i am getting no input signal to the monitor,

Hewlett-packard Pavilion a6500f desktop
June 6, 2010 at 08:55:12
Specs: Windows Vista
i have put in a video card and upgraded the psu, still get no signal, can my mobo be shot

See More: i am getting no input signal to the monitor,

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#1
June 6, 2010 at 09:18:07
U didn't list system specs.
What happens when u remove v-card? Or use old config

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#2
June 6, 2010 at 09:33:47
i started getting the no input signal, tried another monitor, didnt work either. put in a geforce 9400gt video card, still the same,upgraded psu to 650w, still no change. i have a hp a6500f desktop

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#3
June 6, 2010 at 09:43:24
I think v-card and psu are fine but the issue is cpu or mobo. Do u have another compatible system to test cpu,ram? If not try to start system without ram, now do u hear beeps? U can try to remove other hardware and leave cpu,ram(one stick) then start the system.
Do u know the cause? Or it just happen?

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Related Solutions

#4
June 6, 2010 at 09:46:41
it just happened, ill try removing memory

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#5
June 6, 2010 at 09:49:05
removing memory didnt help, ive also tried resetting bios, and cmos

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#6
June 6, 2010 at 10:43:49
You probably didn't have to upgrade the PSU for a 9400GT. It's a pretty weak, not very power hungry & not much of a gaming card. A decent brand name 650W unit should have set you back at least $60, probably more. If you bought a generic cheapie, you *may* have actually downgraded.

I don't know why people immediately resort to clearing CMOS...this is NOT a BIOS problem, it's a hardware problem. Regardless, are you getting any beeps when you try to boot the system? Are you sure you connected both the 24-pin & 4-pin ATX plugs? Have you tried temporarily removing the new card & going back to the onboard video?

http://h10025.www1.hp.com/ewfrf/wc/...


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#7
June 6, 2010 at 10:49:10
yup tried all of that, no beeps, i got a corsair tx650w psu

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#8
June 6, 2010 at 11:20:27
clearing cmos was not immediate, im grasping at straws at this point. if i replace the mobo, should i also replace cpu and ram? or maybe do it one at a time?

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#9
June 6, 2010 at 12:01:27
The psu fine but it was un-necessary as jam explained.
I suspect motherboard, may be cpu is the problem, u need to test your hardware in another compatible system to know for sure.

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#10
June 6, 2010 at 12:08:54
I get it, everything I have done so far was unnessary, it did'nt work. What I need is a path to take. What do I try 1st, 2nd,ect. I don't have another system to try. I was hoping to figure it out. Now I'm into it to the point I might as well build it on out,suggestions?

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#11
June 6, 2010 at 12:29:00
I don't know for sure if u can find the same board (i have little xp with oem system) but if u have to buy motherboard u also have to buy new case,cpu heatsink. The other components can be reused.

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#12
June 6, 2010 at 13:15:08
At some point the replacement of all these parts will cost more
than a new higher performing and cheaper system.

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#13
June 6, 2010 at 13:29:32
Back up to square one. Did you install the add in card BECAUSE you lost video with whatever you originally were using?

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#14
June 6, 2010 at 13:37:45
Yes, then I was told that my psu was insufficient, I upgraded. Now I'm wondering what the next step should be. As I've just ordered a mobo.

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#15
June 6, 2010 at 13:50:15
If that doesn't work Im two parts away from a new computer, hahhahah

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#16
June 6, 2010 at 13:50:22
Just to be clear, you lost video after things had been working fine for some period of time?

Was that video integrated or an add in card?

Did you try the new power supply with the old card/integrated video?


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#17
June 6, 2010 at 14:09:31
Worked fine til warranty was up, video was integrated, yes tried removing new card and just switching between the ewo. Nothing has worked yet.

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#18
June 6, 2010 at 14:15:26
What about trying the new power supply with all the rest of the original hardware.

As was pointed out above, you are passing up reasonable amounts of cash to get this system running.

Furthermore, if you don't replace with an HP board your copy of Windows probably won't work with the new motherboard.

It sounds like your original problem may have been a defective power supply that could have also ruined the motherboard.

How much is the motherboard you ordered and what is the exact brand and model? Or are you getting an exact replacement board?


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#19
June 6, 2010 at 14:26:23
Tried original hardware, at this point I'm 120$ in,wanted win7 anyway, only replaced psu because store I got video card from told me to ( wonder how that happened) 79 for the mobo.

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#20
June 6, 2010 at 15:04:16
You're at 20 responses now & you still haven't told us the whole story. From what I gather though, this ordeal started when you lost the display? Were you getting any beeps at that point? If not, you should have stopped right there. The lack of beeps means that either the CPU or board is bad.

Anyhow, you went out & bought a cheap card & the "store" told you to buy a new PSU too? I don't see how you're only "120$ in" when the Corsair 650W generally goes for at least $100. You must have gotten a hell of a deal on something. Now you want to buy a new board...what if the CPU is bad?


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#21
June 6, 2010 at 15:33:54
I have tried all that any and every poster has suggested, if you have a better, or any other suggestion, I will be more than happy to listen and hopefully learn. Just trying to get my sons computer working again.

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#22
June 6, 2010 at 15:48:56
When you connect everything back as it was and try to start is there any sign of life? Like lights or fans turning?

Do you know how much memory you have?

Do you know what motherboard this same store was going to sell you?

P4 socket 775 boards are pretty much old news.

Answer all questions


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#23
June 6, 2010 at 15:56:20
Thanks again to all, hopefully at some point the darn thing will work.I guess you can only replace/upgrade so much. Then you have a new computer.

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#24
June 6, 2010 at 16:03:49
Dw

Why didn't you answer any of my questions?

Your sons computer isn't going to fix itself, so quit hoping.


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#25
June 6, 2010 at 16:11:34
Sorry Othehill, I'm not giving up, thought you were giving up on me.

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#26
June 6, 2010 at 16:16:21
everything seems to work but no beeps 4GBZ no should i upgrade

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#27
June 6, 2010 at 18:52:45
You're not troubleshooting, you're just arbitrarily replacing parts!

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#28
June 6, 2010 at 22:31:33
Everything seems to work is not helpful. Describe exactly what you see and hear, if anything.

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#29
June 7, 2010 at 06:59:13
Sorry I've been away. I have a foxconn mobo mcp73m01h1, samsung 4gig ddr2 800, intel e2220 processor,and you know about the video card and psu. Ican see fans run but other than that I get no beep or other sounds. let me know if I've left anything out. Thanks

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#30
June 7, 2010 at 07:07:21
Check your private messages. I sent you one for a cost effective board and CPU. That board only has 2 RAM slots. If you have 2-2GB RAM sticks you would be good to go.

http://www.newegg.com/Product/Produ...


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#31
June 7, 2010 at 07:30:33
Thanks again, I will let you know if it works.

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#32
June 7, 2010 at 14:21:19
So do you have 2 or more than two sticks of RAM to make up that 2GB?

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#33
June 7, 2010 at 14:51:36
yes samsung 4gb, 2x2

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#34
June 7, 2010 at 16:49:12
Then that board and CPU should work for you. There is onboard video on it too. It is a mATX board. If your original board is a full size ATX you may need to move around some of the mounting standoffs. Be sure to have one under each screw hole but ONLY under screw holes.

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#35
November 26, 2010 at 20:35:50
This PC is a piece of crap. Mine turns on everything powers up so no PS problem fans spin lights all work even the DVD drive initiates but monitor immediately goes to sleep. Tried everything in all the forums that was suggested. Started out with a BIOME-1 error then I replaced the ram and now I get a blank screen. Prior to that I did a system restore. I'm lost it doesn't seem to be the motherboard so I'm baffled. If it was a MB would all the other peripherals continue to operate?

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#36
November 27, 2010 at 06:01:37
nest101

This thread is 5 months old. You need to start your own thread in the hardware forum.


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