890gpa-ud3h, onboard gpu and primary card problem

[toxicseagull]

i cannot seem to get the onboard 4xxx series card to give up its stranglehold on my monitor and let my 5850 take over.

both are there in device manager, however if i disable the onboard in bios or even in device manager i cant get a signal out of my main card,

using bios fc on the motherboard and 9.12 radeon drivers, i cant install any newer as i hit the hanging on "windows starting" screen problem with the 10 series drivers. (known problem with radeon drivers)

any help apprieciated

[absic]

Hi there and welcome to the forum.

When you BOOT are you getting a signal from the 5850?

Also what revision is your motherboard?

[toxicseagull]

nope no signal on the 5850 on either of the graphics ports, although im not confident on the bios settings (new motherboard for me) on how to cut out the onboard gpu. ive tried chosing PEG as the init display (as the manual states) but i still get no signa on either of the two ports on 5850l.

mobo is 2.1 revision

thanks for your response and welcome

[absic]

In BIOS, to disable the On-Board Graphics chip you need to go to the M.I.T. section and under IGX set Internal Graphics Mode to Disabled. You can also do this through Advanced BIOS Features as the menus are synchronous. You also nee the INIT Display to be set to PEG.

Make sure that your 5850 is in the correct PCIE slot which should be the one nearest the CPU and that you have connected any power leads that the Graphics card might need. A silly thing but also make sure that you connect the lead from your monitor to the 5850 and not the On-Board graphics DVI or AGP.

Try to BOOT again and see if you are now getting a signal to the Monitor from the 5850.

[toxicseagull]

hi, i have tried that but get no response from the 5850, all in the correct slots and lead is in the correct area. ive replaced it with my old 8800gtx and on the same mobo settings it displays perfectly fine. could it just be the cards ports that are faulty? as i think that rules out a mobo problem

thanks again for your help and quick responses

[absic]

It seems as if it could be a faulty graphics card and some of the higher 5 series have been causing a few issue.

As a matter of interest what PSU are you running as sometimes this can be the problem?

[toxicseagull]

550W enermax, i wouldnt think thats the problem as it runs the older and more power hungry 8800gtx perfectly fine.

thank you for the confirmation on the graphics card tho, i will try and RMA it for a nvidia

cheers for the quick responses

[absic]

It could just be that your PSU is not giving enough initial grunt for the 5850. I know it sounds funny, but this has proven to be the case in a lot of instances.

[toxicseagull]

hmmm that does sound strange, would that be the case in the bios as well? surely the power demand isnt high then?

[Dark Mantis]

Yes I agree with absic. A lot of these newer cards need a tremenous boost to start with, that is one of the reasons why I always extoll the virtues of single 12v rail PSUs. They can handle it better than some of the multi-rail ones.

[toxicseagull]

hokey i'll give that a go, thank you very much.

so that would allow the gpu to be shown in windows but not actually kick it up to start providing a picture?

[absic]

AMD recommends that a 500 Watt or greater power supply with two 75W 6-pin PCI Express® power connectors be used. Your current PSU is only 50 Watts above this minimum which doesn't leave you much headroom. And, if it is not new, there is a strong possibility that it isn't working as well as it used to.

As I said earlier, it does seem as if the Graphics card is faulty and I asked about the PSU as another possibility. The fact that it is showing in Windows would seem to indicate that it is getting power and I would think RMA'ing the 5850 would be the best option.

[toxicseagull]

aye cheers was just trying to understand it a bit, im going to rma the card either way as the new driver issue is a killer as well. thanks for all your help

[absic]

Yes I understand your frustration but have been using the 10.8 drivers without a problem and, to be honest, you might have more issues with NVidia. I would recommend sticking with ATI, especially on the AMD platform as there are normally a lot less issues with them.

[Dark Mantis]

Again I would back up what absic said and stick with the ATI cards. Even though I run an Intel platform I still prefer the Radeons for stability.