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"PC Not Booting LEDs Stay on"

Rite, I encountered this problem once when i was building this PC:

I pressed the power button, it all fired up, but no image appeared on the TFT Screen, just says No Video Input. So I left it for a while came back and it worked fine.

I just took it to my Dads house and fired it up and it did the same, so I put the PSU Plug into a separate socket on the wall and removed all USB Devices and pressed all power plugs and it booted again.

I reinserted everything again and it all worked fine? Weird I thought. So after 20 mins of use, the PC Froze and so I rebooted and monitor went into sleep mode, so I shut everything down and rebooted. No Video Input.

This is all I get:

CPU Fan Spins
Hard Drive LED Flickers once then stays on
Power Light Stays on.

So I removed CD-RW Power cable and booted it, didn't work. So I left it for a while and tried again and it posted and worked fine. Since Im writing on the PC Now. But the CD-RW is unplugged but the Power Light on the case is blinking on and off.

I think it might be the PSU (300W) not supplying enough power to the system:

2500+ Barton
Gigabyte GA7N400e-l
Crucial DDR400 512mb
80gb HDD
Samsung DVD and CD-RW (Separate)

I only assume its the PSU cos it works after removing the power from a drive, and the power light is flickering, which I can only assumed to mean there is low power???

Can someone comment and tell me if it is the PSU so I can go and buy a new one?


Thanx. Dan.

(AKA. Fl4wless)

Thx for help, PC Fine now.

I had a problem very similar to this on two of my computers, in both cases it was the power supply.

Best to try the PSU first as if you get a decent 400w one from a decent company, and not some £10 PSU. With the PSU two good makes are Enermax and Antec. Look on www.overclockers.co.uk and see how much they are. If its not the PSU then at least you will have a decent PSU for another system or upgrades. With some of the latest graphics cards like the Radeon 9800 and maybe the 9600 series and others you need to have at least a 350w PSU. Plus you would have ruled out the PSU and you can start by replacing other components.

so, do u think it is the PSU? Or could it be the CPU or the mobo?

less resistance*, not voltage.

However that just means they draw more current, this is not good.

Only the semiconducting chips have less voltage when warm.

I would suspect your power too, your system is very hungry. This would explain the thing about the USB devices as well.

400w PSUs are relatively cheap.

by the way im danieldone, just i used old account by accident wen i was at my dads.

The thing works fine after its warmed up a little bit. And when circuits get warm there is less resistance to voltage, therefor, I think it MUST be the power. Will go talk to my local PC Store first though.

rrr dont steal my post, start ur own.

FIFTY-CENT wrote:
> what is the best graphics card for the PC?

depends how much money you have got to spend

what is the best graphics card for the PC?