ATI Catalyst AGP Driver
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ATI Catalyst AGP Driver
ATI Technologies Inc
AGP problems can cause random crashes or hangs in 3D modeimmediate crashes or hangs upon entering 3D mode, image corruption, turning ATI Catalyst AGP your monitor, freezing your computer, and just about anything else you can think ATI Catalyst AGP that involves a video card. AGP causes problems most often in 3D mode but it can sometimes get into trouble in 2D mode. On most computers, it works fine.
But a surprisingly large number of computers have unreliable AGP ports.
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If you are seeing just about any kind of reliability problem which could possibly involve an AGP card, you should always try to slow down your AGP port to see if it solves the problem. The reason that full speed AGP and fast writes tend to be flakey ATI Catalyst AGP because they are transfering data like a bat-outta-hell.
ATI Catalyst AGP, that's pushing the envelope, electronically speaking, if you're talking about low-budget consumer hardware where they're trying to shave every nickel off of their bill of materials.
If ATI Catalyst AGP ever seen high-speed scope traces of that data, it ain't exactly perfect ones and zeroes. If your board is laid out and decoupled properly, and the CPU, northbridge, and GPU are all nice and cool, and the power supply is keeping the rails relatively smooth, then it probably works just fine.
But if any one of those links in the chain is a little weak, then you've got problems. There two main things you can adjust to try to stabilize your ATI Catalyst AGP slot are: If you have an overclocker motherboard then you can probably also increase the AGP signaling voltage.
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Technically, there are many more AGP adjustment tricks, but those are the main ones which are most likely to solve problems and most of the rest require diddling obscure options in your BIOS. By default, most AGP cards are initialized to the highest multiplier ATI Catalyst AGP by both. Unfortunately, that speed can be flakey, especially if it's 8X.
There are various programs described below which allow you to select the AGP multiplier. Just take the AGP multiplier down to the next lower speed and then test for a while to see if your problem is solved.
AMD Catalyst Legacy AGP Drivers for Windows Vista/7 bit Driver - TechSpot
If not then move down to the next multiplier. Most of the programs also allow you to disable AGP mode altogether by offering a "PCI" option sometimes called "off" when selecting multipliers.
Do not take your multiplier to a higher value. The point of this exercise is to see if ATI Catalyst AGP down your AGP port can improve stability. It's not to see if ATI Catalyst AGP can speed up your AGP port. Only use multipliers which are at or below your default multiplier. If it turns out that using a lower multiplier solves your problem, then you have to accept that it will cost you some performance to use that solution. And even cutting back to AGP 2X isn't exactly going to devastate your game performance if your video card has a fair amount of RAM on it.
And outside of games, the speed of your AGP port makes very little difference. Fast writes have acquired a fairly bad reputation.
They can be the cause of quite a lot of flakiness. On top of that, in most cases, they don't improve real-life performance by very much. If you really want to play it safe, you can just disable them and forget ATI Catalyst AGP.
My opinion is that if fast writes are currently enabled then you should leave them alone while you try reducing the AGP multiplier. Fast writes transfer data at the ATI Catalyst AGP speed as the AGP multiplier so if fast writes are flakey, there's a good chance that the real cause is that your AGP multiplier is too high.
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Once you lower the AGP multiplier, fast writes may start working properly. If fast writes are disabled by default, then don't try enabling them. They may be off for a good reason. If your fast writes are currently enabled and your problem isn't solved by trying the slower multipliers, then disable fast writes ATI Catalyst AGP run through the multipliers starting at your default multiplier again.
In a lot of cases, lowering your AGP multiplier to a stable value will make ATI Catalyst AGP fast writes unnecessary.