Epox 8RDA+, High FSB and GFX cards.

[Walrusbonzo]

Over at AOA Forums a few of us have noted a problem when overclocking the FSB when using GFX Cards such as the GF3. The problem is in reverse too, in that we find it hard overclocking the GFX card.

It's an interesting read for everyone who wants to know why they can't get super high FSBs.

http://www.aoaforums.com/forum/showt...865#post154865

Anyone want to share their thoughts?

[Walrusbonzo]

I'm surprised that no one has replied to this thread. If you read everythig through you'd realise that I was saying that if you use a GFX card that draws power from the PSU then you'll get much higher FSB speeds.

Maybe all you REAL FSB clockers want to look into getting a Radeon 9700

[WesM63]

9700 are nice, but in a kt333 board and kt400 board it's not possable to go much above 190Fsb because of the high agp speeds. Althou nforce2 boards should be allright becaue of their locked pci agp speeds.

[Professor12]

Yeah i have noticed this when oc'ing my GF 4 4400. I used to be able to easily get 650 on the mem (on an old dell with NO ventilation). However, when i stuck it in my epox 8rda+ and tried to oc it i can't do above 625 and with the vdd mod i can't get over 212 reliably.

[Walrusbonzo]

Professor: If you were to get a Radeon 9700 or 9500 I'm 100% certain that you'd get higher FSBs, as long as your RAM handles it.

[Walrusbonzo]

WesM63: Even with AGP locked at 66MHz the GFX card still draws power over the AGP bus. The NB and AGP share power sources, I believe, and Epox techs said it too.

So basically power hungry GFX cards such as GF3 and GF4 are capping peoples FSB on their 8RDA+ lower than what they'd be able to get with a not so power hungry card, or a card which draws power from the PSU such as the Radeon 9700 or 9500.

[felix88]

i wonder if it would be possable(or worth the trouble) to modify an older video card so you can plug your PSU into it.