Asus mobo problem getting graphics card output after oc attempts

BassPwr

BassPwr

BassPwr

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Asus mobo problem getting graphics card output after oc attempts-

Hi there,

My specs are in my sig, I've been trying out the jumperfree ai overclock options in the bios for my motherboard asus p5n-d. There are various % options you can choose which some of you are familiar with. I was trying to see what setting was most stable but booting with one of the options seemed unstable and usually resulted in a failed boot (nothing on screen but hard drive light constantly lit) rebooting resulted in a post msg saying previous boot had failed enter bios to reset defaults or press f1 to continue. On trying one of these settings, think it was 10% well now I cannot get anything on screen at all. It's like my graphics card wont power up fast enough to show screen output for the post, because when I power on the pc, my graphics card fan starts a few seconds later compared to the rest of the system. Hard drive light stays constantly lit, but no output on screen, rebooting results in the same thing.

I tried doing the reseting cmos to defaults method where you unplug, remove battery, do the jumper and back again, battery back. But no joy, same behaviour

I don't see why attempting the ai overclock feature will have resulted in my graphics card powering on too late.

I don't understand this, I'm not an overclocking expert, I was only testing the option to see what improvement I got in gta4, it did bring a nice improvement when I did try it.

anyone help? is this a sign of permanent mobo damage?
 
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id tap the button u use to get into the bios constantly on startup this way it will take you to the bios and hopefully give you a picture
 
The Asus software o'clocking is rubbish imo.

Got an Asus Maximus Formula board here and with Ai overclocking in bios it would not even post on any of the settings , "failed overclock" etc... , yet manually i can run my Q6600 at 4.ghz.

If its just a small 10% boost you are after , just manually raise the fsb , most* chips will do 10% without need for other changes.

(*A wild claim :D, but i've never had any cpu that wouldn't do 10%+ on stock )
 
Thank you for your responses guys.

Again to be clear, I cannot enter the BIOS because nothing will come on screen, the monitor light stays in standby during the whole post. The monitor knows there's a dvi cable connection still though.

So, I cannot change anything in the bios if I cannot access it.

I tried tapping delete on startup but no joy.

The thing is, the keyboard doesn't seem to function. Caps lock light wont function for example with the power of pc turned on. There is still power to the keyboard and my mouse even with the pc powered off cause the light on my mouse is lit underneath and theres light to the special F key function on my kb. All the fans start up on the pc, graphics card fan seems a tiny bit later than the rest, can't remember if this is normal behaviour or not.

I did not use the asus software on the desktop to try the ai overclock functions, I did it directly through the bios. I did get it working, but most of the time it was unstable and failed to go through. This sounds weird but I had disabled speedstep, C1 I think too. But CPU-Z and realtemp would not display the higher cpu speed, the only way I saw it was by loading up the windows xp system box which lists your cpu speed and other details. I also saw it at the start during post.

This motherboard claims to have C.P.R. (CPU Parameter Recall) which allows automatic resetting of the bios default settings in case the system hangs because of overclocking. This eliminates the need to clear rtc data by removing battery/jumper. Simply shut down and reboot the system and default settings will return for CPU. Obviously this automatic rescue system isn't working.

There's also crashfree bios 2 which allows you to restore original bios data from the support cd wen bios codes and data are corrupted, this protection eliminates the need to buy a replacement rom chip. I don't think I can use this if I cannot even get anything on screen - so impossible to boot from the CD.

I really don't know what to do guys, this is my main pc that has stopped working, I wish I never bothered to try asus feature and did it manually instead.

I thought about buying a cheap 8400GS to see if it's my graphics card, but I don't see why my graphics card would suddenly be faulty, the fan starts up on it still.

Can anyone help pinpoint the fault? is it the bios chip which has become corrupt? stopping graphics card output and normal post? The hard drive light stays constantly lit, I don't understand this, it's not like there's lots of hard drive activity.
 
Try a VGA lead instead of the DVI lead, as sometimes i dont get a picture via DVI until windows loads

Also the GTX not spinning up straight away is normal, both of mine do it as well :)
 
thanks, I just tried vga cable to dvi adapter, no joy.

have tried powering off and on a lot, still no joy :(

I sourced the fact the hard drive activity light staying lit was because of my dvd rom drive being connected/powered. With or without a disc in the drive.
 
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BTW if you are removing the battery (for only a short time) then jumping the CMOS - it won't reset... you need to power off the PC with the battery still in, close the jumpers for a couple of seconds and then reconnect the power and start up (you need the power from the battery to perform the clear via jumpers)... to clear the CMOS by taking out the battery you need to remove the battery for atleast 30 seconds to be sure possibly longer - in some cases it can take 3 minutes or more.
 
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Thanks for your advice.

I just had the battery removed and the jumper on clear for 1 hour, also tried your method, screen is not getting any output still but the system is running - so same as before, grrr.

Also like to add the battery is healthy, reports green in a battery tester.
 
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Its starting to sound like your gfx card is the problem :(

Can't imagine the o/clock did anything to it though , anyway of testing it on a different machine ?
 
I have my eyes on a cheap Nvidia 8400GS pci-e so I can rule out the graphics card, any idea if vram makes any difference to using it as a possible physx card in future? you can get a 256mb or 512mb version of the 8400GS.

I could rule out the graphics card by building a pc out of my old msi mobo which is pci-e, have an amd cpu i can fit to it.
 
ok, done some testing.

It's not the psu, it's not the graphics card, and it's not the ram.

So it has to be the cpu or the motherboard.

I had read about my cpu being fine for ocing up to 4ghz, so I thought a little oc would be fine. I think the ai overclock options were 5%, 10%, 15% and 20% .. I chose 20% first which resulted in a blue screen during boot. 15% got me to windows but resulted in gta4 crashing to desktop. 10% i think was stable. I know you're supposed to start small and work your way up. I have to add each time I made a change in % it didn't seem to go through properly the first time. Resulting in the no post effect, rebooting brought me back to post on screen. But now I'm stuck with the no post effect with no correction by the motherboard.

I made an error when doing these overclocks, the multiplier was left at x6 when it should be set at x9 for the overclock on cpu speed to function correctly, now explains my strange speeds as reported by cpu z.

I don't believe my cpu has fried because of this, it must be the motherboard bios chip at fault? corrupt? unable to correct itself?

can I rma it to get it repaired/replaced?

I'm never touching asus auto oc settings again, manual is the way to go :o

In the manual for the p5n-d it says to disconnect power cable, take out the battery, move the jumper to 2-3 for a few seconds and put back, put back battery, power cable back on, and it should have cleared the bios settings.

I have read that sometimes it can take a lot longer to clear it, so I'm going to try about 12 hours to make sure. If there's no joy after that, time to return it I think for repair/replacement.
 
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The only way I can see for you to solve this is as you started doing with swapping components in and out, dont just move them into a new system and test them in that to make sure they're working, swap components into this system too. Also dont forget to check PSU, the system I just built I ordered all parts new, put it together and tried to boot, wasnt getting anywhere, anyway cut a long story short even though the lights on MB were lighting up it was faulty PSU, so dont forget to check this, it could have died, it may still be supplying enough power for initial fan spins but not enough for full boot. Its a long and tedious process, and if your old system doesnt have all the right connections/sockets to swap you components you could try asking a mate nicely (very nicely) to lend you his for a day. I dont know about RMA but I believe as soon as you start OC'ing it invalidates warranty, even though they do provide the OC features, thats why theres always big warnings everywhere before you start OC'ing
 
Ok you mentioned again about removing the battery and shorting the cmos clear.

steps to follow:
1) turn pc off at the plug
2) take out all ram appart from 1 left in slot 1.
3) reseat the graphics card (just to rule that out)
4) remove everything not needed ie, cdrom, sound card?, only leave boot disk connected and your graphics card.
4b) (edit missed a step) unplug and re-plug in all power connectors.
5) Do NOT remove the battery!! (not a step to do something really but a reminder)
6) short the CMOS clear pins
7) wait 30seconds
8) clear the CMOS short pins (ie set the jumped back to default)
9) plug pc back in and try and get into bios cross fingers hope for screen output.

10) if that works plug thing back in one at a time (with pc off of course)
 
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after 8 or so hours with the battery out and jumper set, still no screen output/post screen.

95thrifles, the fact the other msi system starts up fine points to the graphics card being ok. I did try another psu on that system, and also the same psu on my asus system which results in same behaviour of no screen output. To be sure I tried the hiper psu on the msi setup too and it started fine. I have 4 sticks of geil ram to test with, it's not the ram. The mobo bios must be corrupted somehow on the asus due to repeated reboots during ai overclock attempts.

Gunda, thanks for your guide. I believe I already tried that method, but tried it again.. still no screen output/post screen. The monitor just stays in standby mode - the lights are on but nobody is home.

last thing I will try is trying to power it up outside the case.

Do you think asus will refuse to repair/replace and will find out what is wrong because of attempted ai overclock? i cant really afford to buy another mobo, can't believe this ****.
 
time to rma the motherboard. no bios changes "should" completely destroy the motherboard, you can kill components but the MB should live on.

I don't think Asus will have an issue, how long have you had it?
 
Well the motherboard isn't totally dead, as has been said it still powers on and runs kind of. So I think it must be a problem with the bios chip.

I've posted on the support forum for my motherboard and sent asus a technical support note to see what they say.

I've only had the mobo since may 2008. Not with overclockers, but another popular online store. Not sure if I will be sending it to the store or asus.
 
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