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5870 problem [POSSIBLY SOLVED]

I didnt even know such thing existed lol. The cable is fine because if i plug it into my 5670, I get display everytime.
 
Guys if it really is RAM timings and voltage, would my pc still boot up like it normally would but would cause the graphics card to not display and power up properly?
 
If the machine will power up every time guaranteed with the other supply then thats where I would be pointing my finger. As said earlier voltages to memory and other components can cause this sort of behaviour but tbh after looking at all these things its looking less and less likely to be an issue.

Now corsair supplys are good, there is no getting away from that, but thats not to say that you don't get the occasional duff supply that doesn't perform as expected.
 
Hmmm well i tried my 6 pin pci cables again using just 1 modular cable with the split 2 x 6pins and its worked now. Powered up first time but i had to wait awhile before turning the computer on as in wait a few mins. I didn't need to turn off the power supply and wait for motherboard light to go out. But i know for a fact if i reboot now it will not work.


I'm starting to think it maybe a voltage problem being delivered across the motherboard and memory? Maybe the psu isnt compatible with my setup hence why changing psu fixed it even if it was a less stable and cheaper psu.
 
Jay85 said:
Hmmm well i tried my 6 pin pci cables again using just 1 modular cable with the split 2 x 6pins and its worked now. Powered up first time but i had to wait awhile before turning the computer on as in wait a few mins. I didn't need to turn off the power supply and wait for motherboard light to go out. But i know for a fact if i reboot now it will not work.


I'm starting to think it maybe a voltage problem being delivered across the motherboard and memory? Maybe the psu isnt compatible with my setup hence why changing psu fixed it even if it was a less stable and cheaper psu.
Click to expand...

Could it be that you are using the wrong modular 6 pin, I vaguly recall a post some time ago about similar problems, in that instance the guy was using the 6 pin for the main board as opposed to the one for vid. Have a look and see if you have another modular 6 pin cable (is well worth a try).
 
Nah i dont Vince, i only have 2 which are used for SLI or crossfire.


Im really starting to think its my motherboard not pushing enough power across to the pci-e slot for it to work everything including the memory. I remember you saying that there was an issue with my particular motherboard with instability.


I have had a look at the revision of my board and its a revision X.0x meaning nothing to me lol but im guessing its unrecognisable. The chipset is a revision 0 though.


If indeed there are voltage problems with the board then i think changing the board will sort this problem out. But what i have decided to do is to take it to a local IT shop for diagnostics, the same place i took the 5870 to be tested. Hopefully he will be able to shed more light on this matter.
 
Thats a shame mate, I was holding out hight hopes with that one. I would say its power supply related rather than any other hardware, I guess the best place to be with this is a PC shop that has all the spare components so they can swap them out one at a time and see where the issue lies.

It's horrible when this happens though and I feel for you even if it is a minor (ish) issue, as you say once it is going its a beast - Good luck at the shop mate and don't let them talk you into any costly work just for the sake of it.
 
This sounds like a similar problem I had on my old system which had an Creative X-Fi Gamer sound card. When I booted the computer from cold the sound card would work fine but if I had to reset/reboot the PC for a Windows update for example the sound card would cease to work the next time Windows had booted. However if I simply shutdown the PC rather then rebooted and booted again the sound card would work fine. So the situation was

Reboot – sound card wouldn’t work
Shut down – sound worked every time

It turned out the capacitors on either the PSU or more likely the sound card didn’t clear down properly from the reboot as a charge was still being held in them. You might want to try just shutting down your PC then booting it again rather then rebooting.
 
VinceB1 said:
Thats a shame mate, I was holding out hight hopes with that one. I would say its power supply related rather than any other hardware, I guess the best place to be with this is a PC shop that has all the spare components so they can swap them out one at a time and see where the issue lies.

It's horrible when this happens though and I feel for you even if it is a minor (ish) issue, as you say once it is going its a beast - Good luck at the shop mate and don't let them talk you into any costly work just for the sake of it.
Click to expand...


Thanks man, i really hope its just the power supply and capacitors within thats causing the problem like freddit has said below because the charge hasn't cleared which is why when sometimes i boot up or restart my pc i get nothing through the graphics card. Would explain a lot of things but we'll see on monday when i get it sent in.

Freddie1980 said:
This sounds like a similar problem I had on my old system which had an Creative X-Fi Gamer sound card. When I booted the computer from cold the sound card would work fine but if I had to reset/reboot the PC for a Windows update for example the sound card would cease to work the next time Windows had booted. However if I simply shutdown the PC rather then rebooted and booted again the sound card would work fine. So the situation was

Reboot – sound card wouldn’t work
Shut down – sound worked every time

It turned out the capacitors on either the PSU or more likely the sound card didn’t clear down properly from the reboot as a charge was still being held in them. You might want to try just shutting down your PC then booting it again rather then rebooting.
Click to expand...

The situation you describe there sounds remarkably like mine, it really does sound like psu capacitors not clearing properly and therefore on restarts i get no graphics card power up and the fan just spins on the card but if i boot up after waiting a few mins from shutting it down it will work fine.

Fingers crossed its the psu.



Will it be safe to run it as it is now with the psu i have provided i dont restart the pc? Or is it safest to leave it out for now and run without a graphics card?
 
It does look like a PSU issue, I wouldn't have thought it's going to cause any damage to your components (good PSU's like yours have lots of protection built in to prevent this from happening). You can either learn to live with you PSU's disability or get it replaced/repaired, when I had the problem with my sound card I choose the former, learning to shut down rather then reboot wasn't that big a deal but if you have to wait a while first I think in your case you would be better off getting it RMA'd.

If you do get it RMA'd make sure you give detailed feedback about the problem and DON'T mention capacitors let the repairers work it out.
 
Well the plan is at the moment is to take my rig to my local IT shop and ask him to just try it with a different psu. If it works fine then we'll knowstraight away itsmy psu with the disability.
 
sounds like the best thing to do :) that way if it is faulty you can buy a new one right away and then rma the one with the problem, selling the replacement they send should cover most of the costs if you get a good price for it
 
Agreed mate, I'm not sure what replacement psu to buy though. Should I get a non modular corsair next or try a different company? What wattage would you recommend for future proof?
 
Seasonic Gold Series for me are the most desirable PSU's on the market but really anything from Enermax, Corsair, Antec and you will be fine to be fair I think you have just been unlucky.
 
I'll see what the shop has on offer and pick up a decent one hopefully.

By the way, if i turn off the power via the psu switch and hit the power button on my case are the fans supposed to spin up for a second then die? Is this just left over power on my motherboard?

Thanks
 
Opened up Driver Sweeper just now and found these on my computer... Mines a AMD chipset right with the M4A785T-M motherboard so why do i have Nvidia Chipset drivers on my system? Is it safe to clear them?

Nvidiachipsetdrivers.jpg
 
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