Motherboard Fan Headers?

[imported_mostlyprudent]

I'm building a new system with a Gigabyte GA-EP45 DS3L. The board has three fan headers (SysFan, SysFan2 and PVNFan plus CPU Fan of course). In the past I have chosen which fan header(s) to use based on convenience for cable routing. Is there any difference between a SysFan header and a PVNFan header? My gues would be that the motherboard software may control fan speed based on different temp readings for each, but I cannot confirm this in the manual.

 

[BonzaiDuck]

Nobody's answered you yet here on this question. Are you sure you aren't speaking about a "PWM" fan header, when you say "PVN?"

I am not familiar with your particular Gigabyte board. What does the manual say? Are the SysFan and SysFan2 headers thermally controllable? Are you interested in thermal control of fans, as with the CPU fan header? I would think that the CPU fan header would be a PWM four-pin plug.

Here again, I'm reading things too fast, and I see you're already asking the question I've posed. Unless someone else chimes in here to give something more substantive than my hot air, you might check the user forum for that board at the manufacturer's web-site.

Two generations of motherboards earlier, besides controlling fans from BIOS settings, you could use SpeedFan to control the fans thermally. But some boards, particularly the one I was using then, would only allow the control of the CPU fan through SpeedFan. Surely your Gigabyte board allows for more than that, but I would not know for sure.

 

[NXIL]

Hey Most,

downloading manual for your mobo right now (GB site a bit slow--but not as bad as Asus), but, from the product summary, the fan headers are

# 1 x CPU fan header
# 2 x system fan headers
# 1 x power fan header

Lots of new power supplies have a fan header you can plug in to read the PSU fan speed, and I guess control it [?], though I would think that the PSU would want to control its own cooling fan; anyway, looks like that fan header is a power supply fan speed sensor.

Not sure if your PSU has that fan header; from the web site, looks like it does not:

http://www.corsairmicro.com/products/vx.aspx

And, download finally finished: diagram on page 7/104: PWR_FAN means power fan, i.e. power supply....

HTH

NXIL