How to make new CPU work after upgrade?

Hi everyone,

I upgraded my AMD CPU and once i switched the PC back on it won't boot. All the internal fans turn on, but the system freezes - nothing on the monitor, and the Power button would not even shut it down. I have to unplug the cord to power down.  This is my first upgrade, but I followed the best practices pretty closely.

The specs are as follows:

1) Rig - eMachines T6520,
2) Mobo - MSI RS 480M, Socket 754 AMD chipset, verson 2.1 A21 SB400-A31 (read off the mobo itself)
3) BIOS - Phoenix D888 2005 v 1.1 - I wanted to try to upgrade but Phoenix (eSupport.com) said I had the latest
4) New CPU is AMD Socket 754 Athlon 64 3700+ (AMD product code ADA3700AEP5AR), the fastest desktop Socket 754 Athlon they ever made. Mobo specs say that this chip model is definitely compatible.

Assuming the chip was not DOA when i got it, d'you have any idea what may be going wrong? Any possible solutions before i degrade back to the old CPU?

Thanks,
Vlad

Thanks. Vlad
vklenAsked:
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_Commented:
Try clearing the CMOS
Check that the ram didn't get bumped a little loose
Make sure all the power connector are in snug.

Disconnect and/or remove everything but one stick of ram, the video, cpu, and power supply, and try.

Any beeps at all from the mobo? With no ram installed?
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tharsternCommented:
Your bios needs updating to v1.5, your CPU is not supported on v1.1/

See Table of compatibilty

http://www.msi.com/index.php?func=prodcpusupport&maincat_no=1&prod_no=204#menu

download bios update from here

http://www.msi.com/index.php?func=downloaddetail&type=bios&maincat_no=1&prod_no=204

Happy flashing!!!
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vklenAuthor Commented:
thanks tharstern,

however, before trying this chip upgrade i did exactly what you just did and checked MSI website for BIOS updates. If you read carefully though, they only offer AMI BIOS flashes and NOT the Phoenix ones.
I happen to have an odd version of this same mobo, but with a Phoenix BIOS, and Phoenix told me the version i have is the latest.
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vklenAuthor Commented:
Tharstern,

Also, the chip i have just installed is actually on that Compatiblity Table that you cited. See AMD Athlon 3700+ (CG Version) under ClawHammer, 130nm, L2 Cache 1MB. It is exactly the chip I just installed.
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PUNKYCommented:
Did you apply thermal paste between CPU and heatsink?
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tharsternCommented:
Try this

http://www.brothersoft.com/msi-live-update-154847.html

and see if it detects an update for your bios.

You might be out of luck, as if you have a bios from 2005 (and i fail to believe that there isnt an update, emachines probably tell customers that so they dont brick their pc's).

Its a MSI board, and one that they sold retail as well as to emachines. Some make variants of boards only to OEM's so you cant be sure that it could work.

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vklenAuthor Commented:
coral47 - thanks for your response

I did pull out both memory chips. No sound from mobo at all, with or without memory.

I am trying to locate that CMOS jumper... will let you know as soon as i find it and clear
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tharsternCommented:
I know about the compatibilty list, but it does state you have to have FROM BIOS VERSION 1.5 at the top(which is a 2008 bios) and yours is a v1.1 from 2005 so its unlikely that it is supported by your bios version. unless you can update it i think you are out of luck.

This is where you should be looking.

I'm assuming that you used a retail cpu with the thermal paste already on the cooler, and you didnt remove any power connectors.


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vklenAuthor Commented:
PUNKY,

Yes, I did use thermal paste
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PUNKYCommented:
To verify, you should redo the paste again and that does not help, then reinstall old cpu to make sure system is still working properly before go further trouble shooting.
Please try and feedback.
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vklenAuthor Commented:
tharstern -

Thanks again. Noted on the 1.5 version, good catch.

MSI Live Update from that link that you posted does not detect any updates for my Phoenix BIOS, nor does Phoenix's official BIOS update site eSupport.com.

I think you are hitting the nail on the head here. It looks like eMachines moded the MSI mobo with a different BIOS version for their own OEM release and then "forgot" to provide updates. It frustrates customers' attempts to upgrade major things like CPUs and forces them to buy new systems altogether.I just read a thread talking about it on MSI tech forum.

Yes, it is a tested refurbed CPU from a trusted source (ebay). I used my own thermal paste before reattaching the heatsink. No issues with the installl process as far as I could tell.
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vklenAuthor Commented:
Thanks PUNKY,

If CMOS clearing does not work, let me try your solution.... I need to buy more thermal paste though first. Will try to do it over the weekend and will report.
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PUNKYCommented:
Not sure where you live BUT this weekend is Memorial Day weekend in US ..... go out, have fun, spend a little, that should help America economy :o)
Happy Memorial Day to All.
 
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vklenAuthor Commented:
:) Oh, I am in NYC.... I am sure some odd places would still be open to sell some superduper thermal paste.... Happy Holiday as well.!
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vklenAuthor Commented:
Coral47

I tried all your suggestions - cleard CMOS, tried to boot after disconnecting everything but CPU, 1 memory stick and video. Still nothing - just fans spiinning.

Wierd.... why would not even beep any error codes?
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vklenAuthor Commented:
I just put the old chip back in and unfortunately the same issue continues! the pc is not booting. help!
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tharsternCommented:
Check the P4 12v power connector (the yellow and black lead) is firmly in the board (ie not the main block of 20/24 from the psu, but the extra 4 lead plug).

Check you have put the cmos jumper back to the 'normal' position

check you have plugged the cpu fan back in.

All these things could give you the fault you are seeing (ie no beeps)

Also you could check your psu as the emachines power supplies are very underpowered.



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vklenAuthor Commented:
yes, i rechecked all the power connections to the board and they are all tight.

I put back CMOS jumper to 1-2 position and put the battery back in.

I replaced the eMachines stock PSU with a powerful HEC Orion 585W one. I can't imagine my system is underpowered.
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tharsternCommented:
I find in situations like these, to totally remove everything, and then put everything back in. If you are sure that youve followed all the anti static precautions, and it still doesnt work, then its possible something on the motherboard could have been damaged during the change.

If you are lucky enough to have a spare pc (or a VERY good friend ) try the memory in another pc, same with the graphics card, and same with the power supply, and vice versa.

freezing like you are experiencing is normally due to something lose or a faulty motherboard or cpu.

I'd be inclined to buy another motherboard (one that definitely supports your cpu) if all else fails, as CPU's are very rarely DOA.

You can try your PSU that you took out to remove that as an issue.

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_Commented:
What is the old cpu, so I can check the vcore voltage?
It sounds like either the bios might have got scrambled, or the new cpu took out something in the VRM circuit.

You can try clearing the cmos this way:
unplug from wall
take out battery
move jumper to Clear
press power button several times to fully discharge system
let sit for a few minutes
put it back together, and try
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_Commented:
I really need to learn to type faster.   ; )
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vklenAuthor Commented:
The old CPU is Athlon 64 3400+ series, 2.40Ghz 512 KB L2 Cache, 1600 MHz FSB, shoot, I forgot to write down the exact part number before I put the chip back in.

On CMOS, that's pretty much what i did, coral47. Still does not work. I will give it another shot.

Are BIOS scramble or VRM circuit fixable?

I heard about some PCI POST error checker devices. Are those helpful at all in these situations?

Tharstern, I pretty much disconnected and then reconnected every single part, memory stick or wire that connects to the mobo to make sure nothing is loose. I was pretty careful on the anti-static front when I did the CPU changes.

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vklenAuthor Commented:
A few more observations on what's happening

When I triy to boot with everything disconnected (except for CPU, memory and graphics card),  CD Rom and DVD Rom trays actually open and close when i push their eject buttons, whereas they would not respond to button commands when i boot with everything connected to mobo.

Also I may have failed to meniton that HDD actually also spins when I try to boot, ie. HDD and all fans are spinning, but no POST, no beep and nothing on the screen.
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_Commented:
You need to pull the power AND data plugs from the HD and ODs. One of them might be causing the problem.
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vklenAuthor Commented:
Tried to clear CMOS again. Followed your steps, coral47.
i tried to boot with all the data and power connections out. only CPU and its fan connected to board.

Still the same issue continues.

Any other ideas?



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_Commented:
Not really. I think your motherboard was made before they started putting the 'Bad Flash" bios's in, but you can check the manual for a for a key combo to get you to a 'safety bios', and try an update that way.
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_Commented:
Thank you much.   : )
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vklenAuthor Commented:
It was some loose connection after all, but not sure which....

Once i removed the board from the PC case and replugged all the wires and components, the machine came back to life! Both my old CPU and the new one are working now.

Thanks all for your help!
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_Commented:
Good to hear.   : )
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