Energy-efficient S478?

tehfire · Post by **tehfire** » Sat Jun 23, 2007 6:24 am

After struggling with a 140W processor (Prescott @ 3.75GHz) for the past couple of months, I sold my Prescott and am now using a relatively low-power computer. I was just wondering: what's the most energy-efficient socket 478 processor out there? I need it to be a little powerful, however, so no 1.8GHz or anything for me...

Zorander · Post by **Zorander** » Sat Jun 23, 2007 7:04 am

Northwood cores run cool. Try to find the fastest Northwood CPU.

loz · Post by **loz** » Sat Jun 23, 2007 10:31 am

P4C for a good balance between efficency and power.
P4M for very low power consumption.

jojo4u · Post by **jojo4u** » Sun Jun 24, 2007 7:53 am

Sorryy, socket 478 is dead. According to processorfinder.Intel.com, there's is no CPU available with less than a TDP of 82 W and there are is no idle vcore management (C1E).

82 W TDP, 130 nm, 3,2 GHz: http://processorfinder.intel.com/detail ... Spec=SL6WG

tehfire · Post by **tehfire** » Sun Jun 24, 2007 9:34 am

::sigh:: yeah, I figured as much. I know some Asus boards had support for an adapter so you could use s479 processors on a s478 board. Any such luck using that adapter or one like it for cheapo MBs, say, an MSI PM8M-V?

jojo4u · Post by **jojo4u** » Sun Jun 24, 2007 10:13 am

tehfire wrote:I know some Asus boards had support for an adapter so you could use s479 processors on a s478 board.

Good luck finding an Asus CT-479. Ebay.de has 2 (expensive) offers. You probably need AGP and DDR? I'd recommend a socket 939 solution.

Bluefront · Post by **Bluefront** » Sun Jun 24, 2007 10:28 am

Well look.....A P4-2.4 Northwood provides plenty of power, is easy to cool, and doesn't draw a bunch of power. My entire system draws <50W most of the time. If you can find one, a P4-2.8 runs similar.....slightly faster, draws about the same current. Faster Northwoods, and Prescotts run much hotter and draw more current. Stay under 2.8 and you'll be ok in a low airflow system....

loz · Post by **loz** » Sun Jun 24, 2007 1:15 pm

My P4M 1.8 (SL6FH) runs perfectly cool (20Â° above ambiant temperature with Seti running) with passive cooling (12*166=2GHz @1.1v)
about 35$ on ebay.

jaganath · Post by **jaganath** » Sun Jun 24, 2007 1:43 pm

loz wrote:My P4M 1.8 (SL6FH) runs perfectly cool (20Â° above ambiant temperature with Seti running) with passive cooling (12*166=2GHz @1.1v)
about 35$ on ebay.

you need a mobo that can set CPU voltage manually though, hard to find these days.

jojo4u · Post by **jojo4u** » Sun Jun 24, 2007 2:27 pm

jaganath wrote: you need a mobo that can set CPU voltage manually though, hard to find these days.

The days of the undervoltable mainboards list ...

loz · Post by **loz** » Sun Jun 24, 2007 3:34 pm

Yes, I forgott that I had to use solder iron to have the last word, once.