and I totally agree with that notion.

Searching for that 92mm adjustable Enermax I found myself at the heatsinkfactory site. The CFM to dBA ratio on the 92mm highest speed (2500 RPM with 52.25 CFM @ 32.8 dBA) seems better than the 80mm highest speed *3000 RPM with 39.8 CFM @ 32.6 dBA). But then there's that whole 'deadspot' thing.

Buying fans based on their specs will only lead you to a product with ambitious claims. FWIW, I have 80mm U1A, H1A, M1A, L1A and 92MM U1A, and H1A on my desk right now, as I've been testing them with the SP-97. At comparable CFM ratings, the 80mm fans cool better, albeit at higher RPM (ie. noise level). Ultimately, though, the 92mm U1A cools best.

That's why I'm trying to find the best fan possible(while maintaining a minimal noise level since my case will be open until I get a new one) to go along with that SP-97 which is apparently the best current heatsink .

If you're hoping for a minimal noise level, you can forget about using any high-output fan including Panflo.

 

[kikkler]

is there any 92mm fan which is neither 55 nor 35 dBA ? something like 41-43 dBA would be a happy medium, only i cant seem to find one

 

[rxc]

I went with the 92mm Panaflo M1A Fan (BX) w/ RPM Sensor on my SP-97 because it moves a lot of air with minimal noise. In fact its quieter than my 80mm case fans. However, looking at the 92mm center and 80mm center, the sizes seem almost identical so I would go 92mm for lower noise.

Current Temps:

Idle 16C
Load 25C
Case 13C

 

[FrailBlazer]

I think I'm going to go with a 92mm Enermax, IF I can find the one with that's advertised on their website has having 64cfm/34dBA. I found one at SVC's site(http://www.svc.com/en92vasphipe1.html) but the specs on a picture of the box are different than the ones in SVC's info. On the box is the same info everyone else has a maximum of 2500RPM, which is 52.3CFM/ 32.8dBA version. Their specs have the 64.15CFM/34.3dBA version. Gonna have to call tomorrow to see which one they actually have.

And blkgti, I searched but couldn't find a 92mm U1A. Did see some 120mm versions. Even on a forum I found from my yahoo search, one person said the 92mm version was hard to find. He got his from ebay(which doesn't have one right now).


EDIT: Ok, thanks to another thread(http://www.ocforums.com/showthread.php?s=&threadid=257123) on this board, I got a site that sells the 92mm U1A. The specs are 68CFM/43dBA (kikkler, you might be interested). When I get in contact with their customer service, which should be in about an hour since they have a strange service time (from Sunday at 6:00pm until Saturday at 6:00am CT), I'll see how much their restocking fee is, just incase I have to return the fan if it's too loud.

 

[Redstone]

Current Temps:
Idle 16C
Load 25C
Case 13C

Your case temps are 55 degrees Fahrenheit? What do you live in a refrigerator or is your computer outside? I could never keep the inside my home that cold. You must be part eskimo or very warm blooded.

 

[rxc]

I live in the Bay Area, CA and it's winter here. The computer is in the basement where the temp is usually cool anyways. And this new SP-97 (a real improvement over the stock AMD heatsink) coupled with some good airflow keeps everything nice and cool

 

[FrailBlazer]

rxc, question, are you using a 3 pin or 4 pin connector with your panaflo?

 

[rxc]

3 pin

 

[FrailBlazer]

3 pin

k thanks. I might get that since it has more CFM than the Enermax. Or I might get both and use which ever one is less powerful as a casefan.

 

[blkgti]

And blkgti, I searched but couldn't find a 92mm U1A. Did see some 120mm versions. Even on a forum I found from my yahoo search, one person said the 92mm version was hard to find. He got his from ebay(which doesn't have one right now).


EDIT: Ok, thanks to another thread(http://www.ocforums.com/showthread.php?s=&threadid=257123) on this board, I got a site that sells the 92mm U1A. The specs are 68CFM/43dBA (kikkler, you might be interested). When I get in contact with their customer service, which should be in about an hour since they have a strange service time (from Sunday at 6:00pm until Saturday at 6:00am CT), I'll see how much their restocking fee is, just incase I have to return the fan if it's too loud.

If you look at the message that preceded my first post in this thread, you'll see that Archilochus told you where to buy a 92mm U1A.

 

[FrailBlazer]

If you look at the message that preceded my first post in this thread, you'll see that Archilochus told you where to buy a 92mm U1A.

oops, didn't even see that. He's the one I got it from in that other thread too.