I have disconnected everything except for the memory and AGP card (no on-board graphics). I started it once before and it booted fine, but then I installed everything back and it wouldn't boot. I unistalled everything again, reset the power supply and now it won't boot, no beeps, no monitor signal. That's where I'm at. Now what?
Try removing all memory except one board. If it does not come up switch boards. Still no luck, check power supply if you can or switch it with another. A power supply checker is pretty cheap, 10 to 15 dollars, and well worth the investment, although it is not foolproof. Try switching PS off, physically remove the BIOS backup battery, then replace it and try again. That should have cleared the BIOS back to factory defaults. It sounds like a memory problem, but as a last resort, you might reseat the CPU. The CPU fan runs, yes? Can you get some other memory to try? Well good luck!
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Hi, You should get one bios beep. You seemed to have tried everything except a different hard drive. Check the capacitors to see if they busted open. Other than that the motherboard could be fried. Hank
Check the power supply if its giving the correct voltage on the mother board.
I know you're going to say it have power, but sometime it happens, It happend to me once, there was power and everything check everything and its working fine but when i put it back together nothing's seem to be working. I swap the power supply and bingo.
I'm not exactly sure what you are explaining but to disable in Windows go to: My computer: Properties: Hardware: Device Mgr: Graphics Card and for the one listed that is not your AGP card click: Disable This Device. It's just that simple. Also, in some BIOS,maybe all, there is an AGP: enable/disable box. This of course should be enabled.
If you installed an AGP graphics card before your fist boot of the system, you will not receive display. By default the onboard graphics is set to boot display. (If this is the case, remove the AGP graphics card & boot the system). The Asus P4SGX-MX can only use a 4x AGP 1.5volt (only) card. There is an order of sequences to perform before installing/ adding an AGP graphics card on to the board when the board also uses an integrated graphics card. First, shut down the system & unplug the power supply from the PC. Connect your monitor to the VGA port at the rear of the board. Remove the AGP card. Re-connect the power supply & boot the system. You should have display? Re-boot the system. As the system starts up press the delete key on the keyboard every 2 seconds. The bios main menu will load. (Open your manual). Go to section 2.4.3, page 2-20 under Advanced, PCI configuration. Set Primary VGA bios to [AGP VGA Card]. Save the bios & exit. The system will auto restart. Press & hold the power on/ off button on the PC case until the system shuts off. Unplug the power cord from the PC. Insert the AGP card into the AGP slot. Connect your monitor to the AGP card. Check all internal data & power cables, (Incase something came loose). Re-connect the power cord & boot the system. You should have display! Install your video software. If your using the integrated VGA PCI graphics card, go over the bios settings page 2-18 & 2-20.
If your new video card has a power connector, make sure it is connected to a power plug. If you already did that, it's possible your PC's power supply doesn't have enough power to run all your connected equipment.
To get your old card running, hit F8 repeatedly during boot-up until you get the boot options. Select VGA mode. It should boot up properly then.
Once booted into VGA mode, set your screen resolution to something simple like 1024x768 or 800x600, then reboot.
If that doesn't work, try hitting F5 repeatedly during boot-up to boot into Safe mode. You can then adjust your settings again there.
Don't boot with the monitor connected to the card. You need to let it boot into windows and install the drivers for it first. Once you do that,shutdown and restart with the monitor plugged into it and it should work.
Assuming you have already installed the AGP driver for the motherboard, you will have to start the pc in safe mode (F8) on boot up, to start in VGA mode only and see if the graphics are ok.
If it boots into VGA mode then the card itself is ok, but the card driver and agp motherboard driver, if not already; will need to be installed at this point because im assuming you were not able as you were getting the fault on screen.
Are you certain that your AGP card is 4x or 8x? It seems that is the only kind this one supports. Not sure what the 2 beeps mean in post but it obviously doesn't like your AGP card. Report this info to MB customer support. There do not appear to be any jumpers to manually disable on-board AGP as it is done through BIOS settings only. Also, you might want to first install the AGP drivers using the onboard gfx and then install the Gfx card.
As for the memory, I have no idea. Perhaps you could contact the manufacturer or return the MB to fry's for a replacement?