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motherboard installation.

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by egypt2fla

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I installed a K7 motherboard and Duron socket A CPU a few days ago. I powered pc up with a floppy, cdrom ,video card and memory attatched to board. I made to the bios setup and then lost video. CPU fan continues to spin but the board is not powering up long enough to reset defaults in bios. I cleard cmos and attempted to power up again..Same results ,I get video for about 15 seconds tops. What have i done wrong ? I have thermal grease on the processor and heat sink and CPU is in Pin 1 posistion. Could the board or CPU be DOA?

10 replies

by jacques brand

Hi...Do you have more than one memory chip on the motherboard? If so, remove one by one and see if it makes any difference.
It sounds like the error occurs while the pc is doing the post check. Bad or not the right memory type might also be the cause. Is your CPU new or second hand?

by egypt2fla

It is new ,i purchased from newegg last weekend. Also i'll add that the PSU is only 230 watts but it was powering the previous P2 cpu that sat on a asus board with Win XP loaded on HHD. There is one stick of Ram that was also purchased brand new from new egg.

by egypt2fla

I swapped memory slots and was able to move around the bios for about 20 seconds which is longer than I've been thus far and while trying to set the cdrom as the 1st boot device ,the pc lost video and the PSU simmered down . CPU fan continues to run..

by egypt2fla

I just need to add even though the issue is un resolved ,Thanx for the response jacque! it gave me something else to try. Thank you.

by jacques brand

Hi Buddy?This sounds more like PSU issues. You said that you are using the same PSU that was installed in your old P2 pc?right? My question.. Does your new motherboard have only one power socket ?connecting from the PSU to the Motherboard? or is there a second one with 4 pins close to the processor?. If there is and you don?t have both connected or your PSU is to old.. Then you will experience similar issues.
Let me know what model motherboard you have?!

by egypt2fla

Thanx again..Yes it only has the 20 pin connector on the PSU but I dont have a AUX connector on the motherboard either. The board is a M848A Socket 462 made by pcchips. I didnt want to spend big money on this one my daughter only needs it for school work. I have thought about the PSU also. Maybe I'll pick another this weekend.

by hal 9000

I would first hazard a guess on the PS being at fault here as what you are describing is a perfect example of a Bad Power Supply and what makes it worse is that ti appears to work as things like the Fan are running but nothing is happening. If you can try it with a [b]Known Good[/b]Power Supply to see if that cures the problem.

I recently had a system that would boot 1 in 10 or more times but it stayed running with an error message on the On Board LED counter. That was a Bad Power Supply and was a nasty one to come to terms with as everything appeared correct but the PS had gone bad but not to the point of no longer working it just didn't supply enough power for the load that was being placed on it.

Col

by thechas

While a 230 watt power supply will run a P2, it is far too light for a socket A system.

Switch to at least a 400 watt supply before you have a catastrophic failure and destroy everything.

The last time I checked at NewEgg, they did not have any "new" socket A motherboards, only returns and refurbished.

The fact that the system powered up once does not prove that the motherboard is good. If a bigger power supply does not correct the problem, I think I would get a RMA from NewEgg and send the motherboard back.

One final thought, is the specific Duron CPU you purchased supported by the BIOS on the motherboard? Check the motherboard manufactures web site for CPU compatibility. I have found that even if the motherboard supports the clock speeds for an AMD CPU if the BIOS does not support the specific CPU it can be difficult or impossible to get the combination to function reliably.

Chas

by egypt2fla

I did make sure the CPU was compliant with the board and it is also listed in the Pcchip manual i received with the motherboard. I placed the original Board back into the case and the PSU does power it up with no problem but i will try aa PSU with more wattage this weekend thanx to all responses.

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