Graphic Cards Sapphire X800 GTO2 woes

you may have to disable the onboard video to add another one.
there should be a option in advanced chipset Features Internal Video Mode disable this maybe it will help.
 
Sandy: I have tried all those things.

shrey: You are right. I am not left with much options and will need to try it on somebody's pc.
 
I had been running my 6800GT on a 400W ColorsIT (Actual rating of 250W, 10A on 12V line) for almost 1.5 years till I switched to NeoHE. Also if you got your ColorsIT 450W for somewhere around 1000 to 1200, then its the somewhat better quality ColorsIT which has the correct ratings printed on it. So probably we can rule out the fact that the ColorsIT PSU is not able to power it.

Then you were saying that if you plugin the card with out the power, it gives the message to connect the power. so it must not be a completely faulty card either.

So my guess is that the power cable is somehow connected in a wrong manner. check that out first. Then, if you have access to someone who has a good 450 or 500W PSU and try the card on their machine.
 
lord_nemesis: I bought the card for 1100. I have got a PCI-E power cable which has 2 molex connectors (which connect to the PSU molex connectors) and a 12v 6 pin connector (which goes to the GPU). I don't know if I have to do something special to connect those? I just plug them in.

I don't know anyone who's having a good PSU that is what I am looking for if someone can help in that regard then it would really be great.
 
By any chance are u connecting both molex to the PSU...? I think it requires only one molex. the power cable you got will have one connector with pins inside and the second with holes. you will have to plugin the PSU molex (which as holes) into the connector with pins. leave the second connector alone.

The second molex is intended to be an extra connector to power some thing else as you were using up one of the PSU connectors. See if this solves the problem.

This is most probably the case from what you described and thats why the PC is not powering up when you gave power to the card. when you connect both connectors, it results in a short circuit and the PSU short circut safety curcuit is cutting of the power.

See this image for the right connector:

img.php
 
tarun said:
lord_nemesis: I bought the card for 1100. I have got a PCI-E power cable which has 2 molex connectors (which connect to the PSU molex connectors) and a 12v 6 pin connector (which goes to the GPU). I don't know if I have to do something special to connect those? I just plug them in.

I don't know anyone who's having a good PSU that is what I am looking for if someone can help in that regard then it would really be great.
Click to expand...

lord nemesis said:
lol.. He is talking about the PSU
Click to expand...

hmm ok....I thought so..... was just wondering. Coz if he did buy the card for 1100, that means he bought a dead card coz no one would sell a working X800 GTO2 for so less..... And I thought if it was a dead card, it obviously would not work.

Anyway good that you clarified.
 
Sorry for the typo. I bought the PSU for 1100.

lord_nemisis: I didn't get the power cable with the card as it was the OEM version. So I bought a power cable separately which has 2 molex connectors with pins and one 6 pin connector which goes to the GPU. I am connecting 2 PSU molex to both of the molex connectors of GPU power cable (they both have pins).

This is what I have:
http://us.st11.yimg.com/us.st.yimg.com/I/directron_1905_552957508

Switch: Thanks. I have sent you a PM.
 
I think you will need power from only one of the molex connectors as even the X850XT PE takes only one molex connector. I also read somewhere that X800GTO2 does not use all the pins of the PCIe power connector which I think has 3 x 12v and 3 x GND. Cant find the link now. Also the image of the cable I gave is the original power connector of the sapphire X800GTO2 and it requires only 1 molex connector to be connected. Anyway let switch have a look at it and he will figure out whats wrong.
 
lord_nemesis said:
By any chance are u connecting both molex to the PSU...? I think it requires only one molex. the power cable you got will have one connector with pins inside and the second with holes. you will have to plugin the PSU molex (which as holes) into the connector with pins. leave the second connector alone.

The second molex is intended to be an extra connector to power some thing else as you were using up one of the PSU connectors. See if this solves the problem.

This is most probably the case from what you described and thats why the PC is not powering up when you gave power to the card. when you connect both connectors, it results in a short circuit and the PSU short circut safety curcuit is cutting of the power.

See this image for the right connector:

img.php
Click to expand...

My Lord !!! you are utterly confused.
How can there be any "Short Circuit" , when the 12V rail will never touch the ground wire .

Tarun has failed to give important info. regarding whether any other low -powered gfx card , pci-e works in his setup and he has never mentioned whether the card started at all at his dealer's place when he bought the new psu ....
Without proper inputs it s very difficult to give probable cause (s) of the problem and the appropiate solutions.
 
deejay: I bought this card online when I was in UK so I haven't tested it yet otherwise I would have stated that in the post. I bought the PSU from Nehru Place in Delhi.

I have not tested any other PCI-E in my setup.
 
deejay said:
My Lord !!! you are utterly confused.
How can there be any "Short Circuit" , when the 12V rail will never touch the ground wire .

Tarun has failed to give important info. regarding whether any other low -powered gfx card , pci-e works in his setup and he has never mentioned whether the card started at all at his dealer's place when he bought the new psu ....
Without proper inputs it s very difficult to give probable cause (s) of the problem and the appropiate solutions.
Click to expand...
oh yeah, my mistake...:ashamed:

With the orginal cable that came with the card it would probably have resulted in double the current going to the GPU and not in a shortcurcuit.

anyway he is using a different kind of cable..:)
 
Has the card worked at all ??

And it would be better if you replace the colorsit psu to power this gem of a card. the colorsit psu's have a very bad input filtering of spikes in the mains supply line. as a consequence of which the main input capacitor(s) get weak very soon leading to very less current (AMP) being suppled to the system. The voltages will show normal values but the total current supply is drastically reduced. This gives a very intermittent startup problems ....
The above is not the cause of ur problem, it is general info. for the members.

it would be better if you take ur card to a known good system and test it for e.g. switch's place.
if it works in that system then we would have isolated the problem to your setup (excluding the gfx card).

if the problem remains then there is a short in the graphics card (12V input side , mostly the switching transistors ) and it would be wise to send it for RMA
anyways awaiting ur feedback before commenting any further ......

PS: Recheck ur pci-e power cable connection ....
 
deejay: Thanks for the comments. I haven't been able to test the card as yet. Although I feel that it is not the problem with the card because if I don't supply the power to the card then it displays an error on the screen saying that power should be connected for the card to work.

lord_nemesis has said that gto2 takes a different power cable then the one I have. I don't know if that is the problem.

I am waiting for Switch's reply so that I can test the card at his place.
 
The cable which you have is much better and preferred one. since the power to the card is "Shared" between 2 different psu molex , effectively lowering the the load on any one molex. i.e. the power to the card is "shared" between 2 12V lines /wires, which is always better and helpful , if you are going to o/c the card in future ....(i know right now o/c'ing is least of your worries ....hehe)

The psu molex's that you are connecting to this cable .....is any other device(s) attached to them or is it coming straight from the psu ??
if there are other devices i suggest you remove them.

EDIT: Also check whether there is good contact between the psu moles (female) and the molex on the pci-e cable (male). especially recheck the yellow wire contacts on the pci-e cable side....is it slightly coming out of its plastic covering ?? this is a frequent problem i have come across especially while connecting case fans....

oops another Edit:
Tarun said:
Although I feel that it is not the problem with the card because if I don't supply the power to the card then it displays an error on the screen saying that power should be connected for the card to work.
Click to expand...

The circuit or part of the card which detects this and displays on the screen is not dependent on the 12V supply from the pci-e cable. the power to detect this is obtained from the pci-e bus itself. (which can supply upto 72W of 12V).
as i have mentioned previously nothing is wrong with the gpu core ....the problem "could" be in the power input section (pci-e , 12V) of the card.
 
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