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Radeon X19xx: No video signal

Forum Graphic & Displays : Graphics Cards - Radeon X19xx: No video signal

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Slava   01-21-2007 at 06:57:22 PM

Many people have had varuius problems with X19xx series of cards where they would get no signal or see their PCs lock up/crash into a blank screen.

Well I've just read this about Sapphire's Radeon X1950 Pro AGP on Firingsquad and thought everyone should keep this in mind when troubleshooting such problems:

Quote :

Fortunately as we mentioned earlier, you can daisy chain your VGA power connection, allowing you to piggyback off the power cable(s) you already use for your optical or hard disk drives, but you can’t run both Molex connectors off the same power cable.

Sapphire could have eased end user's pain by including dual power adapters inside the card’s packaging, but unfortunately only one adapter is provided. Sapphire also should have spelled this out more explicitly on the card’s packaging and inside the manual. We honestly wouldn't be surprised if quite a few perfectly good cards end up getting returned because end users didn't know this.



To clarify, since you need 30 amps to feed this card and most PSUs have less than 30 amps per one +12V rail you do need to connect two independent +12V cables to this card even if one of the cables feeds your optical drives and such...

I am gonna throw the above into every recent thread complaining about "No signal" problems. Hopefully, this will save some people some headaches.

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blade85   01-22-2007 at 01:02:00 PM
- 0 +

but but but, iv got mine of 1 cable being split into 2 8O 8O 8O


aaahhh where is the damn screw driver!


wait hang on: If mine is working fine, do i bother changing it???? Iv got a tagan 380 watt supply with I think 22A on the +12V rail. Unlike my last PSU this has a fairly thick +12V cable that says GFX, HDD on it (shielded molex). SO im just using that. The rest are the normal looking molex connectors.

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Slava   01-22-2007 at 05:35:38 PM
- 0 +

Quote :

When talking about a dual +12v rail PSU all the 4 pin molex connectors shair the same rail.



:? Umm? Have you just said that no PSU has two (or more) independent +12 rails?

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Slava   01-23-2007 at 01:00:10 AM
- 0 +

Quote :

Do not take what people say on a forum as fact.



That was from Firingsquad, not from a forum. Unless those guys are incompetent fools, I don't know. I will research the issue myself.

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