GF3 en LPF filters

[anoniem]

[quote:06a00557a0] Op 2002-01-17 18:45, schreef GeForce Mike: Ik heb dit zo is zitten lezen maar je heb hier een goed punt te pakken. Maar dan snap ik nog steeds niet dat ze op al die sites en net Edward ook weer die GeForce 3 TI 500 van Leadtek zo de hemel in prijzen qua 2d beeld kwaliteit. als de filters toch het zelfde zijn. en Slashhead heeft zijn Elsa er mee vergeleken en zag geen verschil. vreemd. :???: Slashhead je mag mijn Asus v8200 Pure wel is goed bekijken als je weer hier bent. [/quote:06a00557a0] Ik heb niet naar de Lay-out gekeken maar puur naar de weergave. Tussen Elsa en Leadtek zit geen verschil. Wel moet ik daarbij vermelden dat ik niet over een monitor beschik (Iiyama Vision Master Pro 511) met BNC aansluiting die je eigenlijk zou moeten gebruiken. Ik draai op dit moment weer met mijn eigen Elsa dus het is een beetje moeilijk scannen :grin: Maar ik kom hier nog op terug, dan maak ik ook even een scan van de Elsa, dit wordt dan wel volgende week.

[anoniem]

De meeste die de Gf3ti500 van Leadtek hebben getest vonden hem duidelijk beter. als de Filters groter zijn dan zijn ze misschien ook beter. het kan ook zo zijn dat jou Elsa gewoon ook erg goed is. met een gewwone vga kabel moet je ook wel het veschil kunnen zien denk ik.

[anoniem]

Ik heb alleen maar mijn eigen Elsa GF3 en de Leadtek GF3Ti500 en de MSI GF3Ti200. Het verschil tussen de MSI en die andere kaarten is behoolrijk duidelijk

[anoniem]

[img:97fa521ded]http://images.anandtech.com/reviews/video/DVI/gf2pro.jpg[/img:97fa521ded] In een artikel over DVI schrijft Anandtech ook het een en ander over deze LPF's [quote:97fa521ded]This Visiontek GeForce3 Ti 500 already has one column of capacitors removed (red box), so it's no surprise that it also has very good image quality. These capacitors are located near the DVI connector on the board. When you've clipped the capacitors all that should remain is what you see in the red box above. The fix is accomplished by merely clipping off the 9 capacitors using a pair of needle nose pliers; this won't harm the board if done properly. The end result depends on how bad the image quality of your card was prior to the mod. We have seen results ranging from virtually no change at all to a dramatic improvement, even on a card that had pretty crisp output to begin with. To completely remove the low pass filter, you'd want to short the inductors to bypass those as well. Our experience has shown that this considerably more complicated procedure has yielded diminishing returns once the capacitors have been removed. Again by removing this filter you are allowing higher frequencies to pass through that normally wouldn't which could cause interference with other devices, although it's highly unlikely. Why is this mod not necessary on ATI and Matrox cards? Until recently both ATI and Matrox manufactured all boards based on their chips by themselves and thus had very strict control over all component sourcing. We have yet to see whether ATI's decision to allow third party manufacturers to produce ATI graphics cards will result in the same issues end users face with image quality on NVIDIA cards. Eventually worrying about image quality loss as a result of poor RAMDACs or subpar low-pass filters will be a thing of the past and the DVI standard will help to ensure that.[/quote:97fa521ded] Bron: [url=http://www.anandtech.com/video/showdoc.html?i=1577&p=5]Anandtech[/url] _________________ Dit is mijn: [url=http://www.anandtech.com/mysystemrig.html?id=15519]Systeem[/url]--[url=http://gamershq.madonion.com/compare.shtml?2229973]3Dmark2000[/url]-- [url=http://gamershq.madonion.com/compare2k1.shtml?2143036]3Dmark2001[/url] [ Dit Bericht is bewerkt door: GeForce Mike op 2002-01-20 01:44 ]

[anoniem]

Ik heb bericht gehad van Hercules. Let even op... [b:e27c43688d]hier wordt gesproken over het Hercules GF3 en GF3Ti200 ontwerp[/b:e27c43688d]. [quote:e27c43688d] [b:e27c43688d]Q: Is the GF3Ti500 excactly the same chip as the GF3Ti200 ?[/b:e27c43688d] [b:e27c43688d]A:[/b:e27c43688d] GF3 chipset is exactly the same on GF3, GF3 Ti-200 and GF3 Ti-500, GF3 was the first manufacturing lot while GF3 Ti are a later manufacturing where the testing process was more advanced so that NVIDIA could sort the fastest (Ti-500) and the not so fast (Ti-200) chipsets. [b:e27c43688d]Q: I found an image quality difference on the GF3Ti200 and Ti500 design[/b:e27c43688d] [b:e27c43688d]A:[/b:e27c43688d] We have not found any difference in 2D between GF3 and GF3 Ti-200, so if any real difference in the same environment is found it is probably an individual exception. [b:e27c43688d]Q: What about the filters?[/b:e27c43688d] [b:e27c43688d]A:[/b:e27c43688d] About the filters: I don't consider it as an issue on the Hercules GF3 or Hercules GF3 Ti-200, but I answer in general for our experience of 3D boards design: - too slow filters connected to the VGA output have a negative impact on 2D quality in high resolution at high refresh, since they are slower than the RAMDAC. The symptom is slightly blurry display in high resolutions at high vertical refresh rate - power supply components located between the chipset RAMDAC and the VGA output, can, if they generate a high electromagnetic signal, interfere with the RGB signals wired in the PCB and would add noise in the VGA signal. The symptom is noise with unexpected dots displayed from time to time, whatever the resolution or the refresh, but mainly in 3D games since in 3D the chipset consumes more power, and so the components on board generate more interferences. [b:e27c43688d]Q: And the pics?[/b:e27c43688d] [b:e27c43688d]A:[/b:e27c43688d] The components photos on the Gf3 & Gf3 Ti-200 boards: - the condensators on Ti 200 do the same as the C806-808-809-813 components, they are capacitors (chemical on GF3 Ti-200, tantalum on Gf3), they don't generate a noticeable electromagnetic field. The difference between tantalum and chemical caps is mainly the size, tantalum caps being smaller, so that tantalum caps are used on circuits were size is critical (as mobile phone). - the "L800 and L801" black components on GF3 and the copper coil on the GF3 Ti-200 are power components, so they have a significant electromagnetic signal. The fact there are 2 such components close to the VGA connector on GF3 has driven NVIDIA to recommend using a black shield on the coils, while as there is only 1 on GF3 Ti-200, which is far from the VGA connector, this coil is used without the same black shield. Francois Garet [/quote:e27c43688d] Dit betekend dus dat MSI geen videokaarten kan maken.... :razz: _________________ "No, no, I'm not playing, I'm testing... give me that controller back... muaaaaaaa...." [ Dit Bericht is bewerkt door: Slashhead op 2002-01-21 19:27 ]