what 120mm fan for prescott 3.2 with xp120/si120

jlee562 · Post by **jlee562** » Tue Nov 01, 2005 3:17 am

I was wondering what 120mm fan would be good to quietly cool an intel p4 3.2 ghz prescott cpu using a xp 120/si 120 heatsink. I'm currently using the stock heatsink+fan and am getting idle temps of 55-57 and load temps of 69+ with the mb sensor reading an internal case temp of 39-40.

Post by **Ralf Hutter** » Tue Nov 01, 2005 7:06 am

Well, depending if your Prescott is a DO or CO stepping, a Nexus Real Silent would probably work great.

I'm running a 3.4GHz Northwood with an Si-120 and a 120mm Nexus Real Silent fan. Running the Nexus at 6V provides plenty of cooling for this ~100W CPU.

According to the same chart, a DO stepping 3.2 Prescott puts out about the same amount of heat, so that 6V Nexus should work just fine. An earlier CO stepping puts out around 115W so the same fan may well work, but at a somewhat higher speed. Maybe one of those OEM Yate Loons with the slightly higher rpms would be a good choice.

Aris · Post by **Aris** » Tue Nov 01, 2005 10:07 am

pretty much everyone on this forum will tell you nexus. their one of the quietest fans around, their cheep, they undervolt well, and you can find them pretty much everywhere.

dfrost · Post by **dfrost** » Wed Nov 02, 2005 4:24 pm

OK, I'll be the anti-Nexus heretic, sort of.

I have lower temps on hot components around the CPU with the Papst 4412F/2GL on the XP-120 at 7-11V (through a Fanmate to the temperature-variable CPU fan header) then I did with the Nexus. CPU temps were OK with either fan, but PWM temp under load with my Northwoods CPU (D1 stepping) is about 4-6C lower with the Papst. Also, it works better in suck mode for cooling those hot components on this particular board. Note: this board scatters the PWM bits around two sides of the CPU socket, so my results may be board-unique.

OTOH, the Nexus is wonderful as a quiet exhaust fan at 8-12V using auto temp control capabilities from the northbridge fan header on the Abit motherboard.

stromgald · Post by **stromgald** » Wed Nov 02, 2005 4:40 pm

Everyone will tell you Nexus fans are quiet, but the only reason they're so quiet at 12V is that they don't move much air at all. This is the main reason I prefer Papst and Yate Loon fans. They move more air if you need it and are about as quiet as a Nexus when lowered to under 7V.

Sizzle · Post by **Sizzle** » Thu Nov 03, 2005 9:32 am

I think the cost of the Papst takes them out for most people. They have the BEST airflow to noise ratio. Yate Loons have the best price. Nexus falls somewhere in-between I would guess. At this point, the Nexus is the easiest of the three to obtain.

If it were not so darn heavy, I'd say the Coolermaster aluminum 120mm is the way to go. I have two as case fans and they are incredible.

Felger Carbon · Post by **Felger Carbon** » Thu Dec 15, 2005 6:57 pm

[quote="Sizzle"]I think the cost of the Papst takes them out for most people. They have the BEST airflow to noise ratio. Yate Loons have the best price. Nexus falls somewhere in-between I would guess. At this point, the Nexus is the easiest of the three to obtain.

First, the Nexus 120mm _is_ a Yate Loon configured for 1000RPM. While the Papst is available at quietPC.com, it costs $27. If you want quiet with lots of CFM, I strongly recommend the Sumbeamtech 120mm LED fan, rated at 48CFM/1200RPM. It really does push a lot of air, more at 1200 than the Yate Loon at 1400. It weighs only 107g on my scales. And SVC.com sells it for $6. Win-win-win.