The temps, while they look high, are not in any meaningful context. What would be useful to know would be: the ambient temp, idle temp, load temp (prime 95 on all four cores, or some other standard test).

I've got a WHS based on a Gigabyte G41M-ES2L, E5200, 4 gig of RAM and EA380 PS. With only the main drive (HITACHI HD31000, 1TB 7200 RPM) spinning it draws 40w. The 2nd storage drive is the same 2TB Samsung drive. (The Samsung drives only draw 4w@idle, and are very quiet.) It's not hard building good...

On a Gigabyte MB that setting has nothing to do with the RAM timing settings (those are found in the Memory settings). I've yet to run into a situation where if the memory and CPU were run at rated speed the Enhanced setting didn't work fine. However, the timing on the all the signals is very critic...

b_rubenstein: I was trying to not make it in to a doctoral thesis, but simplifying things is really hard. As for real formulas, with the above addition, do I make sense to you? Oh, and excellent link! This doesn't fall into the realm of a thesis, because you aren't doing any research. It's simple e...

In my opinion, it makes more sense to use some real formulas to calculate this sort of thing:

http://www.comairrotron.com/engineering_notes.asp

It's better to get pointed in the right direction before doing Science Fair experiments.

Well, if dirty, dusty air is going to be passed through the cooler, then the less air the better. The fan should be under auto control so its speed is determined by the CPU temp, and the set point for the temp should be fairly high. People like to keep their CPU as cool as possible, but what is actu...

Yeah, the one that's in a case that has air filters.

-Swith memory from dual mode to single. Did you do this by taking out a stick of RAM? Did you run the PC trying both RAM sticks, one at a time? I wouldn't pay much attention to what file was being used when the PC crashed. That fact that several different ones are being used at the time of the cras...

If the CPU test crashes after 1 or 2 minutes you have a problem and it's prpbably hardware. The CPU test isn't very severe; Linpack is the heavy hitter. Try running only 1 stick of memory at a time and see if one of the sticks is stable. Check in the BIOS to see if the memory voltage is set to the r...

Perhaps the design of the loop allows for a certain amount of multiplication of the airflow from the smaller fan... Look, an electric motor converts electrical energy in to mechanical energy. The fan blades use that energy to move air. No matter what the configuration is, that's the physics. The ef...

How did SPCR determine the average consumption? Were any comparisons made to the Power Angel's KWh? The correct way to make this measurement is to run a set of various application tasks, measure the total power used and time how long it took to run the test. Average power is total power used divide...

You left out mother board BIOS control!!!

m0002a wrote: It seems to me that there could be a flaw in the logic here.

No flaw that's how efficiency is calculated while doing work; when it's idling it's just a space heater.

It's important to know the power used under those two conditions so one can evaluate the CPUs for different applications.

OCCT can be used to stress, the CPU, GPU or both together to stress the PS. If your computer can get through an hour of Linpack, the the problem is either with the video card or the drivers.

"II. The 7 Steps of the Eureka Process
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The new P45 series do the opposite, Normal means that voltage doesn't budge from default no matter what. The behavior describing the P45 I have also observed on the following Gigabyte boards here in my house: - GA-EP35-DS3R - GA-EP35-DS3L - GA-EP45-UD3L - GA-G41M-ES2L With voltage set to [Normal] t...

yuu wrote:No (it is 1.9 by default)

That's with the voltage set to [Auto]. If the SPD value is 1.8v ad the voltage is set to [Normal] it will receive 1.8v. the Auto setting Gigabyte BIOS' will almost always set the voltage higher than nominal.

I have yet to see a PS fan connector have more than a 2 pin +12 and ground connection. A PWM fan is the last thing you want.

sokre wrote:I(Slipstream shoud be good on pull).

A fan that does not have high static pressure will not push, or pull that well against a high impedance, i.e., attached to a heat sink.

Having said that, with a stock clocked E5200 you'd be fine with 2 800RPM Slip Streams in a push-pull configuration.

Is a GT 1850 quiet at 7v? Probably. How do you know it will be getting 7v? Are you going to manually set the voltage?! It will probably spin faster than necessary much of the time, when it isn't spinning fast enough the other. It's not like manually setting the speed on a CPU fan where there are se...

BlackWhizz wrote:Is a GT 1850 silent at 7v?

No. No operating fan is silent.

All PS's have a fan speed control circuit that is usually based on a temperature reading in the PS. The fan will almost never run at full speed unless it is under full rated load and the ambient temperature is high. The S-Flex F in my HX-520 barely spins a a few hundred RPM. The 1800 RPM GT would al...

The Slipstream uses a plain bearing and doesn't have a very long life mounted in a horizontal position. That's the reason for the S-FLEX F (1600 rpm) being recommended most often for this application. It also has a higher static pressure, which is appropriate for cooling a PS. (If I was going to rep...

On the other hand, the CPU voltage regulators are usually in that area so it might not be a bad thing to have cold air drawn in from that direction on some motherboards. If the VRM's are really too hot, then maybe. Remember that the low pressure area will be right behind the rear case fan. Any air ...

I have a Gigabyte EP45-UD3L MB in one of the computers here, and it's a fine MB, but you don't really need it for this application. A mATX G41 chipset MB with integrated graphics is all that is needed. It will be significantly cheaper and use less power (graphics and fewer devices on the MB).

Only if it transfers enough heat into your room in the winter to cut your heating bill. Otherwise the amount of power saved would never begin to pay for the heatsink.

shleepy wrote: That said, they also don't allow air to enter and exit...

Got that right, and the panel is adjacent to the rear case fan. That results in a short circuit path for the air flow causing other areas in the case to get reduced air flow.

Take a look at the I/O panel of a typical MB and count all the connectors. Then imagine cables running between a slot bracket and the MB for all those connectors.

Basically, your solving a none problem by creating all sorts of new ones.

The fan is defective. Something is either warped or out of balance. If you don't want to buy a new fan, then try getting Antec to send you a replacement fan. The next best thing is to get rubber isolation mounts instead of mounting the fan with screws.

You really need a new fan.