I have transferred my PC from a slimline case to a standard one. The only other thing I have changed is the CPU fan and power supply.

I have had some problems getting the system to stay powered up, but have resolved that (didnt have power button connectedto mobo). The problem now is that the monitor is not picking up a video signal (message on screen "no video input"). I'm using the same graphics card:

GeForce 7100 GS (PCI-express)

Can anyone help?

If the MB has on-board video, connect your monitor to that.

there is no onboard graphics card. have tried 3 different cards, all PCI-E, none are getting a signal to the monitor,

any further suggestions?

When you put the motherboard in the new case did you make sure to put the stand-offs in the right positions with no extras possibly causing a short on the board?

What model was the original phillips freevents?

How many PCI-E slots are there?

When you start your computer do you hear any beeps?

I have checked the stand-offs, I think they're ok.

It was a Freevents LS1500-UK.
There is only one PCI-E slot, 4 PCI slots.
When it starts it does beep.

Any thoughts?

Did you buy a no name PSU? Did you verify the PSU is compatible? What are the specs of the PSU? When you changed the CPU fan did you clean the thermal compound from both surfaces and reapply properly? Are any beeps detected during POST?

The PSU is iCute (400W, 90% peak), are they decent or not, i have no idea?

I have tried the old power supply and still have the same problem. How would I check if the new one is compatible?

I used Timclean to clean up the heatsink and CPU.

There is a beep when I switch it on.

Any thoughts?

When you boot does the hard drive start working like it's booting the operating system?

I can't tell for sure because of the monitor, but the hard drive starts spinning, and when switched off it can be heard spinning to a halt.

I've tried two different hard drives and both seem to be working with the system

Don't know anything about that PSU. Try reseating the video card. Check the BIOS settings to see if the settings are looking for the PCIe graphics first. If the PSU is underpowered you could try disconnecting all drives in the system temporarily. Harddrive isn't required for POST. You should get video and an error message.

Have disconnected drives and tried without. Still the same.

How is it possible to check BIOS settings without video?

He can't check the BIOS because he has no video signal.

Reseating the card is a good idea but I assumed you already did that by attempting to use 3 different cards. Make sure the card is firmly in place.

The 7100GS has two outputs. Are you using a DVI adapter?

Yes, but have tried both with adapter and via the analogue

Have you tried a different monitor?

Yes, I've tried two monitors

When you put the new cpu fan on did you use thermal compound?

Yes, akasa thermal compound

Make sure all of the power plugs are connected to your mboard. There should be a 20+4 pin and a 4 or 8 pin. Make sure they are seated properly.

Try clearing your CMOS.

If all else fails, try putting everything back in old case exactly as it was.

I've just tried exactly that, putting it back in the old case, old PSU and it's still not getting a video signal.

What does that say to you? Have I naccered the mother board?

How do I clear the CMOS and what does that do? Worth a try

To clear CMOS you'll need your mboard manual. Find the CMOS jumper. Disconnect the power. Move the jumper from the number 1+2 pins to the number 2+3 pins then put the jumper back to the 1+2 position.

This will clear the system configuration data. If there was anything wrong in the bios this should correct it.

I don't know if you damaged anything but I'm running out of ideas.

Good Luck!

The single POST beep means that the motherboard and CPU are 'probably' ok.

Resetting the bios is a good idea. Make sure that everything is disconnected from the motherboard except the RAM, video card and case wiring. Of course make sure the case wiring has been done correctly.

Just to be sure, power is staying up, right?

last question i promise -

can you use DDR2 400 RAM in a board which accepts DDR2 533 RAM?

I bought a similar motherboard today but didnt realise the discrepancy...

Yes, power is staying up.

I've reset the BIOS as suggested, and currently in the process of trying an alternative CPU fan

Is the CPU fan connected to the header marked CPU?

have tried what you suggested - just mobo, RAM, video card and case wiring (both with old and new CPU fan).

still getting no video

yes i think so, it is the header marked CPU_FAN

Are you supplying a power connector to the PCIe card?

ive put the old computer back together and the same thing is happening.

Is it most likely the motherboard is damaged?

no, there is no connector for the PCI-e card.

There is one from the new power supply, but there is no fitting for it either on the motherboard or card

Some OEM PSUs and MBoards are propietory. Look at the wires on each of the two PSUs to see if ALL the colors match, pin for pin. If the PSU is propietory and you connected a non propietory PSU to the MBoard it could have damaged it. However, you are getting the POST beep.

Are you seeing any signs of life when attempting to start up?

Everything fires up fine - PSU fan, CPU fan, HDD

I will check the PSU pins

The MBoard is now back in the slimline case? Are all the hardware items the exact same ones that were in there? RAM in the same slots as original? The mere attempt to boot with different hardware or hardware in different slots can cause IRQ conflicts. Try clearing the CMOS each time you make a hardware change.

BTW, when clearing the CMOS using the onboard jumper you must have the computer PSU switched of or unplugged.

The PSU pins are different, the original PSU and MB are proprietory, but everything fires up with the new PSU

Is it worth continuing with this combination of motherboard and PSU?

or do i need to get a new MB?

I don't know if something is damaged or not. If it were my rig I would try a little more testing before giving up on it.

Remove the MBaord and set on nonconductive surface where you can still connect the power leads from the PSU. Have only the following items connected. CPU/hs/fan connect to header, PSU 20/24 pin power connector, CPU power connector to MBoard, 1 stick RAM, KBoard, video card w/ monitor.

No drives, cables, other case wiring, external hardware, etc.

Try starting with only that hardware. You should get an audable POST beep and see POST screens leading to a boot disk failure. If you don"t still see video then shutdown and remove RAM. Restart and you should get additional audable error codes. Try the third time with RAM but no video card and you should get different error beeps.

Clear the CMOS before starting and after each attempt.

ive just found out it isnt the motherboard beeping, its the hard drive, and its very quiet.

I have a new motherboard, how do I know if it is compatible with the power supply?

What kind of MBoard is it?

You do understand the OEM version of your WinXP will most likely not work with a new MBoard.

Okay, I tried the steps you outlined, and I didn't hear a single bleep throughout!

I noticed that the first couple of times I connected power, the keyboard lights flashed on for a second, then off. The last 3-4 attempts, the keyboard lights didnt come on at all.

Is it looking like the MB is damaged? If so, how do I ensure the new one is compatible with the new power supply?

It is an Elitegroup 649-M3.

I will have to get help if I have to replace the motherboard, I've not started from scratch before.

I dont know what else to try?! I have been trying the old motherboard all day.

Does the fact it is not bleeping mean that it is not working?

What kind of MBoard is it? If it an aftermarket, not an OEM board it should have a standard power connector. You have a new power supply that should also be standard.

Supply more detailed information for a more detailed answer.

The new motherboard is Elitegroup P4M890T-M, I bought it today from a PC component suppliers

The PSU is iCute AP-400M12

Are there any further tests I can do before abandoning the old motherboard? Does the fact it is not beeping at the start mean it is not functioning properly?

You have effectively narrowed it down to the board or processor. I can't really speculate on which one it might be.

To change the subject a bit. Did you just purchase the computer in the slimcase or have you had it for a while?

I purchased the computer in the slimcase about a year and a half ago. Its a complicated thing with 3 or front panel boards with infrared, IEEE, AV inputs etc. I think it is designed to run as a unit, not to be tampered with!

I think ive damaged the board. There is a small scratch on the back I've noticed. I'm going to call it a day soon (its late here in the UK, at least for those who have to work in the morning!)

If you have the time, could you possible post some instructions on how to forge ahead with the new board, i.e. how to get the system running with a new version of windows etc. I have a copy of Windows XP on disk.

Also can I use DDR2 400 RAM on a DDR2 533 board?

Any input would be appreciated

I assume you checked CPU and RAM compatibility beforehand? Does the new board have the required drive connectors for the drives you have?

Pretty simple, just bench test the new board as I had you do the old one. Then install in the case. As far as the OS goes I assummed you had a pre-installed version of WinXP. Is that the case?

Do you have personal files that you need to recover from the harddrive? Is the harddrive one partition? (excluding any hidden OS partitions)

Is it okay to use DDR2 400 on a DDR2 533 board?

Yes Windows was installed by the manufacturer. However, I have a copy from when I bought this PC (the one connected to the net).

I do have files I would like to recover if possible. How is this possible? The hard drive is one partition

First thing is that you can only use the Windows CD you have on one computer. The copy needs to be registered before 30 days or it will quit booting.

You can recover the files in a number of ways. If the computer you are now using has connections for it, you could temporarily install the drive in that computer and copy the files or burn them to disk.

Alternatively if you are short on drive space anyway you could buy another drive and use it to install Winsows and use the old drive as a second drive. the files would be accessable but non of the programs would run without re-installing.

Do you have any recovery disks for the old computer?

I cant connect HDD to this PC as it is a different connection. Will probably go with the second suggestion, buy a second drive.

Is it okay to use DDR2 400 RAM on a DDR2 533 board?

Generally speaking the answer is yes. You may need to take ownership of the files after windows is installed. To take ownership look at the link below.

http://support.microsoft.com/kb/308421

Below is the link for your MBoard. You can download the drivers and manual from there.

If you buy a SATA hardrive you will need a floppy drive to install the SATA drivers. There are connections for up to 4 IDE drives and 2 SATA drives so you can go either way.

http://www.ecs.com.tw/ECSWebSite/Pr...

ccdean100

If you still have possession of the original PSU from that computer I would appreciate it if you would post all the labeling on there. I am especially interested to know if the PSU is labeled as an ATX PSU.