I too have an HP Pavilion a635w. i think i did something to ther mother board. i pulled the ram and installed more, when i turned on the pc it just beeps. i turned it off pulled out the new ram & put back the old. Same thing. I pulled all the ram and turned it on, same thing. so i am thinking that i damaged the motherboard. can you tell me what motherboard to purchase so i can get this puppy up and running. i think i found it for like $50, if so then i am happy. here is the link..... http://www.amazon.com/dp/B0013DO2PC?smid=ATVPDKIKX0DER&tag=dealtime-ce-feed-20&linkCode=asn
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Re: pavilion a635w motherboard problem
Hi HotOlds, you did not hurt the motherboard. You did not install the memory correctly. Take the old memory & look at the contacts on the DIMM. There is a notch there & a notch in the memory slot. These two notches must be matched up when inserted. Each memory slot has a locking tab at each end of the slot. When you insert the memory correctly the locking tabs snap closed ensuring the memory will not come out. The beeps you are hearing are telling you the memory is not seated correctly. Same for the memory you bought. However, the memory you did buy must match the memory for the Pavilion A635W. This link will show memory you can use for the Pavilion A635W motherboard. http://www.google.com/products?hl=en&q=HP+Pavilion+A635W+memory&um=1&ie=UTF-8&sa=X&oi=product_result_group&resnum=1&ct=title (Buying a new board). The link you have posted for the ECS Gf6100-M754 MB. Will not take the memory you currently have. You will have to buy DDR3 memory but that is not the main issue. If you intend to put this motherboard into the Pavilion case it may not fit. Measure the board in the HP & check the dimensions of the ECS board you want to buy. You will have to buy a new CPU as well. The HP uses an AMD CPU & the ECS uses an Intel CPU. Basically you will be buying a whole new system including the CPU & memory, which may not fit in the HP case. You will also need a higher power supply to run the ECS board. HP's power supplies are much smaller.
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if the system is running and hard drive is operating is is possible that the Video Card that is part of the Motherboard is Bad. THis is because both the laptop screen and external monitor are black.
You can take the laptop to a local shop but often the cost of repair is greater than the cost to replace.
if a shop will evaluate for free go there.
best case you have a bad stick of ram, worst case processor or Video section of mother board is bad. many other possibilities could be the cause.
the motherboard is the heart or core of the computer. if you change it you will be forced to change it fot the same model (no upgadre exist, well a new computer will be a upgrade).
so if yoy take of the moder board you will be left with the other componenst like; the dvd reader, ram memory, procesor, modem, cables, and whatever you computer had.
so even if yoy manage to get an android motherboard (is a moderboard that is made to put diferent brand of components in it) and put the components that were left of the pavilion, you will get the same performance as your old pavilion.
if you whant to increase the performance of that hp pavillion 7940. look for upgrades for the moder board of that computer. like a better memory module. or a better video card for better graphics. i dont think that the processor can be changed in some models they are fixed to the moder board or the mother board will not support any other kind of processor.
First pull motherbord from cabinet some times motherboard is grounding with cabienet.
Then pull cmos cell from motherbord for 10 minutes.
Refix RAM memory.
Reconnect ATX power connector to motherboard.
If still same issue then open processor fan and processor then clean dust from all place in mothebord.
If you still got same then something rong with your ram or motherbord.
Change ram then try.
Pull all card from PCI slot check motherbord only with RAM not even harddisk and other device.
just take the ram out and put it back. sometime when the ram hangs which wont let the pc start. and another solution for it try disconnect the power supplly plugs and reconnect them to motherboard. and switch it on hopefully it will start.
I found this replacement motherboard with a simple google search: http://www.google.com/products?hl=en&safe=off&q=HP+Pavilion+a635w+motherboard&um=1&ie=UTF-8&sa=X&oi=product_result_group&resnum=1&ct=title
You can just replace your video card. If your using the Hp A635w with the intergrated video it may have just died. You sill have a free AGP slot on the board. Buy a AGP card with DDR2 or DDR3, change the bios setting to boot to the AGP card first & Bingo! Your up & running. The HP A635w is a Micro-ATX form factor: 9.6 inches x 9.6 inches. Thats the board size & that is what you'll need to fit that HP case. Micro-ATX's limit you CPU type & speed. Like dual core's.
I've listed one board combo doing a quick search & this board will take your current memory & fit the HP case. http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=3594506&body=MAIN#detailspecs
As I mentioned you can go for the AGP card listed in this link. Six pages of AGP's. http://www.tigerdirect.com/applications/category/category_slc.asp?CatId=318&
It's up too you pick your flavor. Enjoy!