Saved Bookmarks
| 1. |
Solve : Will a AGP 8X card work in a 4X slot?? |
|
Answer» I have a PC which I want to upgrade. The specs are: It will run at 4X....Voltages were automatically adjusted by the motherboard. As I recall, a resistor on the AGP card. Yes, there are two voltages and some other voltage difference on the signals. All taken care of automatically by the motherboard. Learned this on a motherboard that would not support the 8x video card. We even looked at those voltages and signals with a O'scope. Found absolutely nothing wrong. However the manufacturer discontinued that AGP card only a few MONTH later - without comment. Appreciate how these CARDS are manufactured. Video manufacturer may test them on every motherboard they can find. And yet this particular video controler which worked in ANOTHER system just would not work in that system. We can only guess why it was discontinued quickly. They did not discover a signal anomaly until after in production. Tolerance for AGP signals are so tight that sometimes a perfectly good video card will not work in a perfectly good motherboard. It As long as that controller mates easily in that socket, it *should* work. well, cards that use the 1.5v spec and are installed into a older motherboard that uses 3.3v can damage the motherboard... Of course almost all 3.3v cards were keyed different from 1.5v cards, so you can't usually even physically insert the card. Regarding the motherboard that wouldn't support an 8x card; was this just one specific 8x card, or would no 8x card work in that machine? 8x is newer then 4x and likely requires different logic. Of course if other 8x cards worked fine then it was likely as you said, a signal anomoly. |
|