CPU replacemnet and voltage

jriewer · 04-17-2005, 02:32 PM

My p4 2.0 478 is fried so I am looking for a replacement. My original was a SL5YR with a core voltage of 1.5v. I'm eyeing a new P4 2.0 478 SSpec SL6GQ on Ebay, all the specs are the same but its core voltage is 1.525. Would this difference in voltage cause in incompatibility problem?

Thanks

**UncleMacro** · 04-17-2005, 03:18 PM

Socket 478 motherboards read an ID from the CPU to decide what voltage to set. The motherboards are required to be able to adjust the voltage to whatever the CPU asks for. If you're overvolting the CPU to help with an overclock, they ignore the ID and set the voltage to whatever you tell it in the BIOS. There's no compatibility problem. It will just run a tiny bit hotter because of the higher voltage.

jriewer · 04-17-2005, 07:01 PM

Thanks for the very helpful reply.

04-17-2005, 02:32 PM	#1 (permalink)
jriewer Registered User Join Date: Mar 2005 Posts: 9 OS: XP	CPU replacemnet and voltage My p4 2.0 478 is fried so I am looking for a replacement. My original was a SL5YR with a core voltage of 1.5v. I'm eyeing a new P4 2.0 478 SSpec SL6GQ on Ebay, all the specs are the same but its core voltage is 1.525. Would this difference in voltage cause in incompatibility problem? Thanks

04-17-2005, 03:18 PM	#2 (permalink)
UncleMacro TSF Enthusiast Join Date: Jan 2005 Location: San Diego Posts: 2,133 OS: Vista SP1 My System	Socket 478 motherboards read an ID from the CPU to decide what voltage to set. The motherboards are required to be able to adjust the voltage to whatever the CPU asks for. If you're overvolting the CPU to help with an overclock, they ignore the ID and set the voltage to whatever you tell it in the BIOS. There's no compatibility problem. It will just run a tiny bit hotter because of the higher voltage. Last edited by UncleMacro; 04-17-2005 at 03:20 PM.

04-17-2005, 07:01 PM	#3 (permalink)
jriewer Registered User Join Date: Mar 2005 Posts: 9 OS: XP	Thanks for the very helpful reply.