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Inspiron 3721 (LA-9401P) 7 beeps after CPU replacement https://vlab.su/viewtopic.php?f=41&t=61689 |
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f-bone [ 24 май 2017, 15:15 ] | |
Заголовок сообщения: | Inspiron 3721 (LA-9401P) 7 beeps after CPU replacement |
Hi guys, I replaced the CPU on this one - was shorted before and now I get 7 beeps. The FAN starts, the LED is on but no CPU power. CPU resistance at 3ohms. I lifted PL701 to inject 1V but maximum current drain is 1.75A without anything getting hot. I re-flashed ALL BIOSes including KB9012 but same result. Vron is present at ISL95833 at 3.3V. There is not discrete VGA, only a Pentium CPU (SR0VQ) and SLJ8E. Could it be the SLJ8E? Thank you in advance! br, george |
gevorg-x [ 24 май 2017, 15:35 ] | |
Заголовок сообщения: | Re: Inspiron 3721 (LA-9401P) 7 beeps after CPU replacement |
Flash the BIOS first... |
f-bone [ 25 май 2017, 19:37 ] | |
Заголовок сообщения: | Re: Inspiron 3721 (LA-9401P) 7 beeps after CPU replacement |
I have flashed BIOSes and IO firmware.. |
gevorg-x [ 25 май 2017, 20:48 ] | |
Заголовок сообщения: | Re: Inspiron 3721 (LA-9401P) 7 beeps after CPU replacement |
I think the processor is probably not properly soldered... |
Lex66 [ 25 май 2017, 22:45 ] | |
Заголовок сообщения: | Re: Inspiron 3721 (LA-9401P) 7 beeps after CPU replacement |
May be POST-card show your problem? |
f-bone [ 26 май 2017, 12:16 ] | |
Заголовок сообщения: | Re: Inspiron 3721 (LA-9401P) 7 beeps after CPU replacement |
I will try to resolder the CPU ...also Lex66, I have a POST-card but I never used it yet - I must understand how first. It arrived only last week from supplier. |
Lex66 [ 26 май 2017, 21:56 ] | |
Заголовок сообщения: | Re: Inspiron 3721 (LA-9401P) 7 beeps after CPU replacement |
With post-card you will see post-code of error, and it can help... |
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