Problem with Philips 107t5 monitor

[gavman]

Hi all

Have just recently upgraded with the following specs:

ASUS a7v8x MB 256x2 ddr 3300 ram
Athlon 2200+ XP processor
Creative Live! sound card
Philips 17" CRT 107t5 monitor
GeForce 4 440 mx 64 meg vid card

The main problem here is the monitor. When I turn on the computer & the monitor is in a standby mode (ie the power light is flashing), the computer will boot normally and the monitor power light will stop flashing but no picture.....the power light has a 5 second "pulse" through it as well. The only way to correct this is to unplug the monitor (it is self power through the wall socket) as the power button seems to freeze.
The same thing happens if I put the computer to sleep and wake it up, no picture.

The manuel does mention that Philips monitors do have a feature to prevent them being damaged by being turned on or off within 5 seconds.....but surely you would expect them to be turn on?

One thought I have had (and something to correct soon) is that I'm using a 250watt PSU but I wouldn't have thought that this would affect the monitor as it's self powered....am upgrading to a 350w soon.

Any help appreciated.

[caddmannq]

I do think this is a PSU issue. Monitor's not getting proper signal from the video card. By unplugging the monitor, you're clearing some kind of "error state".

250 watts could be realy wimpy for that system, depending on the exact model of PSU.

They are not all created equal, and some 350's won't even be enough, due to the way these things are rated.

Look for high power output on the 12 volt & 5 volt circuits when you compare them.

www.Tomshardware.com did some extensive tests of PSU's a while back. Good reading before you buy.

[gavman]

Thanks for that caddmannq, I'll do my homework before I buy.

Cheersm

Gavman

[caddmannq]

My pleasure.

Poor power supply is the main cause of failures/crashing of Athlon systems, heat being a close second. Good heatsinks & fans are absolutely essential.

BTW, I run 450 watt Enermax PSUs & have been very pleased...
but they're about $100 here.

[gavman]

Seek and ye shall find...
Went to the Asus website and found the following below on their FAQ for the A7V8X:

Recommend power supply on A7V8X

Problem What power supply should I use on A7V8X?
Answer
The minimum recommended voltage is 230W, or 300W for a fully configured system. Please make sure the power supply can provide at least 1A on the +5V standby lead (+5VSB) to make the wake-up function of the motherboard work properly. You can also refer to AMD's recommended power supply information according below web page: http://www.amd.com/us-en/Processors/...0_182_869_4348^4358,00.html

Thanks again for your help caddmannq, this has been one of the most helpful forum/technical webpages I've found.

[caddmannq]

It's our excuse for having a life