ATI Radeon HD 5550:First boot-no screen

May 8, 2011 at 22:55:26
Specs: Windows 7, 4Gb
I'm using an ATI Radeon HD5550 on a Gigabyte EP45-UD3. When I first boot I hear a few 'clicks' and the Monitor(ViewSonic) power light turns Amber- Black Screen. When I reboot everything works OK. Any thoughts?? It's been working fine until a few days ago.

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#1
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#2
May 9, 2011 at 22:39:39
Hi linux731. Thanks for the reply, I have reinstalled the drivers, even updated ones with no luck. The problem always occurs at first boot in the morning (Cold).If I shut down for say 15 mins and restart (Warm) it will usualy start OK.

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#3
May 10, 2011 at 01:12:46
If you have not already maybe try reseating the video card. Sounds like a bad connection.

Likely


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#4
May 10, 2011 at 01:52:53
You may want to check the motherboard battery.

If it is dead, the bios settings get lost after shutdown when the capacitors discharge to the last charge. Therefore, at every cold bootup, the bios tries to re-enumerate the hardware, possibly re-arranging IRQs and all.

When you restart, capacitors recharge and gain enough power for bios to hold hardware data in CMOS memory.

Just an idea.

CoolGuy


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#5
May 10, 2011 at 23:35:49
Thanks for the input 'likelystory' - yep the board has been cleaned and reset. It's a bit of a puzzle.

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#6
May 10, 2011 at 23:41:22
Hi suatcini. Thanks for the advice. I got fed up and took it to a service centre. Worked fine in the workshop. They think it may be the Monitor, I'm taking that in tomorrow, will let you know of outcome. Thanks again.

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#7
May 11, 2011 at 05:14:22
Thanks for the feedback.

The monitor should not create such a problem. It works or it does not work. But you say it always works on every second bootup. That is a hot bootup. So the failure should lie somewhere else.

I have a similar problem in my new PC. But mine happens very rarely on Asus M/B P7P55D and Radeon HD5770 irregardless of monitor. I have tested it with several monitors, old and new. Therefore, this experience of mine may tell you something.

The new components are very picky, I guess. Previously, I had cold boot failure at every 8 to 10 bootups. After several bios updates, now cold boot failure rate is greatly reduced to a level which does not disturb me. My cold boot failure is due to the graphics card. I know it because there are four LEDs on the motherboard. One LED is for CPU, the others for RAM, gfx card and boot device. When my PC cannot boot, it is always the LED for gfx card that shines red till I turn my PC off with the case power switch and turn it back on.

CoolGuy


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