Question about Dell (6F858) Cooling Fan

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How do I check the CPU cooling fan setting in the BIOS please ? I also understand my PC has a TV tuner - how do I access it please ?

The cooling fan is running at a constant speed (noisy) whereas it used to adjust itself depending on operating temperature.

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Maya Rai

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To go to BIOS settings, you press F2 or Del when the PC boots (before the OS is launched). Read the onscreen instruction carefully and browse through the settings in BIOS for CPU cooling Fan.

For TV tuner card, did you try connecting a cable connection to it? It comes with a software or alternately, you can use Windows Media Center to browse through the channels and play your stuff.

Posted on May 13, 2015

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Penetangtech

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On startup push F2 (or DEL or F12) to enter setup/bios.

As for the tv tuner, you'll need to connect Cable TV to it then use some software such as Windows Media Center, to view the channels.

Posted on Oct 28, 2014

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jeremy lang

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SOURCE: Interior blower fan working intermittently.

sounds like ur blower resistor pack

Posted on Jun 15, 2008

Anonymous

  • 1 Answer

SOURCE: Need the Location of the temperature sensor on 95 olds cutlass.

The image isn't loading, so I can't tell if this has been 100% answered, but here's the text version:

Should be a fuse panel under the hood, passenger side near the coolant tank and radiator inlet. In that panel should be 2 large square fuses. These are fuse/relay combo deals. Switching these out should fix you right up. Mine had the same problem about a month ago and I had to replace them then.

Posted on Feb 21, 2009

Ray Keckeisen

  • 599 Answers

SOURCE: 2003 Silverado ac/heat blower does not work

yes make sure all the wires are off the blower motor and jump it to give it 12 volts if the blower works the problem is else ware. get back to me if you need more help,please don't leave bad rating get back to me and we'll go from there

Posted on May 15, 2009

Anonymous

  • 93 Answers

SOURCE: 2000 Caravan-Engine cooling fans not running, replaced temperature sensor and fan relay, still not working-HELP

Did you replace the sensor by the thermostat in the engine block or the one under the drivers headlight, There are two, the one next to the thermostat controls the temp gauge in the vehicle. the one under the headlight assembly controls the actual fans and is a electronic module. You have to remove the head light assembly to get to it.

Joe

Posted on May 29, 2009

Anonymous

  • 5 Answers

SOURCE: 2004 mitsubishi outlander cooling fans not operating

you must ring mitsubishi as the problem is the cooling fan controller and this is product recall and will be replaced for free

Posted on Jun 08, 2009

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Need a wiring diagram of the 2 wires from the temp sending unit that controls the temp gauge and cooling fans on a 99 grand am gt. Need to see where they go They disappear behind the engine


The PCM regulates voltage to the coolant fan relays, which operate the fans. Refer to Engine Controls.

Engine Cooling Fan Description - Electric
The electric cooling fans are used to lower the temperature of the engine coolant flowing through the radiator. They are also used to cool the refrigerant (R-134a) flowing through the A/C condenser.
Operation
The electric cooling fan operates when the engine cooling temperature exceeds a certain value. The cooling fan on this engine is controlled by the PCM. The cooling fan has one speed. The PCM turns the cooling fan ON by grounding the coil of the cooling fan relay when certain conditions are met. When the A/C is requested, the cooling fan will also be turned ON.
Power for the cooling fan motors are supplied through Cool Fan #1 and Cool Fan #2 relays. The cooling fan relays are energized when current flows from the fuses in the Cell 23: Cooling Fan Controls , and through the relay coils to ground through the PCM. The Low Speed fans control circuit is grounded for low speed fans operation. During low speed fans operation, both fans run at a slow speed. The High Speed fans control circuit is grounded for high speed operation. During high speed fans operation, both fans run at high speed.
Important: When certain Diagnostic Trouble Codes (DTCs) are present, the PCM may command the cooling fans to run all the time. It is important to perform Powertrain On Board Diagnostic (OBD) System Check prior to diagnosing the engine cooling fans.
If a problem that involves the low speed cooling fan relay control circuit exists, DTC P0480 should set. If the problem affects the high speed cooling fan relay control circuit, DTC P0481 should set. A problem with the ECT sensor should set DTC P0117, P0118, P1114, or P1115. Any of these DTCs will affect cooling fan operation and should be diagnosed before using the Cooling Fan Diagnosis tables. The Cooling Fan Diagnosis tables should be used to diagnose the PCM controlled cooling fans only, if a DTC has not set.

The engine coolant temperature (ECT) sensor (3) is a thermistor, a resistor which changes value based on temperature, mounted in the engine coolant stream. Low coolant temperature produces a high resistance (100,000 ohms at -40°C) (-40°F), while high temperature causes low resistance (70 ohms at 130°C) (266°F).
The PCM supplies a 5 volt signal to the ECT sensor through a resistor in the PCM and monitors the terminal voltage. Since this forms a series circuit to ground through the ECT sensor, high sensor resistance (low temperature) will result in high PCM terminal voltage. When the resistance of the ECT sensor is low (high temperature), the terminal voltage will be drawn lower. This terminal voltage indicates engine coolant temperature to the PCM.
A hard fault in the ECT sensor circuit should set either a DTC P0117 or P0118. Remember, these DTCs indicate a malfunction in the engine coolant temperature circuit, so proper use of the DTC table may lead to either repairing a wiring problem or replacing the sensor, to properly repair a problem.

The engine coolant sensor is an input to the PCM , Two wire's both go to the PCM .An the PCM turns on the cooling fans !

DTC P0480 Cooling Fan Relay 1 Control Circuit
DTC P0481Cooling Fan Relay 2 Control Circuit
The Body Control Module (BCM) request the cooling fans. The BCM sends a Class 2 message to the PCM in order to enable the fans based on various inputs. Thebattery voltage travels to all three cooling fan relay coils. The PCM enables cooling fan relay #1 by providing the ground path. The PCM enables cooling fan relays #2 and mode control together by providing a ground path. The left and right cooling fans are connected in series. This will enable both fans on low speed when the fan #1 relay is energized. When all three fan relays are energized, both fans will operate at high speed. The high speed is possible because the fan relays are wired in a parallel circuit. When the PCM detects that certain DTCs are set, the PCM will enable the cooling fans.
The PCM will enable the engine cooling fans when certain Diagnostic Trouble Codes are set.

Important: A short to ground will cause an open fuse(s). Before performing this diagnostic procedure, inspect the fuse(s) for an open.
1
Did you perform the Instrument Cluster System Check?
--
Go to Step 2
Go to Instrument Cluster System Check
2
Turn the ignition switch to the ON position.
With the scan tool select Instrument Panel Cluster, Special Functions, Instrument Panel Cluster (IPC) gauges.
Perform the Coolant Gauge Sweep Test.
Does the coolant temperature gauge complete a full sweep when commanded?
--
Go to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls
Go to Step 3
3
Replace the instrument cluster. Refer to Instrument Cluster Replacement .
Did you complete the repair?
--
Go to Instrument Cluster System Check
--

Your best bet would be to take your vehicle to a qualified repair shop that knows how the system works . An has the tools to diagnose the problem .

Nov 13, 2016 | 1999 Pontiac Grand Am GT

2 Answers

How do I check the CPU cooling fan setting ? How do I access the TV tuner ?


Is it full of dust and the motherboard has maxed the speed in an attempt to cool it? Otherwise, go into your BIOS and confirm that the fan speed controller is enabled. The Control Panel in Windows may also have a setting.

Oct 16, 2014 | Computers & Internet

2 Answers

Air conditioning


please follow this steps and fix it.
A fan failure, or a failure of the fan relay or control circuit is bad news because it can allow the engine to overheat.
Five things may prevent an electric cooling fan from coming on:
  • Defective temperature switch or coolant sensor
  • Engine thermostat is stuck OPEN (engine never gets hot enough to turn on the fan)
  • Failed fan relay
  • A wiring problem (blown fuse, loose or corroded connector, shorts, opens, etc.)
  • Bad fan motor
ELECTRIC COOLING FAN QUICK CHECKS.
One way to quick check the fan circuit is to start the engine and turn on the A/C to max. If the fan runs, the fan motor, relay, fuse and wiring are all okay. But this test doesn't show if the temperature switch or temperature sensor and PCM are energizing the fan when coolant temperatures are high.
To check the temperature at which the fan comes on, turn the A/C off and keep the engine running until it reaches normal operating temperature. Most fans should come on when the coolant reaches about 200 to 230 degrees. If the fan does not come on, something in the control circuit is defective. Resistance checks should then be made on the temperature sensor or switch, and a voltage check on both sides of the relay (you will probably need a wiring diagram of the fan cooling circuit on your vehicle to identify the relay terminals and wiring connections).
The fan motor itself can be checked by using jumper wires. Unplug the wiring connector on the fan, and use the jumper wires from the battery to route power directly to the fan. If the fan motor is good, the fan should spin at normal speed when supplied with 12 volts. Noisy bearings or a slower than normal speed would indicate a worn motor.

Jun 11, 2013 | Cars & Trucks

1 Answer

I have a HP M1270N Media Center PC. The CPU Fan


The CPU fan is designed to run constantly to prevent the CPU from overheating. The speed depends on temperature condition of the room; slow in cold and fast in a hot room. However if you suspect that it runs too fast them try re-seating the CPU. WARNING: Re-seating should only be done if you are know how to do; don't experiment.

If it is running noisy, you can apply one or two drops of machine oil to the fan's spindle.

Other reasons include deposits of dust; use a blower to remove dust from the heat-sink.

To make sure you CPU is not in a critical state, log in the BIOS and in the hardware monitoring tab check the CPU temperature. It should be near 60 deg Celsius or 140 Fahrenheit.

One thing more, do not apply thermal grease in excess; its a conductive compound and can short the motherboard if it melts and deposits on the motherboard due to high CPU temperature.

May 25, 2010 | HP Media Center m1270n (PP132AA#ABA) PC...

1 Answer

My side by side ge refrigerator model gss20iepjcc make a holling sound. it is caused by the fan motor in the freezer slowing and reving up constantly. what is the solution to this problem?


Normally this fan is silent in operation, and does adjust it's speed dependent on temperature requirements.

However - if it is on all the time, thee may be a fault with either the sensor or temperature control (main) board.

If the sound does actually stop for intervals - just buy a replacement fan, as the bearings may be corroded enough to make it noisy.

You can replace this as a DIY fix if unplugged, and the back panel removed.

Mar 02, 2010 | GE Refrigerators

1 Answer

I'm trying to find out how many cooling fan relays are in a 1999 Ford Taurus SE with the 3.0L Vulcan OHV engine. This model year has done away with the CCRM (Constant Control Relay Module), so the relays...


fuse #9 protects the 2 cooling fan relays.

It looks like the hgh speed cooling fan realy is in a thin box mounted sideways between the battery and fender.

It has high speed relay, autolamp relay, autolamp headlamp relay, horn relay, washer motor relay, wiper hi/lo relay, wiper park relay.

Section 03-03: Engine Cooling 1999 Taurus, Sable Workshop Manual
DESCRIPTION AND OPERATION Electrical System NOTE: With A/C ON, the cooling fan motors will run continuously. Cooling fan motors will not cycle ON and OFF with A/C clutch (2884) .

NOTE: An exception to this is when vehicle speed is over 61 km/h (38 mph) and coolant temperature is below 100°C (212°F), and A/C head pressure is below 1.71 MPA (250 psi). The cooling fan motors will then automatically shut off.

The cooling fan motors are mounted within a fan shroud (8146) behind the radiator (8005) .

Engine Cooling Fan Control CCRM Applications The PCM monitors certain parameters (such as engine coolant temperature, vehicle speed, A/C on/off status, A/C pressure, etc) to determine engine cooling fan needs. The PCM controls the fan operation through the Fan Control (FC) output (single speed fan applications) or the Low Fan Control (LFC) and High Fan Control (HFC) outputs as shown in Table 2. Although the fan control (FC), low speed fan control and high speed fan control relays are normally open relays, the FC/LFC circuit is wired through a voltage inverter inside the CCRM. The voltage inverter ensures that the PCM must turn on (ground) the FC/LFC output to turn the fan off. This is done so the cooling fan will operate in the event of an open FC/LFC circuit.

Stand-Alone Fan Control Relay Applications The PCM monitors certain parameters (such as engine coolant temperature, vehicle speed, A/C on/off status, A/C pressure, etc) to determine engine cooling fan needs. The PCM determines engine cooling fan control requirements and controls the fan operation through the Low Fan Control (LFC) and High Fan Control (HFC) outputs (Table 3).

Jun 29, 2009 | 1999 Ford Taurus

1 Answer

2000 Lincoln LS overheatjng with ac on. My coolin fan is not speeding up when i turn on my ac it runs the same


HI, there are three devices that control fan operation and speed as well. i recommend inspecting these three components for there operational value. test thoroughly and check the wires as well. if you detect any faults within these three devices, replace immediately. I will list the parts to inspect and there respective definitions as well.

Problem spots to inspect--

1.Inspect the Cooling fan switch-- The cooling fan switch on electric fans monitors coolant temperature signals from the engine control computer. When the engine is cool, the switch opens to keep the fan from spinning. When engine is warm, the switch closes to turn fan on for cooling.

2. Inspect the Cooling Fan Control-- This module Reads the temperature of the coolant and passes the information to the engine control computer (ECC). The ECC receives analog information and signals the cooling fan switch to cycle the cooling fan on or off, as required.(controls actual speed as well)

3. Inspect the Temperature switch-- A bi-metal, heat activated, switching device that controls an electrical circuit based on engine metal/coolant temperature. It controls the cooling fan(s), temperature light or gauge, fuel mixture, emissions controls and electronic-control unit functions. It's usually made of brass or stainless steel and uses a tapered pipe thread (NPT) for dependable sealing. replace if faulty.

You will find the problem in one or all of the above discussed areas.

Please rate and god bless:)

May 04, 2009 | 2000 Lincoln LS

1 Answer

Cpu fan not running fast enough


This will depend on the motherboard you are using.

however, you need to make sure that the CPU fan lead is plugged into the correct plug on the motherboard... for example, I have an Intel 975xbx motherboard and it has 4 fan plugs, but only one of those is for the CPU. The others are for front/rear/top fans. If the CPU fan is plugged into one of the secondary ports, the CPU fan wont speed up correctly.

Also, some BIOS settings in the motherboard allow you to enable or disable automatic fan speed adjustment, and also set the temperature points.

Dec 03, 2008 | Zalman Tech Computers & Internet

1 Answer

Toshiba 4010 is giving me a "warning, problem with the cooling system message" Machine gets real slow. How can I inhibit this message, I have it on a cooling pad?


The electrical components in a PC generate heat, and fans inside the PC help move the air to keep the components from getting too hot. Excess heat will cause the fans to run constantly, damage components, and limit the speed of the CPU. All of these problems with high power and high heat will cause applications to work slower than normal. One of the main functions of the BIOS is to monitor the temperature and adjust the operating conditions. While the sound of the fan running all the time can be annoying, it may the first clue that your PC is running as efficiently as possible. To help your PC as cool and as efficiently as possible, do one or more of the following corrective actions.
  1. Update the BIOS
  2. Keep air vents clear and clean
  3. Minimize disk operation
  4. Minimize CPU operations
  5. Check whether FAN is enabled in BIOS
Thanks Rajesh

Jul 13, 2008 | Toshiba Computers & Internet

2 Answers

High speed fan


Well it may just be a program has set it and hasn't set it back... You can use a program called SpeedFan to "Control" ya Fans here ----> www.almico.com/sfdownload.php

Aug 20, 2007 | Gateway 830GM (RB830GM) PC Desktop

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