Shutdown Problem after Upgrading to E8400

[JWhit34]

After upgrading the processor on my ECS 945GCT motherboard to an E8400 I have an unusual problem. Everything works great, except when I shutdown the computer. The operating system (Windows 7) closes out, the monitors go into sleep mode, but the computer does not power off. I can force it off by holding-down the power button. This is a minor annoyance, but before I upgrade four other identical machines to the E8400 I want to understand what's going on.

Any suggestions? Thanks...

[idata]

Exactly what is the type of processador and motherboard, please tell me the correct specification, to help. Bye

mailto:StB@N StB@N

[JWhit34]

I am running an Intel Core 2 Duo E8400 on an ECS 945GCT motherboard with 2 GB of RAM and Windows 7. Before upgrading to the E8400 the computer was running an E2220 CPU. With the old CPU, the computer shuts down correctly; with the new one it does not.

[idata]

I have a similar problem with one of my computers, I upgraded the BIOS and the problem went away.

[JWhit34]

I've checked the ECS web site and I have the latest version of the BIOS. There are power control options in the BIOS (and Windows 7), but none seem to address this problem.

[idata]

Based on my experiance, there isn't anything you can do.

Maybe you could ask ECS to fix it, but it depends how well the board is supported now.

[JWhit34]

I fear you may be correct. I am also working this problem from the software (Windows 7) end.

[idata]

The ECS web site for your mb only says it supports core2 processors up to 1066 FSB, and lists up to the E6700. The E8400 spec is 1333 fsb. I don't know if this is the cause, but it could mean the mb doesn't properly support the cpu.

[JWhit34]

Actually, I did not fully describe the motherboard. It is an ECS 945GCT-M/1333. This version of the motherboard supports processors up to the E8600 (according to the ECS web site). Sorry for the confusion.

[JWhit34]

Well, I threw in the towel and replaced the E8400 with an E5200. Everything works fine now. Another mystery I don't have time to deal with!

A good effort, though. I appreciate the help on this forum.