I received a replacement motherboard from MSI itself
this board dosent start at all ... only the Power LED (Green Light in the front) keeps blinking ... i have tried removing / replacing all the following connections :
- Front Panel Jumpers
- Front Panel USB Jumpers
- Power / HDD Connections
Any solutions ???
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Re: Blinking Power LED ... no other action
Some of this will seem basic or even a rehash of what you?ve already done but please keep an open mind. The one thing I?ve learned over the years is never assume anything especially when things aren?t working like they?re supposed to.
-The first thing I would do is to check each screw, card, connector and component you installed to make sure nothings being shorted out or is improperly connected. Common occurrences are screws touching capacitor or other component leads.
-Check the power connectors to make sure everything is connected correctly and that all the contacts are still mounted in the plastic connector correctly.
-Check the output on your power supply and verify it?s rated for your motherboard. It?s possible that whatever caused them to replace the motherboard could have been caused by a defective power supply or vice versa.
-Make sure the motherboard is correctly grounded to the chassis per your instructions. Typically the mounting screws touch a grounding plane on the motherboard and in turn ground that to the chassis. If your using plastic mounting studs that might be a problem.
-Verify the power switch is working correctly.
-Make this as basic a machine as possible: remove and add in cards (except primary video card), remove all USB components, reduce the size of your memory (RAM) and if you have multiple hard drives remove all except your boot drive.
-Try a more basic known good video card, a PCI if you have one.
-Again whatever problem caused MSI to warranty replace your motherboard could have damaged your processor or memory. I would have expected a beep code but if you?ve gotten this far without resolving your problem we?re running out of possibilities.
-If nothing changes can you tell us some more about the status of the computer or what led up to this? Did you just build it; just install a new part, power problems, anything?
Let us know what you turn up and please don?t forget to rate the posting.
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They connect to the JFP1 connectors on the lower right edge of the board. The power LED connects to the 2 and 4 pins, The HDD LED to the 1 and 4 pins, the reset to the 5 and 7 pins and the power switch to the 6 and 8 pins. The pins are numbered up down right to left like this.
MSI doesn't have information on the 7548, since it was made directly for HP. Here is a diagram of another MSI similiar and usually they have their pins on their jumpers pretty much the same. You would use JFP1, And Pin's 1&3 would be the hard drive, 2 & 4 would be the LED, 6 & 8 would be the power switch, and 5&7 would be the reset switch. I know your motherboard is setup slightly differnent, but your JFP1 should be in the right hand corner all by itself.
I'm attaching a diagram of the layout of a similiar board
Make sure if you have a 4 pin 12 volt connector on the board, it is making connection to the supply.
Try disconnecting the power to motherboard from supply and disconnect your CMOS battery.
Short the clear CMOS connections to assure memory drain.
Remove and reseat your CPU and Memory.
Re-install all remove and try the unit.
This is strange because MSI doesn't have information on the 7548, since it was made directly for HP. Here is a diagram of another MSI similiar and usually they have their pins on their jumpers pretty much the same. You would use JFP1, And Pin's 1&3 would be the hard drive, 2 & 4 would be the LED, 6 & 8 would be the power switch, and 5&7 would be the reset switch. I know your motherboard is setup differnently, but your JFP1 should be in the right hand corner all by itself.