Question about Intel D845GVSR Motherboard

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CPU is not getting started

When i turned on the power supply,spikeguard fuse blowned and i heard a sound from back of my cabinet.i called technician to check it ,he said that my smps is not working.i changed it & now too its not working.suggest me how to check my smps is working properly or not.also is there any board or processor problem occured or is there a problem with startup button on cabinet? plz help me out on this.i have mercury 845 chipset motherboard.

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In SMPS 20 pin Connector please short the green and black wire with a twisterand on the smps. if the fan is rotating then the smps is ok

Posted on Jun 26, 2008

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Posted on Jan 02, 2017

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Amp fuse keeps blowing when car is turned off


It sounds like that fuse is supplying power to more than just the amp and is being shorted out in the START mode. Normally I would think the power to the sound system would be cut off by the ignition switch in the START mode. Try to find out what else that fuse supplies power to. You can disconnect suspected trouble areas to see if that helps locate the source of the fault.

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Tough one, but inspect the motherboard for a blown capacitor. You could test the power supply with a simple voltmeter. Not to mention simply seeing anything lit with the case open while powered one. gl

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How to change the fuse on Kitchen Aid model KEMS308SBL02 combination oven and microwave. The oven door locked after a power outage this week and now the oven won't come on.


Hi,

Press the "Off/Clear' button to cancel anything on the display, and reset the microwave. This is a soft reset and will simply get you out of any program you have started. Press it when the cooking complete reminder appears on the display.
Perform a hard reset. Pull the plug out of the wall power supply, and wait a moment. Plug the GE microwave back into the wall power supply to reset any anomalies with the microwave's memory. You will need to reset the time of day if you perform a hard reset.
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Help! We have a KV27TW75, Sony, cabinet tv, which simply stopped working. It's like the power was shut off. We doubt that it's worth fixing, but are wondering whether we could fit another tv INTO that...


The tv in the cabinet could be fixed. First check the mains fuse. It sounds to me that the internal power supply board fuse has blown, to access this you will need to access the back, once you have access to the insides of the set where the power cord enters the set you will find a small somtimes coloured fuse set in a small fuse holder, pop it out, take to your local electrical shop and you should be able to find the same rating fuse, and the good news is that they are only cheap. Make sure you get the exact rating fuse to replace the old one.

With regards to the cabinet if the above dos'nt fix the set, then yes it would be possible to put another set into the cabinet, but you would probably find you would have to do alot of modifications yourself to fit another set, you would have to find the screen dimentions, and need to be able to secure the set properly. hope this helps a bit and post back if you manage to get the set going again. thanks.

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1 Answer

The mini fuse(2A/240v) keeps on blowing up on the power supply port, what could be the problem


You can tell a lot from what the blown fuse looks like. If it's all black or even shattered, it's likely a short circuit somewhere. If it's just blown, then you have an overload.
Another way to find out is by figuring out when the fuse usually blows. If it blows when it's tapped, shaked or moved then you have a loose wire that's touching somewhere it shouldn't.
If it blows when you turn it up high, it might just not be able to handle that much power. Remember to ALWAYS turn down amplifiers when you hear noticeable distortion. Or, the sound pressure from the speaker might be jostling things inside the cabinet.
If it blows when you plug it in/ turn it on/ start using it you've got an electrical problem, not a mechanical one. You'll need to get the multimeter and start tracing faults.

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No power


Hello :

I also think that its the fuse . You need to replace it . To locate the fuse, remove the outer cabinet of the unit, which is usually held in place with a few screws. Once the outer cabinet is removed, follow the power cord into the unit. It will take you to the fuse holder, where the fuse sits. The fuse holder is located two or three inches into the unit, and may be attached to a power board .

CAUTION: Your microwave oven is capable of giving you a serious electrical shock, even when it is unplugged. I strongly suggest you seek the assistance of an appliance repair technician when conducting any microwave oven repair.

PLEASE DON'T FORGET TO RATE !

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1 Answer

PC dead. Replaced power supply. No lights. No nothing.


When that happens it is usually the motherboard.

To test parts you need a benchmark.

PSU can be tested using a multimeter.

Motherboard is tested using a tester like this one: PCI Test Card, PC Analyzer, Motherboard Test Card
Ram and CPU (CPU sometimes get damaged) are usually not damaged by this kind of problems, they can be tested mounting them on a working motherboard. For the RAM we also use a RAM tester that costs about $200.

Ensure also that the switch contacts to new motherboard are installed properly. A technician can test cabinet power switch using a multimeter, or carefully bridging with a screwdriver the switch on contacts on motherboard (do not do this unless you are sure about what you are doing)

Test the new PSU on a different socket, when a PSU blows , it may damage the main socket.

Also remember that new power supply units have two connectors. The big rectangular main one (24 pin) and a smaller 4 pins squared one.

As an home user you may not have access to testing equipment, therefore my suggestion is.

Ensure you are using the right PSU.

Ensure that the motherboard is connected to power switch.

Test the new PSU with a multimeter.

Examine the motherboard for blown or leaking components and burnt areas.

If you do not find anything, but the mainboard is still not working, then buy a motherboard-cpu bundle compatible with the PSU that you bought and assemble a new system inside the old cabinet.


Regards.

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Hi orinzelenak,

This may seem like to simple, but try checking to see if the technician plugged the fan power supply into the correct pin for it. It sounds like the fan is plugged into a external plug directly from the power supply and not into the board, which would control the fan speed for you. Give a look, and maybe it's just that simple.

Good Luck

Mark

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1 Answer

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This sounds like a power supply problem. Check for a blown fuse in the unit. If there is no blown fuse then the power supply might have a shorted or open component in it. Check for the blown fuse first if the fuse is not blown or it can not be fixed by changing the fuse then the next culprit is the power supply, you will have to have a qualified TV technician do this.

I hope this helps
Thank you
shuttle83

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