No screen display from old glass monitor

January 14, 2010 at 15:08:58
Specs: Windows XP
i just got a new processor and motherboard and a harddrive, my computer has one of those old glass monitors, not a LCD but i was able to connect everything just fine, but when i turn on the pc the screen dosent go on, just says"off display" and goes to something like a sleep mode after 5 seconds, and i dont know what to do.

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#1
January 14, 2010 at 15:32:54
Where is the monitor connected to? The motherboard or an add in video card?

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#2
January 14, 2010 at 16:28:38
its connected to the video card

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#3
January 14, 2010 at 16:44:09
Your monitor is referred to as a CRT (Cathod Ray Tube) display. If you aren't getting any video then you may have assembled something wrong.

Did you buy a motherboard with the processor and heat sink pre-mounted or did you mount them? If you, have you any experience with this stuff.

There are loads of mistakes you may have made. Ranging from buying incompatible or defective parts to improper assembly.

Start out by posting what you had before the upgrade, including if you are using a case from a pre-built computer. Then post all the components you are now using including part (model) numbers. Include the exact model of the power supply, motherboard, CPU (is it retail or OEM), video card, memory, hard drive, etc.


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#4
January 14, 2010 at 17:30:29
ok its a custom pc and no the motherboard and processor came apart and i mounted them but i done all those things before, its a dual core pentium E5300, the motherboard is P5Q SE2 asus, video card is geforce 7200 256mb, hard drive is WD Caviar Blue WD1600AAJS 160GB 7,200RPM SATA 3.0Gb/s, power supply i forgot but its 550watts,DDR2 corsair ram 2gigs, and before it was all the same expect the processor was pentium 4 3.2ghz, and P5GD2 asus motherboard, a tech told me it could be a failure at power supply or ram but i am not so sure about that.

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#5
January 15, 2010 at 01:55:36
Otherhill is right. First u need to benchtest your hardware, pull everything out and all u need is cpu+heatsink,ram(only one stick),board,psu,graphic card or igp. And why choose weak card?<geforce 7200>

edit. Post the psu specs or its full name.How much amps are in +3.3v,+5v,+12v.


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#6
January 15, 2010 at 11:40:59
sorry its a 7800 and it was bought 5 years ago lol, and okay i'll try doing that

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#7
January 15, 2010 at 11:44:13
oh and one more weird things that happens is when my dvd-roms are connected to the power-supply they work but when i plug them into the motherboard they go dead, never happend to me before and i had many pc's

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#8
January 15, 2010 at 12:13:27
Sounds like your power supply may be going out.

As requested above what is the exact model of the power supply?


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#9
January 15, 2010 at 18:05:35
the power supply is an antec TP-550, i am going to place another power supply in now, see if that changes anything, i will post back the result

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#10
January 15, 2010 at 18:30:45
ok same thing with a new power supply, no screen or cd-roms working

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#11
January 15, 2010 at 19:29:41
Are you sure the monitor works? Try it on another system.

Did you pull out the board and bench test it?


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#12
January 15, 2010 at 20:02:06
yes the monitor works, my question is, do the new systems work fine with old monitors like mine? and no i havent bench tested.

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#13
January 16, 2010 at 06:11:16
Are you using any adapters to connect the monitor?

Is the video on the motherboard or an add in card?

Going back to your original post the monitor can display a message like you stated if there is no signal being sent to it. That can be for any number of reasons. If the core components in your computer are not working then you won't get video.

Core components are motherboard, CPU, memory, video and power supply.

You still didn't say if you bench tested your motherboard.

You could have a case standoff in the wrong place and that would short out the motherboard. This can happen if you switched from ATX to mATX or the other way around. You should have standoffs placed ONLY under screw holes in the motherboard. This is just one mistake that you could have made. Did you apply thermal paste properly before installing the heat sink? Are you reusing the heat sink from the old system?


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