Re: Boot process not starting



"Paul" <nospam@xxxxxxxxxx> wrote in message news:h6c030$i0r$1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Lee Antony wrote:


I see the measurements done by Xbitlabs but I don't understand what the reference to 6-pin and 8-pin means. This card has 2 identical sockets each with 6 contacts as shown in your last image above. Is that what you mean by 2 2x3 connectors? I don't know the background to this 2x3, 2x4 terminology.

If I had paid that much money for a video card I'd be more than a little annoyed not to get any instructions on how to hook up the power. Like you say, the scrap of paper titled SpeedSetup is nonspecific and could apply to any card made since AGP was invented. There is a cd called Graphic Cards Manual but it's just pdfs about software and drivers. The driver installation shows images of ATi Catalyst's software so that's not helpful.

I think you're trying to sugar coat the conclusion that I should go out and buy the best psu that I can afford. Well ok, we don't really need any food or wine for the next 7-10 days.

Thanks for taking the time to help.
Regards Lee Antony.


I tried to do a power supply calculation, to see whether 12V1 is adequate.
I don't know all the hardware in the box, but it looks to me, like the
"3D mode power" would bring your power supply up to the limit. The
12V2 should have more room. Whether the thing will tip over or not,
really depends on the power supply design. Some in fact, don't police
the current flow level that closely at all. And then you could draw
a bit more from 12V1, since you're not drawing the max from 12V2.

What I did indicate, is you have enough power to get into the BIOS.
You may have enough power to get into Windows. The Windows desktop is
a "2D idle" situation like the BIOS. There may be a bit of power
draw, at the instant the video driver starts up, just as the Windows
desktop appears.

So what you can do, for little money, is purchase an additional
"dual Molex to 2x3 PCI Express" adapter cable. Use that to connect
up the second connector.

Not all video cards are designed exactly the same. Nvidia may design
a "reference" GTX285, and many video companies will simply copy
the PCB from Nvidia (get the design files) and use that. The only
unique part many manufacturers add, is the cooler design. And even then,
many of them are copying the same cooler, and just changing the color
logo on the front. The manufacturers may use different brands of video
RAM, so they may shave a buck or two off the manufacturing price.

Asus, on the other hand, design their own cards. And add things like
SmartDoctor, whatever that is. So there may be an additional chip or
two on the Asus card.

It is possible the Asus design uses two 2x3 connectors, instead of
a 2x3 and a 2x4. As far as I know, by design, the 2x4 reserves a
pin for presence detection. At the current flow levels involved,
it would probably be possible to do that to the 2x3 as well,
but I don't know if that is a common practice or not.

So in conclusion, you don't have to buy a new supply immediately,
just this minute. You can buy an adapter cable, and at least
see if the BIOS will appear on your monitor.

Paul

I did what you suggested and got the adapter cable. On starting up the ASrock screen appeared! I tried pressing F2 for setup and then realised the keyboard wasn't plugged in. By the time I had done that Windows was trying to load. Of course it failed with BSOD so I pressed reset. Back came the ASrock screen but then there was a total loss of power. Couldn't get any life back into the system.

Not to be beaten by such minor irritations I scurried back to the shop and asked the price of their best power supply. When I had recovered a bit from hearing the answer I asked what they would suggest to match a GTX285 and not require a mortgage. After handing over a huge amount of money I staggered home with a Zalman ZM500-HP.

I installed this weighty box (even the cables look expensive) about 10 minutes ago. I wish I could report a good result. Things appeared to power up normally with no beeps or unexpected shutdowns but there was no video signal detected.

So I have a video card that worked momentarily, perhaps destroyed the old PSU, but now seems dead except for the spinning fan.

When I've had a few beers I'll probably give up for today. I think tomorrow I'll try pulling items off the board to see if warning beeps come back and continue my search for a spare video for testing purposes.

Thanks for taking the time to help.
Regards Lee Antony.


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