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Can I change processor on the fly?

E

EvilNando

Limp Gawd
Joined
Feb 27, 2006
Messages
387
Naive question of the day

I just dont want to reinstall OS and Im upgrading from an i950 to i970

maybe since Im using windows 7 Ill get lucky?
 
Yeah you can do that, just make sure to load bios defaults if you are overclocking. Windows won't have a problem with that switch.

Typically only really need to format with a board change, although you can sometimes get away without doing that.
 
On the fly typically means while the system is running. In that instance no, you can not. If the system is powered down you can change the CPU and you will not have to reload your operating systems. We haven't had to do that since Windows 2000 came out.
 
Make sure that you unplug the psu and have no other current going into the pc at all. Otherwise, yep.

While running lol. That would be H allright.
 
Theoretically, what would happen if you hot swapped the CPU? Would you get an error message, or would the system turn off instantly?
 
Jimmy the Greek said:
Theoretically, what would happen if you hot swapped the CPU? Would you get an error message, or would the system turn off instantly?
Click to expand...

System shutoff, essentially. Makes the enterprise level hotswappable cpu modules rather amazing.
 
Jimmy the Greek said:
Theoretically, what would happen if you hot swapped the CPU? Would you get an error message, or would the system turn off instantly?
Click to expand...

computer would likely crash as soon as you remove the heatsink. would overheat and shut off in seconds id think
 
If anyone is stupid enough to try this, expect the magic smoke to come out. At worst, the CPU would reach 125C within seconds of removing the heatsink and if #thermtrip doesn't work, byebye CPU. And when the lever is unlatched, either the system will shut off, something will overvolt, or something will short somethinig else out. Might be something to try with an old, partially defective (e.g. bad ram slots) never to be used again socket 775 board (that cant be sold on ebay). Just don't expect it to work after that....
 
Oomps said:
BRB, gonna go try.
Click to expand...

I hope the tried it on his own system :D

Actually, it might be worth trying on my slow ass system my work gave me to use. Everyone else here at least has a E8500 CPU in their systems and they don't feel the need to upgrade mine.
 
Jimmy the Greek said:
Theoretically, what would happen if you hot swapped the CPU? Would you get an error message, or would the system turn off instantly?
Click to expand...

Similar results to someone giving you a brain transplant while you were driving down the freeway :rolleyes:
 
Old trick to fix a corrupted bios chip was to loosen it and swop the bios chip on the fly by first inserting the chip that's not corrupt then when the code is load in the ram to swop it with the corrupted one. It will fix the corrupted bios chip.
But cpu you'll burn your fingers
 
TomGreen321 said:
Typically only really need to format with a board change, although you can sometimes get away without doing that.
Click to expand...

I haven't even had to format my OS with switching motherboards. I've gone from an Asus P6T to an Asus Rampage II Gene, no problem. Have also just gone from that Rampage II Gene to an MSI Big Bang X-Power. Maybe I should format to make sure all the old motherboard drivers are cleaned out, but so far, so good.
 
Ive ran current i5s and i7s without a heatsink. You have about 45-60 seconds. I tried to flash a BIOS at work really quick before i put it all back together. It was one of the BIOS's that take about 3 minutes to flash. Needless to say i smoked an i5 and bricked the board. :D
 
Jimmy the Greek said:
Theoretically, what would happen if you hot swapped the CPU? Would you get an error message, or would the system turn off instantly?
Click to expand...

We did that in college once with an old board and cpu no one wanted. In under a second it started smoking and after that cpu and mb were fried and would never turn on again (didn't actually test a different cpu in the board but seemed like both were fried and definately would not turn on)
 
I switched from an AMD Phenom 2 555BE cpu to a 2500K setup on the same hard drive. (with new motherboard of course)

Haven't had any issues really. I did however uninstalled anything related to AMD and nvidia beforehand.

Do you guys think I should start fresh and reformat anyway?
 
Started a few pcs without a heatsink. Some ran benchmarks without it... just a LN2 pot no heatsink
 
TomGreen321 said:
Yeah you can do that, just make sure to load bios defaults if you are overclocking. Windows won't have a problem with that switch.

Typically only really need to format with a board change, although you can sometimes get away without doing that.
Click to expand...

lol, my main windows install has went i7 930-->Phenom II X2 550BE -->i7 920-->i5 2500k, and awaiting an i7 2600k :p Also HD5770 CF-->HD5870 CF --> GTS250-->HD5550-->HD5770-->GTX460--GTX570. I should be getting all sorts of driver glitches, but I don't.... every few switches prompts windows to reactivate, but that is it.
 
Jared701 said:
We did that in college once with an old board and cpu no one wanted. In under a second it started smoking and after that cpu and mb were fried and would never turn on again (didn't actually test a different cpu in the board but seemed like both were fried and definately would not turn on)
Click to expand...

Intel's new Xeon X7500 series can go hot swap CPU, or something similar. Maybe not fullblown hotswap, but it can accept a CPU going down, and still work (in a multiCPU setup).
 
Neb said:
System shutoff, essentially. Makes the enterprise level hotswappable cpu modules rather amazing.
Click to expand...

But even with these systems you cannot remove the last CPU and still expect the system to be running.
 
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