Desktop does not boot and crashes frequently

January 2, 2012 at 01:24:12
Specs: Windows 7 Home Premium, Intel Core2 Duo/2GB Ram
Hi,

I am facing two problems on my Dell Inspiron 560s (possibly related)

1. The computer sometimes does not boot. Infact it does not even get to the BIOS screen. Once I switch on the power button, it just stays there - no BIOS, no POST nothing - Just a blank screen.

2. I got past this problem by unseating/reseating the memory cards. System boots up, but relapses into the same behavior as point# 1 in probably 10-15 days time.

3. After the memory reseat process, when I boot up Win 7, it frequently freezes/crashes with a video scheduler error. The system has an ATI Radeon card for which I reinstalled the drivers. As a last resort I have even reinstalled the system. However the crash/freeze cycle continues, even after the reinstall.

Are these two problems related? Does it indicate there is something wrong with the memory or the video card? Any help is greatly appreciated.

My system specs are as follows:

Model: Dell Inspiron 560S
Processor: Intel Core2 Duo
Memory: 2GB DDR3
Video Card: ATI Radeon


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#1
January 2, 2012 at 02:04:07
The 560s ( Small Form Factor) has only a 250W powersupply and your system appears to have the optional ATI HD4200 PCIe graphics card.

I'm not sure what kind of power drain that card will place on the system but it would not surprise me if the powersupply is suffering a partial failure.
The complete failure to boot coupled with intermittent shutdowns may be a sign of faulty PSU.

Goin' Fishin' (Some day)


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#2
January 2, 2012 at 02:31:36
Hi Richard59,

Thanks for your reply. I will definitely try troubleshooting from this angle.

Verified that the system has a 512MB ATIĀ® RadeonTM HD 4350. Would that be a drain on the power supply too?

- achinmay76


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#3
January 2, 2012 at 04:25:47
Not sure what the power requirements are for the card. Believe Dell state min 250W whereas ATI on the retail package say recommended 300W. Neither of these tells the full story since overall PSU wattage does not give an indication of the maximum AMPS available on the +12V rail. It appears the 256mb version of the card draws maximum 25W so you can probably double that for the 512mb card. This means a load about 50W or draw of 4.2Amps. You need to check the rated output on the +12V rail of the PSU and then see what your total load is taking into account the motherboard/CPU and drives that all use the 12v rail. If your total load is more than 80% of the rated amps then you should consider the system overloaded.

Goin' Fishin' (Some day)


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Related Solutions

#4
January 2, 2012 at 07:46:30
Try to run memtest.

1/3 of highway deaths are caused by drunks. The rest are by people who can't drive any better than a drunk.


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#5
January 4, 2012 at 04:13:42
Hi Jefro,

I ran memtest86 for about 8 hours and it came clean. So most likely does not seem to be a problem with the RAM. I am currently looking at isolating the issue to the video card

- achinmay76


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#6
January 12, 2012 at 19:21:14
Hi Richard59, Jefro,

Thanks for your suggestions.

I unseated the video card, cleaned out the fans and reinserted it. The system has been running for about a week now without encountering a video hang. I will monitor the situation for a few more days and hope never to see the problem again.

Thanks for all your help on this.

- achinmay76


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