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How do you tell diff between a bad cpu and a bad MB? LP UT nF2 250gb


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When you say 'bad', do you mean overclocking limit? To see what is limiting your overclock, drop your cpu multiplier down low (eg 7X) and run your memory at half speed (eg 200|100). You should be able to pump the HTT speed way up. If you cant, then its likely that your board is limiting you.

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I'm sorry - that wasnt very clear. By 'bad' I mean dead. My sytem won't post. I'm confident that the PS is good, and am fairly confident the memory is servicable. With only CPU, memory, speaker and the PS hooked up, I get no post or beeps. Standby LED is on, but no dram LED. Pressing power cause a 1/2 sec flash on the keyboard LED, other than that, nothing happens. Fans will not spin up. Initially there was momentary movement of the fans, but this only happens after the board has rested for a while. CMOS has been reset. System was stable for 7 months, then one hot day, died in the middle of a game.

 

So I think either the CPU is defective, or the motherboard.

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Send back the one that's closest to being out of warranty first. This should give you time to get the replacement back for further testing.

 

I'm sorry - that wasnt very clear. By 'bad' I mean dead. My sytem won't post. I'm confident that the PS is good, and am fairly confident the memory is servicable. With only CPU, memory, speaker and the PS hooked up, I get no post or beeps. Standby LED is on, but no dram LED. Pressing power cause a 1/2 sec flash on the keyboard LED, other than that, nothing happens. Fans will not spin up. Initially there was momentary movement of the fans, but this only happens after the board has rested for a while. CMOS has been reset. System was stable for 7 months, then one hot day, died in the middle of a game.

 

So I think either the CPU is defective, or the motherboard.

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When you say 'bad', do you mean overclocking limit? To see what is limiting your overclock, drop your cpu multiplier down low (eg 7X) and run your memory at half speed (eg 200|100). You should be able to pump the HTT speed way up. If you cant, then its likely that your board is limiting you.

 

How high of a HTT should these boards handle? I saw this ss:

 

http://valid.x86-secret.com/show_oc?id=27056

 

Are NF4 boards supposed to hit about that high?

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I'm sorry - that wasnt very clear. By 'bad' I mean dead. My sytem won't post. I'm confident that the PS is good, and am fairly confident the memory is servicable. With only CPU, memory, speaker and the PS hooked up, I get no post or beeps. Standby LED is on, but no dram LED. Pressing power cause a 1/2 sec flash on the keyboard LED, other than that, nothing happens. Fans will not spin up. Initially there was momentary movement of the fans, but this only happens after the board has rested for a while. CMOS has been reset. System was stable for 7 months, then one hot day, died in the middle of a game.

 

So I think either the CPU is defective, or the motherboard.

 

what about the diagnostic leds on the mobo?

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