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HW Monitor questions

post #1 of 7
Thread Starter 
When I got the revised P67 board and was putting everything back together, I came across two different fan splitters in my box of cables and stuff. One of them looked like this, with three wires going to both fan connectors:



The other one had one three wires going to one fan connector, but only two going to the other, like this:



I used the first one to connect both my CPU fans to the mobo because it was longer. Now, looking at HWmonitor, my "CPUFANIN" RPM is all over the place, from 0 to 255, changing very rapidly (in blue). I looked in the case and the fans are definitely not changing RPM like that.

So I wondered whether it has anything to do with the fan splitter I used? What is the third wire that is present for one fan connector, but absent for the other?

Also, does anyone know what the temperatures highlighted in red are? Only "SYSTIN" seems to be fluctuating at all, and only slightly. Is that the Northbridge? The other two aren't changing at all, why is that?



Thanks!
Rokas' PC
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Rokas' PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k asus p8p67 pro GTX 470 4GB DDR3 1600 g-skill 
Hard DriveOSMonitorKeyboard
1TB WD 6GB/s Windows 7 Home Premium x64 24" 2ms latency 1920x1080 Logitech G15 
PowerCaseMouseMouse Pad
650W Corsair HAF 932 Logitech G5 Qck+ 
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post #2 of 7
You can only monitor the RPM of one fan at a time. The cable with 2 sets of 3 pin lines has a problem. As for all those things going on in HWmonitor, I don't know. Could be the bad cable, does it do that if you use the 3+2 pin one?
The Butthurt Box
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The Butthurt Box
(21 items)
 
   
CPUMotherboardGraphicsGraphics
Intel Core i5 2500K P67 Professional AMD Radeon HD 6950 unlock NVIDIA GeForce GTX 460 2gb 
RAMRAMHard DriveHard Drive
G.Skill Ripjaws G.Skill Ripjaws Intel X25-V Seagate Barracuda 
Hard DriveOptical DriveOSMonitor
WD Goflex USB 3.0 24x DVD R/W DL Win7 Ultermate 64 Acer 20in 1600x900 
MonitorMonitorMonitorKeyboard
Compaq 20in 1600x900 17in Dell 1280x1024 19in Gateway 1280x1024 Razer Blackwidow mech w/ cherry MX blues 
PowerCaseMouseAudio
Kingwin LZ-750 HAF 932 + sound activated lights Logitech G500 Rosewill USB headset 
CPUMotherboardGraphicsRAM
Pentium 4 3.2ghz w/ HT HP Intel IGP 4gb Mushkin DDR2 
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post #3 of 7
Quote:
Originally Posted by railfan844 View Post
You can only monitor the RPM of one fan at a time. The cable with 2 sets of 3 pin lines has a problem. As for all those things going on in HWmonitor, I don't know. Could be the bad cable, does it do that if you use the 3+2 pin one?
^^ this. remove or cut one of the yellow wires from the 3/3 pin y-cable or swap it with the 3/2 pin cable and check again.
post #4 of 7
Thread Starter 
Quote:
Originally Posted by gymenii View Post
^^ this. remove or cut one of the yellow wires from the 3/3 pin y-cable or swap it with the 3/2 pin cable and check again.
Its OK to just cut it? Is that any worse than just replacing it with the other one? If there's no disadvantage to just cutting it I will because its longer and more convenient
Rokas' PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k asus p8p67 pro GTX 470 4GB DDR3 1600 g-skill 
Hard DriveOSMonitorKeyboard
1TB WD 6GB/s Windows 7 Home Premium x64 24" 2ms latency 1920x1080 Logitech G15 
PowerCaseMouseMouse Pad
650W Corsair HAF 932 Logitech G5 Qck+ 
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Rokas' PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k asus p8p67 pro GTX 470 4GB DDR3 1600 g-skill 
Hard DriveOSMonitorKeyboard
1TB WD 6GB/s Windows 7 Home Premium x64 24" 2ms latency 1920x1080 Logitech G15 
PowerCaseMouseMouse Pad
650W Corsair HAF 932 Logitech G5 Qck+ 
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post #5 of 7
Quote:
Originally Posted by Rokabud View Post
Its OK to just cut it? Is that any worse than just replacing it with the other one? If there's no disadvantage to just cutting it I will because its longer and more convenient
Yes, it's ok to remove it or replace it with other adapter ... whatever works best for your setup.
post #6 of 7
Thread Starter 
Quote:
Originally Posted by gymenii View Post
Yes, it's ok to remove it or replace it with other adapter ... whatever works best for your setup.

Ok, thanks. And what about if I were to connect it to a fan controller? Does the fan controller use the information from that black wire at all?

Also, last time I was in BIOS it looked like the RPM value for CPU_FAN was different from what HWMonitor was reporting. I'll reboot in a minute and check on that.
Rokas' PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k asus p8p67 pro GTX 470 4GB DDR3 1600 g-skill 
Hard DriveOSMonitorKeyboard
1TB WD 6GB/s Windows 7 Home Premium x64 24" 2ms latency 1920x1080 Logitech G15 
PowerCaseMouseMouse Pad
650W Corsair HAF 932 Logitech G5 Qck+ 
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Rokas' PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k asus p8p67 pro GTX 470 4GB DDR3 1600 g-skill 
Hard DriveOSMonitorKeyboard
1TB WD 6GB/s Windows 7 Home Premium x64 24" 2ms latency 1920x1080 Logitech G15 
PowerCaseMouseMouse Pad
650W Corsair HAF 932 Logitech G5 Qck+ 
  hide details  
Reply
post #7 of 7
Quote:
Originally Posted by Rokabud View Post
Ok, thanks. And what about if I were to connect it to a fan controller? Does the fan controller use the information from that black wire at all?
Black wire? I think you mean yellow, and it reports fan speed and if your fan controller supports it, yes you need one yellow wire.

Quote:
Originally Posted by Rokabud View Post
Also, last time I was in BIOS it looked like the RPM value for CPU_FAN was different from what HWMonitor was reporting. I'll reboot in a minute and check on that.
Trust what the BIOS is reporting, period.
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