Is it possible to substitute a female 4-PIn molex for a female 3-PIn molex on any mobo particularly IBM? I know the 3-PIn (black, red, yellow) is all volts\ground but I forgot what the 4th pin purpose was(Commonly with the orange cable as the last on either side of the in-line) Is it manipulated to reduce\increase speed when referring to a fan? Just replacing a couple of 60x20mm assembly fans for a IBM thinkcentre 8183. I'm pretty sure the orange wire is not important. Thanks.
-
they call, they telnet, I hangup, I laugh, I get hiccups and digital breakups. -
Re: Is it possible...
Well orange generally denotes 3.3v, I'm sure it does something... -
Re: Is it possible...
If you mean small fan connectors that fourth pin/wire is for PWM control signal for speed control chip integrated into fan itself.
In normal/older three pin fan connector third pin is for RPM signal
http://www.allpinouts.org/index.php/..._Fan_ConnectorComment
-
Re: Is it possible...
Standard 4-pin Molex [type for drives] is Red, Black, Black, Yellow.
+5v, ground, ground, +12v.
Standard 3-pin fan connectors are +12v, ground, tach [not in that order]
Standard 4-pin fan connectors are +12v, ground, tach, PWM [not in that order]
Tach is for RPM monitoring.
PWM is for Speed Control.
But, IBM & HP [and old Dell] tend to have some non-standard pin arrangements mixed in with standard so be careful.
.Mann-Made Global Warming.
- We should be more concerned about the Intellectual Climate.
-
Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
- Dr Seuss
-
You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
-
Comment
-
Re: Is it possible...
So the orange cable was the PWM. Was successful with substituting the Superred 26K1253 with the female 4PIn molex for the female 3PIn molex. Was only able to buy a 4PIn rather then a 3PIn. The 3PIn models are hard to find. I came to the conclusion that PWM is not important unless you want the ability to control the available rpm rate of fans. I did some experimenting on a different IBM mobo and the PWM is not required for normal operation. The PWM is the only cable that is not connected. The rest of the three are connected and the fan is functioning quite well. They both are brand new OEM.they call, they telnet, I hangup, I laugh, I get hiccups and digital breakups.Comment
-
Re: Is it possible...
You posts are confusing because (although molex does make some as well as numerous other 'non-molex' connectors) fan headers are not called molex, they are called IDC.
http://www.allpinouts.org/index.php/..._Fan_Connector
.Mann-Made Global Warming.
- We should be more concerned about the Intellectual Climate.
-
Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
- Dr Seuss
-
You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
-
Comment
-
This specification for the Acer Chromebook Acer Chromebook Spin 311 CP311-3H - (MediaTek 8183, 4GB, 64GB eMMC, 11.6 inch HD Touchscreen Display, Google Chrome OS, Silver) Chromebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Acer Chromebook Spin 311 CP311-3H - (MediaTek 8183, 4GB, 64GB eMMC, 11.6 inch HD Touchscreen Display, Google Chrome OS, Silver) boardview and Acer Chromebook Spin 311 CP311-3H - (MediaTek 8183, 4GB, 64GB eMMC, 11.6 inch HD Touchscreen Display, Google Chrome OS,...09-06-2024, 10:20 PM
-
When i fully shut off mac, orange light goes off and wont react to power button. I have difficult time resetting with combination "shift+control+option and power button", because it rarely works (reason unknown), when i manage to get orange light and then press power button macbook wont turn on and orange light goes off. When i hold combination with power button it turns on, and works fine if put it to sleep mode.
Works with battery and charges, but when i shut off i get this problem.
It had liquid spill. Board has no corrosion, keyboard is working, power button... -
Hi,
I have 2 Elitedesk 800 G4 which have stopped working after a BIOS Update. It was doing the updates and instead of rebooting automatically it just stayed off and I was left with an orange LED being on behind the mainboard and no reaction at all when I hit the power button, it seems to be completely dead.
Removing the battery, pressing and holding the yellow button on the MB didn't do anything either.
Others have updated fine without any such issues.
When googling I've found other people having the same issue with the orange LED being on and the PC also...10-29-2024, 04:27 AM -
i have macbook a1466 board id 820-00165 with power fan spin green to orange light not booting no image or light i tried to fix its leak chip number U1930 but sad it has been damage due of corrosion here i attach the image of board. possible there is a jumper ways for it can't find parts for it to buy.
in first image there is 0v out for lcd
https://ibb.co/5XppmpkH
in 2nd image U1930 chip is damage is there any jumper solution or parts can be compatible for it
https://ibb.co/fdJkbJs8 -
DVI male to VGA female is common: convert the output DVI connector on your GPU to "VGA" so you can use a VGA cable to connect to LCD.
DVI female to VGA male is common: convert the input VGA connector on your LCD to DVI so you can use a DVI cable to connect to GPU.
I suspect female to female will be a bit harder (impossible!) to find (no "typical" uses!)
I have DVI-I DL connectors on some headless machines. The connectors are hard to access. So, I want to tether a DVI-I DL cable to the connector and bring the "free end"...
Comment