msi z87x-oc no post

[dellxps15]

hi, i got this motherboard with bent cpu pins. after replace the cpu socket, pc power on but debug card remain on number 15 (like no ram).

if i measure vdimm voltage, i have 1.7volt withour ram and 1.5volt if i insert ram, so ram should be working.

how can i test if it's a cpu oscket problem (maybe i soldered it wrong ) or it's a other problem?

i reprogrammed bios chip, but still the same.

[TechGeek]

Re: msi z87x-oc no post

You probably soldered it wrong, or the CPU's memory controller fried.

[Agent24]

Re: msi z87x-oc no post

Do you have all the other voltage rails for the system?

[dellxps15]

Re: msi z87x-oc no post

ok changed with another socket and still no post . it looks strange since i have soldered plenty of things with my bga rework and all other work were ok.

i got this and another board not working after a socket change. whac can i check to see what is wrong with them ?

[Agent24]

Re: msi z87x-oc no post

Do you have a schematic for it?

[dellxps15]

Re: msi z87x-oc no post

nope... no schematic

[Agent24]

Re: msi z87x-oc no post

Hmm.. all I can think is check all power rails - maybe start with CPU vcore? check VID signals too if that's wrong, check all the main control signals like sm_reset(I think it's called?) etc.

Probably hard without a schematic though. What is the MSI model number (like MS-7166) or such on the board? Might be easier to find a schematic with that.