New CPU: fried?

OK so I just bought a new CPU and fitted it into the mobo. Turned the computer on and everything loaded up great. The mobo software came with a diagnotic/ monitoring program called Easytune5 and when the Desktop had loaded up ET5 recognised the new CPU as being different from the old one. A message came up saying "CPU settings have been changed. would you like to set these new settings as default?" so I click yes. PC still runs fine. Then windows does its automatic updating thing and requests a restart so I allow my system to be rebooted.

And now I have the problem. The system will not boot. I have tried removing the CMOS Battery and shorting the circuit and left the CMOS Battery out for close on 2hours while I went out. Came back and still nothing. Everything turns on like it's supposed to except the HDD won't boot. I hear it start up for a couple of seconds and then nothing. No light, no beep. So then I put my old CPU back in and nothing. I rang my friend who does some low level tech support and he says to try checking my RAM (all fine) make sure evrything is secured in place properly (fine) and then try booting the PC without the CPU in. So I did that and nothing, which he said to expect. so I put the old CPU in (I picked up the wrong one) and voila! Beep, light, boot up successful. At this point I realize I put my old CPU in and proceeded to swap things around again. and nothing. Back to where my problem began. so I went back to the start - CMOS, RAM, Cables etc plugged in tight, then the CPU trick. Put the new CPU in and got nothing. so then I put the old one back in and it works.

So every time I boot up I get the EasyTune5 message about the CPU settings changing and so now I always click no cos I don't know what will happen.

Is there anything I can do to get my new CPU working or is it completely buggered? I hope not cos the PC shop was busy when I bought it and the guy at the counter was so run off his feet he forgot to give me my invoice and because I was so excited about my new upgrades I forgot about it too.

Here's the PC specs if that helps:
Gigabyte GMX-S2 mobo
4g A-Data RAM
ASUS EN8600GT 512MB Video card
WD 80G HDD
WD 160G Slave
Old CPU: Intel Core 2 Duo E4500
New CPU: Intel Core 2 Duo E7200
Windows XP Pro (I know it doesn't support all my RAM but I can't stand that damn Vista! So I went back to xp)

 

Oops, I forgot to mention that when the System tried to reboot after the windows update a boot screen came up that I didn't get a chance to read more than the option selected: "load last known good setting" before it timed out and reboot once again. I was in the loo at that stage.
It was after this that I was having problems booting.

So I was wondering if this is something that can be solved through reformatting and starting with the new CPU installed? or something?

 

Check the core voltage settings in Easytune.

the 4500 has a voltage range to .8 to 1.5 volts

The 7200 has a range only to 1.36 volts although some are only guaranteed to 1.25 volts.

 

ok so I checked the BIOS screen and it reads CPU voltage at 1.32v which is under both CPU's max voltage specs. I will try swapping the CPU's over again. It's a pain in the butt though, I'm running out of Arctic Silver. Will let you know how I go

 

But you are pretty damm close to the limt for all 7200s, and above for some.
What did it say on the apckaging/documentation that came with your new processor?

Do you have any facility for reducing the voltage in the bios?

 

Well I lost the documentation somewhere, so I can't tell you what that said about it. I did a little bit of research on the intel site though and came up with VID voltage range of 0.85V - 1.3625V.

I will try lowering the voltage anyway since I am pretty close to pushing the limit even though I have seen many OC reviews pushing the voltage safely up to 1.4V, but I want this thing to work so I'll do what I have to. Will I be risking the performance though? I don't want to drop the voltage and have the E7200 work worse than the E4500. That kind of defeats the purpose of upgrading doesn't it?

I also checked the compatibility against the mobo which is fine according to both Gigabyte and Intel.

Lastly, Intel provided me with some utilities that I thought might come in handy. First was a utility that Identified the system and told me what chipset driver I needed for it so I got the INF Update. Next was a utility that identifies the CPU and tells me whether or not my it is running at Intel's specs or not.

So let me get this straight. I do it like this? go into the BIOS>adjust CPU voltage>install new CPU?

 

One of the sites I looked at noted that Intel say the voltage range is to 1.3625, but on the box it said 1.25 volts as in the boxed item below.

http://www.ginger6.com/intel-core-e7200-1066fsb-skt775-retail-p-30674.html

I note the actual Intelpdf say absolute max 1.5 volts, hence the ability to overclock, but I expect the 'bargain' ones were older or at the lower end as is usual.

Yes reducing the voltage (still in range) in bios with any processor in socket will do.