Hello there, I have recently joined these forms.
So, basically I have a problem.
These are my specs before
AMD athlon 64 3800+
Nvidia Geforce 220 gt
5 gb ram sticks
One day, I decided I would get a new processor. After doing some research, I found an
AMD Phenom X4 9750 Quad Core Processor
I did some more research and found out that my old processor was am2 and the new one is am2+
After doing a little more research, I found out that it an am2+ was compatible with an am2, so I decided to get it
A few days later it arrived. And basically, I opened my desktop and started trying to replace it.
At first, I was confused because I wasn't able to remove my heatsink even after all the attatchments/screws were removed
So, I did a last weak tug and my heatsink came off.
Now, my old processor was glued on to my heatsink.
So, Me and my dad used some nail polish remover to remove the glue
It worked like a charm, and I was able to remove my old processor.
So, I stuck my new chip in, and reconstructed it/ put it back together.
When I pressed the power button, there was a loud, huge sound coming from the fan.
There were no pictures on the monitor
Usually, my computer starts just by a small beep
So, I removed my heatsink and fan and tried to start my computer
No dice, however, it has been revealed that most of the sounds were coming from my Video card's fan, which is weird because it has never been as loud before. Also, all the lights were functioning, which seemed like a good sign.
So, ignoring the sound, there was still no picture on the monitor.
I tried to shut my computer down with the power button, but it wouldn't work
For some reason, I am able to start my computer via button but I can't turn it off by the button
I had to switch my power supply off and on again.
So, figuring that something was up, I took out my new processor and stuck in my old processor
Just a note, while we removed the old processor, everything was fine. The processor still looked the same as before, we didn't smash it up or anything...lol
So I put back my old processor and started my computer
the same thing
There was still no picture on the screen, a high blasting sound from my video card, and can't shut down the computer by the power button
I then switched video card with my sister's computer which is a geforce 9800 gt
and the sounds were less severe but it still wouldn't boot
This is where I am stuck
I am suspecting there is either something wrong with the processor, or the motherboard, or the power supply
My psu is only 250w by the way
P.S. I have tried removing my video card completely to reduce wattage and seeing if it would boot but it still doesn't
The 9800gt still works on my sister's computer
Are you saying the 9800gt killed my power supply
If it killed my power supply, wouldn't my computer wouldn't even be able to start up/fan not working/no lights
Breadboard with just motherboard, CPU & HSF, case speaker, and PSU. You do have a case speaker installed, right? If not, you really, really need one. If your case or motherboard didn't come with a system speaker, you can buy one here: http://www.cwc-group.com/casp.html
You can turn on the PC by momentarily shorting the two pins that the case power switch goes to. You should hear a series of long, single beeps indicating memory problems. Silence indicates a problem with (in most likely order) the PSU, motherboard, or CPU.
Motherboard LED's mean very little. When on, all they are telling you is that the computer os plugged into a live power socket and the PSU is switched.
Remember, at this time, you do not have a graphics card installed so the load on your PSU will be reduced.
If no beeps:
At this point, you can sort of check the PSU. Try to borrow a known good PSU of around 550 - 600 watts. That will power just about any system with a single GPU. If you cannot do that, use a DMM to measure the voltages. Measure between the colored wires and either chassis ground or the black wires. Yellow wires should be 12 volts. Red wires: +5 volts, orange wires: +3.3 volts, blue wire : -12 volts, violet wire: 5 volts always on. Tolerances are +/- 5% except for the -12 volts which is +/- 10%.
The gray wire is really important. It should go from 0 to +5 volts when you turn the PSU on with the case switch. CPU needs this signal to boot.
This checks the PSU under no load conditions, so it is not completely reliable. But if it can not pass this, it is dead. Then repeat the checks with the PSU plugged into the computer to put a load on the PSU.
If the system beeps:
If it looks like the PSU is good, install a memory stick. Boot. Beep pattern should change to one long and several short beeps indicating a missing graphics card. Silence or long single beeps indicate a problem with the memory.
Insert the video card and connect any necessary PCIe power connectors. Boot. At this point, the system should POST successfully (a single short beep). Notice that you do not need keyboard, mouse, monitor, or drives to successfully POST.
Now start connecting the rest of the devices starting with the monitor, then keyboard and mouse, then the rest of the devices, testing after each step. It's possible that you can pass the POST with a defective video card. The POST routines can only check the video interface. It cannot check the internal parts of the video card.
Next, either with or without a BIOS upgrade, does your motherboard support the new CPU?