Bdl50 la-0704p dead

[ravi_1617]

Hi
la-704p board is dead ,
19 volts ok .
No 3.3. or 5 volts
Coil (LP 602 ) Shows 0 Ohms Reading ,after opening 1 side of coil , towards CPU SAME value 0 Ohms.

is CPU SHORT ?

[ravi_1617]

Re: Bdl50 la-0704p dead

No one to reply ..

[zpi]

Re: Bdl50 la-0704p dead

Probably, check on google usual ohms to ground on this cpu. Also hoe many ohms to ground.on 3.3v and 5v?

[ravi_1617]

Re: Bdl50 la-0704p dead

Update .. Coil PL9 (3R3) also showing 0 ohms ref to ground,after opening PJP2 .Coil side ok .

[sopik78]

Re: Bdl50 la-0704p dead

If you have 0 ohms to CPU side, CPU is definitely shorted. Just test it with power on coil if CPU is getting hot.

[zpi]

Re: Bdl50 la-0704p dead

0ohms does not indicate bad cpu, need to compare with working cpus. Some of CPUS has very low ohms to ground on vcore.

[piernov]

Re: Bdl50 la-0704p dead

Skylake is typically around 6 ohms to ground on CPU VCore.

[ravi_1617]

Re: Bdl50 la-0704p dead

Just Resistance reading

[ravi_1617]

Re: Bdl50 la-0704p dead

If you have 0 ohms to CPU side, CPU is definitely shorted. Just test it with power on coil if CPU is getting hot.

Injected power nothing heating .
Around 1 to 1.3 volt consumes 0.67 to 0.75 Amps maximum

[tahc81]

Re: Bdl50 la-0704p dead

Hi, having the same board on a desk (i5-6200U), with same issue. Let's inject more amps, I've used ~3A to have ~4W for dissipation, then you can identify source easily. In my case it's smaller die on a CPU package. Strange that is probably third board with 6th Gen Intel with same issue.

EDIT: also have short on +1.0V_PRIM rail

[RichBon]

Re: Bdl50 la-0704p dead

i am also having the same board but it shutdown with the information cool system but the fan works well i have change fan and heat sink still the same. the ec pin 26 gives me 1.47v