Windows 7: PC won't boot with 8400GS

I recently ran into an issue where my PC won't boot anymore with my Geforce 8400GS inside. I put in an old no namer and it boots up fine. It did work before so im kinda stuck as to what the issue is. I get 1 long beep and 3 short beeps at POST.

Welcome to the forum,

Not my area of expertise but I found this for you till someone comes along,

Computer Post / Beep codes

if I am reading it correctly then it says its Conventional/Extended memory failure. I do plan to build a new rig but I don't have the funds to do so now. if I got these
Newegg.com - CORSAIR XMS3 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Dual Channel Kit Desktop Memory Model TW3X4G1333C9
would they be compatible with my A8N-VM CSM?

Well, just looking at the specs for your mobo here http://dlsvr03.asus.com/pub/ASUS/mb/...a8n-vm_csm.pdf

It says this about 184 pin modules,



That ram you just linked is 240 pin.

I put 184 pin in newegg's search and got this,

Newegg.com - 184 pin memory

I wish I could be more help, but I'm sure someone will be able to suggest something for you.

If the graphìc card may be causing the boot fail, then it may be an inadequate Power Supply. Check the wattage required by the card and check your power supplys wattage. If its less than the cards reccomendation, invest in a new PSU. Also, go into your bios using your integrated graphics, and be sure that first display device is set to PCI.

Cleanshot,
This going to be a pun but why don't you try unseating the ram and graphics card give the board a clean-shot of air and carefully re-seating all components...worth a try.

Welcome to SevenForums: You can download your manual from Asus site. Your board requires 184 pin DDR memory http://support.asus.com/download/dow...Language=en-us If you read through the memory section it will tell you which slots to use. Page 1.7 / 1.7.1 System Memory Overview/ 1.7.2 will explain memory configuration and what slots to use. (When downloading the manuals I used china as the global site always has to much traffic to download and the other is P2P.

Also on the manual page( I used Vista 32bit for your OS search) since it is the closest to Windows Seven you can also download the manufactures A8N-VM CSM Memory QVL which is what the Asus manufacture has listed as qualified memory modules for your board http://support.asus.com/download/dow...Language=en-us

I believe your board uses the AMI bios so that would be the beep codes you would be looking for.
So yes it states Conventional Extended Memory Failure. Yet it will still boots with a different card so..

Since you have stated that you have put in a "no name video card" and it boots up fine I would suspect your 8400gs has probably died on you.

Their are a couple of things you can try as far as your video card goes.
1.Turn off your system, unplug it,then ground yourself by touching the side of the case before removing the card. Once it is removed use a can of compressed air to blow out the slot and the cards heatsink and fan.If your card requires additional power from your power supply make sure you plug it back in.

2. re-install the card reversing the above directions.
See if your system will boot.

If your system boots up then you still might want to test your memory using memtest86 to test your memory for any errors.
You can download it here http://www.memtest86.com/download.html You will have to burn the ISO to a CD let it run at least 5-7 passes. This will check to see if you have a memory problem once that stick has run then remove it and put in your other stick and run the test on it.

I think it is good idea to download your manual and read through it, You will find what memory your boards manufacturer recommends and which slots to populate in order to run dual channel or just avoid a no boot situation due to not having your memory in the proper slots.

My real thinking is that your video card has just died on you since a different one booted up fine. Cards die their is no real rhyme or reason they just do.

You could try it in a friends system or if you have another system try it in it. If it won't boot then you've pretty much found your problem.
Hope this is helpful and not to confusing. Fabe

Excellent advice thefabe, also if your getting new RAM be sure to get AMD compatible RAM.

The RAM amd motherboard sites are filled with issues trying to get Intel optimized RAM to run on AMD motherboards, find RAM that clearly states it's for AMD motherboards.