Motherboard not working correctly,it doe not start,i checked atx power supply,power to board is correct on all pins,no prob to atx,then removed all hdd and cd drive and fdd drive,cleared cmos jumper and shorted no change,
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Re: no live video and bios screen
Ok.so far so good..but have you checked the ramm dimms and most of all the video card?look carefully to see the integrity of the moather board like condensors and other faulty signs. by the way?what tipe of mother board do you speak about? after checking these and still not working you should reduce the fault to 3: 1 motherboard itself 2ramms 3 video tell me the result please..we may find the problem after all.. bye
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This could be any number of problems. First start with hardware. Is everything seated and connected correctly? Are the hard drives installed correctly. Are the power on pins on the board set correctly or pinned at all? Is the ram the correct ram?
Check the hard drives, are they functional, do they boot with other computers?
Use a volt meter and check that the power supply is producing the correct voltages on all the connectors and rails.
If that all checks out, it might be a bios error. Check your boot load order and if the motherboard is detecting the hard drives, check that the correct bios settings for OS management are in place as this is a server. Is the RAM power settings (voltage) and speed correctly selected? Will the computer boot from optical drive using a live CD? Will it boot from a USB live OS (like Ubuntu)?
Since it's not booting, you may not have compatible hardware or damaged hardware. The OS that's installed on the hard drives may not be able to load on the new (older model) motherboard due to driver incompatibility.
It sounds like the ATX power supply is not getting turned on by the motherboard.
In order for this to happen, pin 14 (PS_ON*) of the 20-pin ATX power plug from the power supply must be pulled to ground. You can test this by plugging the power supply in to AC power without it plugged in to the motherboard.
Using a paper clip, short pin 14 (PS_ON*) to pin 15 (ground) and the power supply should turn ON.
Looking at the front of the 20-pin plug, with the latch on the top, pin 14 is the 4th from the left
' 11 ' 12 ' 13 ' 14 ' 15 ' 16 ' 17 ' 18 ' 19 ' 20 '
' 1 ' 2 ' 3 ' 4 ' 5 ' 6 ' 7 ' 8 ' 9 ' 10 '
Front of 20-pin ATX Power Connector
If you can turn on the power supply by shorting pin 14 to ground, but it doesn't happen when plugged into the motherboard, there is most likely a jumper setting on the motherboard which has not been configured correctly.
A micro ATX or mATC motherboard will not fit any Sony VAIO VGX-XL* model HTPC. These systems have a non-standard form factor, proprietary motherboard built for Sony by ASUStek (based on their ASUS P5 boards).
Micro ATX or mATX boards do not match the mounting screw pattern, and the case and rear panel would require major modifications (and many internal components removed and not reinstalled) for any replacement motherboard. The Power Supplty is also non-standard 18-pin version of an ITX low profile model power supply.
There are a few upgrades which can be made to a stock XL2 (up to 4GB RAM, better low-profile video/graphics card, DVD optical drive replacement with Blu-ray, a SSD system OS/BOOT drive), but the motherboard, power supply, BIOS and and OEM Pentium D processor cannot be upgraded (because of a locked BIOS microcode). The XL3 model offers a few more opportunities for upgrade (up to 8GB RAM, upgradeable Core2 Duo processor options) but the rest of the restrictions apply (motherboard, power supply not upgradeable).
You may clean the memory board and video card connector with pencileasier and with alcohol the connectors and reinstall it. this will work. or you need to replace the power supply the orange wire 3.3v might be missing or red+5v, white-5v or the purple wire +5v
To see if power supply works unplug the psu from the motherboard and drives then plug the power cord into psu and wall the fan should come on letting you know that it works.
you can also get a multimeter and check each individual connector on the 20/24 pin connector to motherboard. check the psu docs for the correct voltages to each pin
If you smelled smoke then chances are that something may have gotten toasted. remove all expansion cards and try to turn on computer if nothing happens then the motherboard may have gotten toasted. Check the motherboard and expansion cards along with memory for shorts and burn spots.
Remove the BIOS recovery jumper near the battery on the motherboard and attempt to boot. If the system displays a startup screen, replace the jumper on pins 1 and 2 (pin 1 will have an arrow by it) and configure your bios appropriately.
It cannot find your hard disk to boot from Check the 4 pin power cable is correct and that the ribbon cable is fitted correctly. with the stripe side nearest the power cable and next to the No.1 pin on M/board
Hi quezalte, there are three versions of this board. Please provide which version you have. This can be found on the box or on the board. (v1.1, v2.1 & v3.0) Did you add thermal grease in-between the CPU heat-sink & fan assembly? Did you clear the cmos/bios page 9, in you're manual. (Do not forget to place the jumper back to Normal as shown in the manual). You're board must have sufficient power to operate. Suggest you're current power supply uses a 24-pin ATA _12v main connector at ATX1 page 10. (Though the mother board mentions you can use a 20-pin ATX power connector). (Not suggested). You also must connect the auxiliary case power supply connector, 4-pin molex to ATX12V page 10 in you're manual. Lastly, remove & reseat you're video card. Make sure the video cards copper connector's are evenly & completely inserted into the PCIE orange slot. You will not see video display if it is not seated correctly. Some PCIE video cards may also need power. Some may have a connector on them. (If you would have posted the name & model of you're PCIE card I could have advised whether is needs extra power). Lastly, you're power supply should be no less than 450watt. If you add hard drives to all the SATA slots available to you're board. I suggest you use a 550w power supply. If after checking & adjusting all of the above & you still have some problems. Re-post you're problems here. I will address any & all for you.
Ok, try connecting just one thing at a time - start of with just your board and the power supply... still smell burning? There's probably an issue with the power supply - no fans & leds would indicate this too (can you hear anything when you power up?)
What cooling have you been using - weird quetion, but is there any chance there could be moisture on the board? (either from water cooling or from condensation in the room)