removed agp card from my motherboard in my spare pc tower because i was getting no signal to my monitor, (by vga con) gigabyte 7vt600 rz board.so to test tried in daughters still no signal replaced her original card everything ok what i need to know is could this be an indication as to the condition of my card ie....do i need to replace or is it not as simple as that.
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proberly corrupt drivers (its the only nvivda/geforce flaw in their cards - their drivers their hardware is usually fine.
reset the bios (by the battery)
then the monitor should come on
then install your geforce drivers.
Drivers - Download NVIDIA DriversLast edited by Reapers; 31 December, 2009, 19:43. -
correct me if iam wrong, but are you telling this guy to reflash a new bios ?
he should be able to make any changes relating to the video display in the current bios, messing with the bios is a very dangerous thing for people that dont know what they are doing.
but maybe you mean something else, so i wont get on my high horse just now,
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swapping it out into another computer verifies that ts not a software problem
If your sticking it into another machine and getting absoloutly nothing out of it then its safe to say the card is kaput.
Your right in your assumption that its a straightforward swap, The challenge will be finding another AGP card, everythings gone all PCIe nowadays, so anything post nvidia 7900GT (i dont know the last ATI card cause the last ATI card i owned was a rage pro 8mb card) will be a newer PCIe form factor.
Ebay, possibly Ebuyer or computer fairs will be your best bet here.He who laughs last thinks slowest.Comment
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no when you remove the battery for 1 min it resets the bios to its default it would be same version
thats all thompson no need to update or flash bios
and chroma corrupt graphics drivers cause no signal on any monitor because its same card same comp just different monitor.Last edited by Reapers; 1 January, 2010, 18:24.Comment
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sorry i couldnt get back earlier,tried the batt dont work. my pc will boot with said graph card but only if i keep pressing reset button, then will boot after a few times .... a bit hit and miss.Comment
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will try to get another graph card, will post back then.Comment
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Not at all, no drivers are even loaded before the operating system, the POST runs purely via the hardware framebuffer using a few simple assembly calls to control the RAMDAC directly via interrupts (allowing 640x480 4bit VGA mode only) This is achived by int 10h calls
Specificaly:
mov al , 03h
mov ah, 0
int 10h
to set up a screen to 80x25 text mode without a driver or even an operating system. (alternatively you can use 00h for 40x25 text mode instead of 03h)
If its a non starter on both systems you can definately rule out software errors like drivers, because everything is happening at that point as illustrated with direct hardware communication, its also outputted to both the North (AGP) and South (PCI) bridges to ensure you can configure for either card type.
Its specificaly stated in the initial post that hes tried the CARD itself in two different machines, both tests presenting the same fault.
This also eliminates his bios not outputting vga, his north brige from being fried and drivers entirely from the equation, leaving only the card hardware itself as questionable.Last edited by chroma; 4 January, 2010, 03:28.He who laughs last thinks slowest.Comment
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