Dell 3521 with 7 Beeps

[raajkumar]

Hi i am having problem on Dell 3521 is giving 7 beeps and no +VCC_CORE and +VCC_GFX_CORE_AXG. Did anyone having same experience. I found a video it says to correct 7 beeps to flash ec controller. Is it will help me ? actually i don't have ec programmer. i have only TL866cs.

[raajkumar]

Re: Dell 3521 with 7 Beeps

i replaced PU700 ISL95833HRTZ-T chip also. nothing changed.

[mcplslg123]

Re: Dell 3521 with 7 Beeps

I think either the onboard processor has failed or PCH failure.

[subroto]

Re: Dell 3521 with 7 Beeps

Reball the processor. If no change will be happened, then replace it. Your problem will be solved.

[naeemshahzad]

Re: Dell 3521 with 7 Beeps

flash the two bios one is near pch 25q16 and other side have 25q32 flash

[raajkumar]

Re: Dell 3521 with 7 Beeps

flash the two bios one is near pch 25q16 and other side have 25q32 flash

Thanks for supporting. I already done to both bios. its not helped. i don't know those dumps were working or not. Can you send it to me

[lvalius]

Re: Dell 3521 with 7 Beeps

Once I have solved 7 beeps with just heating cpu, reball is not necesary.

[raajkumar]

Re: Dell 3521 with 7 Beeps

I reflow to CPU and PCH Nothing changed. Also I flashed both bios 25q16 and 25q32 but no use. i try to inject +VCC_CORE by +0.91V its not shorted. So i thing the cpu not shorted. Now i have only one think to do it, that is reprogram the io chip ( KB1902 )