Having Mobo issues

Built it / Smilodon
January 11, 2009 at 10:18:04
Specs: XP - pro, Pent4 duo/3gig

This is a newly built P.C. It does not produce any video.
When it's powered on all the lights and fans attached are
on, I here the monitor click on, then it clicks off. After
which i tried a bench test with the Mobo, I connect just
the monitor, keyboard & mouse(serial). I get the same
response. What could be the issue??

Here are the specs of the unit:

The mobo used is an "ECS Elitegroup (Enforce 570 slit-a)"
RaidMax power suply, supporting intel pent4.

NOTE: the PCI-Ex slots are ver 1.0a

The processor is an intel Core2 duo

The Mem. used is a 1 gig stick of DDR2-PC2-5300.

The Graphics card is pcie Galaxy Geforce 7200 gs, has
S-video ports.

The PC- case is a SMILODON.

The HDD 250 WD.(EIDE)

The ROM Drives(two) are LG Lightscribe. (SATA)


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January 11, 2009 at 10:49:09
Didn't you post about this recently?

When you tested the board, did you completely remove it from the case?

All you need is the board, CPU w/HSF, one stick of RAM, PSU, video card (use onboard if your board supports), monitor & PS/2 keyboard. Do not use a USB keyboard & do not connect a mouse.

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January 11, 2009 at 12:13:58

Yes I did post about this earlier, I am reposting because I'm
still having the problem.

Yes I did completely remove the board from the case. The
mobo does not have an onboard video. I did use a serial
keyboard & mouse, it's all I have. This seems to be a unique
issue for that only a few people responded. But I need help


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January 12, 2009 at 05:12:58
Pull out the memory, if you have a speaker attached it should issue a series of beeps.

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Related Solutions

January 12, 2009 at 08:57:57
Virtually all new motherboards have an onboard sound device to produce audible codes. No external speaker should be necessary. Many cases today don't even include a speaker for that reason.

In addition to pulling all the memory out and listening for error codes, the same should work for the video card.

When testing outside the case you shouldn't have any drives connected or any case wiring at all. The 24 pin power connector and the additional power connectors to the motherboard are all that is required. Temporarily short out the two pins on the motherboard that are for the power switch by touching them with a screwdriver.

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January 13, 2009 at 07:11:29


Tried the Bench test without the memory installed and no beeps
from the onboard speaker, also as I think about it; there were no
beeps when the keyboard was out of its port.

What could this mean, a mobo issue?, can this be fixed? or is it
now wall art?


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January 13, 2009 at 07:26:56
Not necessarily wall art. You could have any number of issues. You could have an incompatible or defective CPU. The HS/fan could be installed wrong. The power connections might be wrong. The PSU may not be up to the task.

If you are using a PS/2 keyboard I hope you are not plugging/unplugging while under power.

Did you disconnect all the hardware not required for POST? You don't need ANY drives to POST. Disconnect ALL drives. Both power and data cables.

Read you manual to see what beep codes are for what. If I understand your specs you have SLI on the motherboard. That would preclude having on board video. I believe that If you attempt to POST without any graphics card you should hear an error code. Be sure that when working inside the case you have the PSU switched off or unplugged. Also take proper anti-static precautions.

In addition to the 24 pin power connector you should also have the CPU fan connected to the header marked CPU. There should be an additional power connector plugged into the motherboard somewhere near the CPU and you may also need a power connector to the graphics card.

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January 13, 2009 at 12:38:32

OtheHill, thanks for your reply,

A lot of the troubleshooting ideas you've expressed this time were done before I entered my post.
However, the possible CPU issue is something I did not factor. I read the manual before starting the install
process to see if there were any other features to the mobo that wasn't mentioned in the specs.

When performing the first bench test none of the drives were connected. The video card(PCIE), the PSU(
which in fact does have a second 4 pin power connector that's naer the CPU) with 500w output, 1 stick of
memory(1gig), and the PS/2 keyboard & mouse were the only items connected. The second test was with
just the speaker and the graphics card, no memory.

I always wore the anti-static straps when handling the mobo and the parts that were installed.

I come to post my issues at C.N. when I'm at my wits end. The mobo is one thing, but how do you test the
CPU for flaws??



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January 13, 2009 at 15:28:05
There is no method to test a processor except to install into a known working motherboard.

I also mentioned compatibility. Something else is the Clear BIOS jumper could have been in the clear position. That might damage the motherboard if it was. You need to look at the manual to determine if it is in the correct position. Even if it is it would be a good idea to clear it with the computer unplugged.

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January 16, 2009 at 17:19:16

One last question,

If the MoBo was fine with no issues, wouldn't i still get video
when or if the processor is defective??

The answer to this question help me make up my mind on
what to do next.


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January 16, 2009 at 17:57:42
If the processor is no good nothing will work.

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January 16, 2009 at 20:02:48



One more, Tried a bench test with a working intel Pent 4
processor in the mobo with possible issues. attached the
ps2 keyboard & mouse,graphics card, no mem.

Same result, no beeps, no video. if there is nothing else
that can produce this problem, it seems like we're leaning towards the mobo.

The MoBo's manual & its package says that intel pent 4 is


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