120mm to 80mm adaptor on a PAL8045. success!

[rjiemamam]

ok. here is what i did. i found an AOL cd case, the plastic black ones. i measured out the holes for both the 80mm and 120mm, used a drill and made the appropriate holes according to the orientation of the 120mm fan and holes for where the 80mms would be. i measured it out, used a cutter and cut out the measurements. screw the adaptor on the HS, and the 120mm fan on the adaptor.

i've noticed a 3-4C difference on my tbird 1.33, from 44-45C under load to 40-41C load. room temp is around 27C, AS3 not settle in yet. hopefully that'll shave off another 1 or 2 degree. from my 47cfm 38dba YS Tech 80mm fan to a 85cfm 34dba Delta 120mmX38mm fan. the noise level is just the same, i might get a panaflo L1A 120mm fan later. i had a little mishap installing the adaptor. on the long screw where you would screw in the HS, i didnt know i had a capacitor underneath it, so i kiept screwing, turned my pc on, it wouldnt boot. i had to replace it with a new capacitor. thanks for the help guys over at the hardware discussion forum. i got some pics to show. hopefully it'll help you understand what i did more.

 

[rjiemamam]

here is the original CD case compared with the adaptor.

 

[rjiemamam]

here is the adaptor with the 120mm fan.

 

[rjiemamam]

here is the adaptor installed on the PAL8045. noticed i did not screw the top right of the adaptor in. that is where my old cap is. my new cap is extended with some wires next to the ram slots.

 

[rjiemamam]

fully installed.

 

[rjiemamam]

screw, washer, nut, i used for attaching the fan into the adaptor.

 

[rjiemamam]

i might do a fan shoud focusing the suckage of fan to the HS only. a really dumb thing is that fresh air is hard to get into the HS because of where the ram is, the stick of ram is less than a cm next to the HS. right where air would flow in the HS it blocks.

 

[KingB]

Nice! Maybe you could draw up a template so others can down load and build. Maybe you could even charge a few bucks and make a few dollars.

Keep us posted on the result with a new fan.

BTW How close is the fan to the HS? I suppose you could adjust this with different length screws. Wonder what temp diferences could be had with different distances from the HS?

 

[rjiemamam]

i am going to do another adaptor this coming weekend for my other computer. i'll draw up something then.

 

[Szech]

They sell a funnel-looking 120 to 80mm adapter off plycon

 

[Lou Natic]

Finally, I've been looking for something like that for awhile now...hmm...

 

[ac3wooddog]

nice

nice

 

[rjiemamam]

i've read a bit of reviews that the funnel type is no good for 80 to 60 mm fans. it didnt help much to lower the temp because the adaptor seperated the fan and the HS. thus loosing the fan's effectiveness.

 

[f155mph]

i've read a bit of reviews that the funnel type is no good for 80 to 60 mm fans. it didnt help much to lower the temp because the adaptor seperated the fan and the HS. thus loosing the fan's effectiveness.

Are you sure about that? I think the funnel will help because it will channel all the air to the hsf. When you put the fan directly on top of the hsf the dead spot in the middle of the fan does not previde any air, so the center of the hsf didn't get the full effect of the fan. With the funnel and using a bigger fan the funnel will cancel that effect. Anyone have a review between the adapter plate and the funnel?

 

[rednut99]

Well I built a 92mm fan to a 60mm heatsink with one of those 92-60mm adaptors. And to say the least it didn't do squat. I booted up my comp with my hybrid adaption and watched as my idle temp went from 50 degrees C through 60 and on to 70 before levelling off at 72. It seemed to be blowing air all over the place. I had a 60mm globalwin fan that was noisey but only pumped about 30cfm. It idled at 53 then.

My 92 fan was rated at 60cfm. I certainly couldn't feel much air comming out the bottom of the adaptor. But with out the adaptor it went fine.

I think there is a airodynamic floor with them, But I've also heard of great success stories with them.

 

[f155mph]

Welcome to the Forum!!!

Your idle temp is 53????? That is way too hot!!! What hsf are you using? You might want to get it fix before you kill your XP.

 

[rednut99]

My idle temp is at its all time lowest - it used to idle at 58. It maxed out at 63 too. That was with a Globalwin FQP68 HSF on.

Now I have a JustCooler P8000 and cold induction and it idles at 53 and peaks around 58. I've can't understand how anyone can get the XP to idle at 47 or so. Thats so cool. Please tell me how?

This is my case before my JustCooler P8000
This is my case with the JustCooler P8000 and cold induction

 

[Sonny]

Adaptors = Flat ones like what was originally posted here are the easiest but it's also the worst performing. Air does not get to flow thru the HS properly because the the larger deadspot of the bigger fan even if you use it to pull the air thru the HS like Alpha Novatech intended for PAL8045.

Funnels = Back pressure issues will force you to go for a more powerful, higher CFM, fan just so that they cool properly. Do a search in the Cooling Forums about funnels & you will see more people who have had terrible experiences with them compared to their original configuration.

Ducts = You will need to do some case modding for this but increased cooling performance is your prize if you do it right.

Velocity Stacks = A combination of a Duct & a Funnel but with consideration to airflow restrictions. It has no back pressure & cleans up the air from axial fans. Another search in the Cooling Forum is in order.