My pc was running fine before I tried upgrading the processor. The motherboard is a 945GCT-M3. I changed the Celeron 420 to a Pentium dual-core E5400. When I upgraded the problem started. I've cant boot on the new/old processor. When it's powered on it sounds like the cpu fan tries to start for a second, then dies for a second, then cpu fan will run. There is no video from the onboard video card. If I take the memory out of the motherboard during boot it will beep twice. My question is the motherboard a new paper weight?
Did you remember to clean off the old thermal compound from both CPU and CPU cooler, then apply a small dab of fresh thermal compound to the new CPU? Also, did you swap the CPUs and install the CPU cooler with the MB out of the case?
If not, the CPU may be overheating and shutting itself down.
------------------------------e2160@3GHz: OCing my way to Ubuntuland!
Reply to Mondoman
The ECS web site lists an e7300 as compatible, so I wouldn't expect the MB to be damaged by installing an e5400, then going back to the original Celeron. Of course, you may have damaged the MB or affected something else in the setup during your manipulations.
However, 3 seconds is MORE than enough time for the CPU to overheat if it doesn't have proper cooling, so you can't say anything unless you've tried the CPU with proper newly-applied thermal compound.
------------------------------e2160@3GHz: OCing my way to Ubuntuland!
Reply to Mondoman
I've got no clarification on what motherboard version I have. The motherboard is stamped with version 3.something and Vista hardware checker stated the version was 1.10. Emachines web doesn't clarify anything about the E5400 chip, but the ECS web states its compatible. As far as I'm consern I won't buy another motherboard from ECS because they dont have good customer service. Still haven't heard back from them in over a week with two different case opened.
I've bought me another motherboard last night. Just was hoping I could have saved the board and used it for something else.
I loaded it about 1 months ago when the new kingston memory upgrade wouldn't let the motherboard boot. then I contacted kingston and they replaced them with a different firmware memory and it would boot. (ECS this is why I will buy from Kingston again.)
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I'm surprised the motherboard booted when the season changes..
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