If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Intel mobo fans problem
Hello,
I recently bought an Intel D865GBF, and I'm trying to connect two fans with extra-line for tachometer, but no success. I've tested the fans (Nidec Beta V, TA300DC, model M33406-33) directly to the power supply (only GND and 12V) and they works. I've tested the voltage at mobo's fan connectors and they read 11V (which is ok following the fan specs). Also, I've checked the connector matches the fan's lines order, though I know it should be pretty standard. But no success! the fans does not work when they are connected to the mobo, and the BIOS does not appear to have any option to turn them on/off. Any ideas?? 10x. |
#2
|
|||
|
|||
fans aren't wired the same as the board.
"DenKar" wrote in message ... Hello, I recently bought an Intel D865GBF, and I'm trying to connect two fans with extra-line for tachometer, but no success. I've tested the fans (Nidec Beta V, TA300DC, model M33406-33) directly to the power supply (only GND and 12V) and they works. I've tested the voltage at mobo's fan connectors and they read 11V (which is ok following the fan specs). Also, I've checked the connector matches the fan's lines order, though I know it should be pretty standard. But no success! the fans does not work when they are connected to the mobo, and the BIOS does not appear to have any option to turn them on/off. Any ideas?? 10x. |
#3
|
|||
|
|||
"DenKar" wrote in message ... Hello, I recently bought an Intel D865GBF, and I'm trying to connect two fans with extra-line for tachometer, but no success. I've tested the fans (Nidec Beta V, TA300DC, model M33406-33) directly to the power supply (only GND and 12V) and they works. I've tested the voltage at mobo's fan connectors and they read 11V (which is ok following the fan specs). Also, I've checked the connector matches the fan's lines order, though I know it should be pretty standard. But no success! the fans does not work when they are connected to the mobo, and the BIOS does not appear to have any option to turn them on/off. Any ideas?? A fan is either on or off, though you can slow it down a bit by lowering the voltage. If you are sure that there IS voltage on the motherboard fan headers, then you have a wiring problem with the fan itself. How, exactly, are you connecting the fan to the motherboard? Each fan should have a connector that will be a perfect match for the motherboard, and that connector should only fit one way, as it is keyed. But if that is the connector you are trying to use, how did you test the fans with the power supply? -Dave |
#4
|
|||
|
|||
"Dave C." wrote in message ... "DenKar" wrote in message ... Hello, I recently bought an Intel D865GBF, and I'm trying to connect two fans with extra-line for tachometer, but no success. I've tested the fans (Nidec Beta V, TA300DC, model M33406-33) directly to the power supply (only GND and 12V) and they works. I've tested the voltage at mobo's fan connectors and they read 11V (which is ok following the fan specs). Also, I've checked the connector matches the fan's lines order, though I know it should be pretty standard. But no success! the fans does not work when they are connected to the mobo, and the BIOS does not appear to have any option to turn them on/off. Any ideas?? A fan is either on or off, though you can slow it down a bit by lowering the voltage. If you are sure that there IS voltage on the motherboard fan headers, then you have a wiring problem with the fan itself. How, exactly, are you connecting the fan to the motherboard? Each fan should have a connector that will be a perfect match for the motherboard, and that connector should only fit one way, as it is keyed. But if that is the connector you are trying to use, how did you test the fans with the power supply? -Dave Motherboard fan connectors have power limits, those fans may require too much juice. Mike. |
#5
|
|||
|
|||
Hello,
These fans has three lines: GND, 12V, and a "tachometer". The 3rd line send a pulse to the mobo on every spin, etc. The 3rd line does not need to be connected, but I do want to be able to monitor the fans speed, and I don't want to cut the 3rd line on every fan. There's only one way to connect the fans to the mobo. The connector does not allow mistakes. I tested the fans standalone by connecting GND and 12V to the respective lines in a common power supply connector (I.E., red-black-black-yellow). I did read the fans PDF specs and they seems to be suitable for this mobo, in voltage, speed, etc. ANYWAYS.... I've tested the fans with an *identical* mobo and they works. This is a RMA case, right?? 10x |
#6
|
|||
|
|||
looks like it..
"DenKar" wrote in message ... Hello, I've tested the fans with an *identical* mobo and they works. This is a RMA case, right?? 10x |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
intel SE7210TP1-E - eps power supply problem - won't boot | dnt | Homebuilt PC's | 0 | December 2nd 04 07:01 PM |
Positive pressure to keep out dust, stacking fans a problem? | Bronney Hui | General | 10 | October 27th 04 02:13 AM |
Desperately need help installing OS with RAID on an Intel mobo | Nate | General | 10 | January 1st 04 07:17 PM |
Panaflo, ThermalTake fans | ArchGriffin | Homebuilt PC's | 8 | November 6th 03 03:41 AM |
Manual for intel mobo | steven67@ | Homebuilt PC's | 3 | July 15th 03 11:05 PM |