80mm= less performance than 60mm on sk6?

[sendatooli]

i just tried a 80mm. 50cfm fan on the sk6. it runs 2c. hotter than the 60mm. delta(38cfm.). i know people tried this? it seems all the air "spills" over the sides of the sk6.

in my last post i wanted to get the 60mm. delta 50cfm. no one replied with an answer! i wanted to know if at 7v. it is less than 39db(like a sunnon 60mm. or ystech.)? and puts out at least 35cfm?

i dont want to waste any more money on fans untill i know which one fits my needs. quiet, at least 35 cfm 60mm.

i dont really want to junk the sk6. a pal8045 or swiftech will not fit. i need two. so i'd get glaciators if that comes highly reccomended, and will cool BETTER and QUIETER than the sk6.



thank you,
sendatooli.

[The Doors]

Hi sendatooli,
The cooling perfomance of a SK6 with a Delta50Cfm @7v are really the best for me!
I don't know how many Cfm the Delta do at 7v, but for sure it's tolerable and very effective, the temps on the XP1700+@1600Mhz 1.8v are no more than 36-37 degree C with an ambient temp of 19-20 C.

I hope it helps you ;)

[Katana Man]

You should really get a 80mm to 60mm adapter. I know it's not easy on the SK6, but it is possible.

I basically drilled a few extra tiny holes in the top lip of the adapter, and then used some safety wire to snug in down onto the heatsink.

[mEKbOY]

The 80mm fan has a bigger dead spot than a 60mm which doesnt work very well on a sk6 unless your using a adaptor. Btw.. did you ever get your system sorted out?

[sendatooli]

hi mekboy. i got a new mb. after a lot of arguing. even though my mb is legit now and not o/c'd it is still too hot with sunons.
i am not even getting the goldensockets, since they dont let you adjust fsb. the machine is fast enough for now.

but it is a tad too hot right now cuz my room is 75f. and a lot of real hot stuff in the case. cheetahs, etc. it is about 38-39 idle and 46 full load video. it locks up sometimes if it reaches 48.

i like to use it for audio recording. so i need a real quiet machine. so the microphones dont pick up the sound.

mekboy, or anyone else, in your honest opinion is the delta 50cfm at 7v. at least as quiet as a ystech or sunon 60mm? less than 39db. at the fan. i was also wondering are you guys sure the 50cfm at 7v. puts out a LOT more cfm. than the 27cfm sunon?

the delta 38cfm at 8.5 volts puts out less than 27cfm! and its still loud as heck. not good. before i waste money on the 50cfm i want to be sure i dont get the same results!
at 38cfm. the machine always stays under 40c. its way too loud, though.

the whine of these fans is what kills me. does it go away at 7v.?

and on second thought, i wont be getting glaciators to replace the sk6's. my vender doesnt stock them.



thank you,
sendatooli.

[The Doors]

You want a very silent box, so you can try to use the Dynamat adhesive panel into your case to cut off the noise, but for sure the Delta's aren't good for you, even if at 7v, coz are tolerable, but not silent!
Other possible solutions to cool the box are to install some case fans, better a blow hole on the left panel with a duct to give fresh air to the HeatSink Fan.

I hope it helps you ;)

[Katana Man]

The Doors,
Are you just saying that (Dynamat) because it's well known, or do you have first hand experience with it? I've Dynamated one of my cases and was disappointed with the results. Almost no difference, except now my case weighed a ton.

[The Doors]

Onestly I've used into my case the cheaper adhesive tarred panel used into the cars, and now my case weight a ton! but is more silent :) about Dynamat or Noise Killer, well, are for sure much better, many guys have choosed this way for theyr boxes, but personally I know these products only for the High Fidelity Car Audio System, and you must also consider that there are different kind of Dynamat.

[f155mph]

If you want a quiet computer you should use water cooling. I don't think Dynamat will help cause you will still have openings in the case. Wouldn't the Dyanmat also make the case hotter? I got a swiftech 462 with the 68 cfm fan and I got sick of it after a week. My other computer have two delta 38 cfm fans. When they are both on they sound like a vaccuum. So now I am going water cool. Maybe you should look into getting a rheostat to adjust the fan when it get hot.:eh?:

[jbell]

Originally posted by f155mph
If you want a quiet computer you should use water cooling. I don't think Dynamat will help cause you will still have openings in the case. Wouldn't the Dyanmat also make the case hotter? I got a swiftech 462 with the 68 cfm fan and I got sick of it after a week. My other computer have two delta 38 cfm fans. When they are both on they sound like a vaccuum. So now I am going water cool. Maybe you should look into getting a rheostat to adjust the fan when it get hot.:eh?:

I used Dynamat in my case - it added a lot of weight but was worth it - th metal doesn not create teh sound now only the moving air out the openings do - which is a drastic difference!

I have my side panels and top covered with dynamat where I could.... and I am doing a foam/dynamat covering on my front bezel too to isolate the plastic for the steel frame.

[sendatooli]

i got a higher output left side blow hole fan. the old one was 44cfm the new one is 68 cfm. the new one is actually 4db quieter! nicer fan.

my case temp is over 50c. cant help that i got 4 real hot pci cards. a real hot agp card. and 4 real hot drives. plus cd burners etc. the machine is loaded and its gonna be hot. i have the best air cooling i can get. so it is running ok now, at maximum 41c.

the thing that makes me mad is that prime95's doc's state there are no bugs in it. if it crashes your machine isnt right. should i beleive this? its not heat. my system is not o/c'd. still prime 95 crashes sometimes. maybe a hardware conflict? i have 3 pro soundcards. sometimes prime95 runs 5 days, sometimes it runs 5 minuets. without changing anything in my system. 3dmark runs fine.


sendatooli.

[mEKbOY]

41c is very hot. I realize you have tons of drives etc..but what case do you have?

[Reverend]

I have the 50 CFM delta 60mm and it works great the only problem is now Im lookin at investing in Dynamat to get the noise down. I didnt think it would be this loud but it blew me away. Unless you dont care about the noise i would stay away from this fan!!!!!!!!!!!!!!!!!

[nil_esh]

When I had an SK-6, I replaced the ~40cfm 60mm YS-Tech with a ~50cfm 80mm Sunon. And I got a 2C drop in temps on an Athlon 1.4. Though I've been hearing about other people not having success with this. I also tried a 60mm Delta 30 with the same results as the YS-Tech. I was using an Antec SX635 case with pretty mild case-cooling.

Trying a 60-to-80 adapter on my current rig (see sig) I got a raise in temps, though. It all depends on your airflow.

[nil_esh]

btw I wasn't using a 60/80 adapter on my SK-6, I just had the 80mm strapped onto it.

[sendatooli]

41c. actually 40c. under full load. thats very hot? 34-35 idle.
the bottom of the case where the pci cards are has a hot spot of over 50c. its unavoidable these peripherals get real hot. it is a top of the line netserver case on wheels. not a tower, a netserver. 40c. full load doesnt seem hot, mekboy, i remember you saying yours was running hotter than that under load. the case is fine, the items in it just add up. so all considered 40c. under full load doesnt seem to bad or does it?




sendatooli.

[mEKbOY]

After doing some work..my cpu temps are 37c on load and thats heavily overclocked at 1.9volts. Noty a single fan in this case is over 35dba too.

[sendatooli]

i was talking 40c. running prime95. which quits on me. see my other post. i guess this is too hot. that must be why they are quitting. anyways, maybe your 37c. is just very cool? amd says these things can run at like 70c.!

how do you get 37c. with nothing over 35db?



sendatooli.

[Sonny]

The heat at the bottom of your case CAN be fixed by adding an exhaust fan in that particular area so it is not unavoidable. To use a 80mm fan on a 60mm designed HS would require you to "fix" the air column so that there is no dead spot. Adaptors that are designed to go from 80mm-60mm without an understanding on airflow behavior do not work efficiently & can even raise temps. Why not mod the case to get airflow were you need it & use a Velocity Stack (http://forums.overclockers.ws/vb/showthread.php?threadid=52995) type duct to pull cool air from the outside directly onto your HS sans the Fan. Prime95 errors can be caused by something else beside CPU heat problems.

[mEKbOY]

Originally posted by sendatooli
i was talking 40c. running prime95. which quits on me. see my other post. i guess this is too hot. that must be why they are quitting. anyways, maybe your 37c. is just very cool? amd says these things can run at like 70c.!

how do you get 37c. with nothing over 35db?



sendatooli.
Pretty simple and kinda of ghetto to. I am using to SK6 heatsinks which is where i will give most of the credit to with 2 50cfm delta's running at 7v. I have to sunon 120mm 69cfm 35dba fans blowing over the side of my case. One over the cpu's and one over the video card. Very quiet and effective. As soon as i get a bettern case i will on getting things even better but for right now it aint that bad.

[sendatooli]

actually i have ducts running from 92mm fans outside tapered down to the 60mm fans that are on the sk'6s. and i do have air properly moving in and out of the case. i think 40c. max on the cpu's is the best i will do without water or other exotic cooling. lets not get carried away here! this machine is not overclocked. is 40c. really in the danger zone? according to amd it is no where near it. prime95 is quitting for other reasons, which i am currently troubleshooting. i am sure my temp. is not what is making prime95 quit.



as for mekboy, you have 2 35 db fans. and two 50cfm delta's at 7v. plus at least one more fan in the psu. am i right? that would put the entire setup at quite a bit more than 35db! the delta's alone are way more than 35db, even at 7v. trust me i tried them already. like 3 days ago, actually i decided not to get them for 7v. usage. so what would you estimate your machine is really at decibel wise, from one foot in front of the case? 42-45db?

i am not doubting you, i would just really like to know.
put it this way, if i stood 15 feet away and whispered "hey mekboy" and you were 2 feet from your machine, would you hear me?

my problem as i stated before, is i use this machine for audio recording. as it is, a condenser mic can pick up a whisper at 50 yards away! thats what i am dealing with. i know water is best. but it is not even overclocked. if it is running at 40c. max now at about 40db. in front of the case, quieter fans certainly wont help.

i am going to look into rethinking my airflow scheme.



happy holidays,
sendatooli.