Acer aspire 4738 not Detecting Both HDD & ODD

[Jayaraj]

Hello friends,
Got one acer aspire 4738, it was not powering ON, I found both PCH(HM55) & Core PWM was short, after replacing both now display is coming, but its not detecting both HDD & ODD, i traced all voltages needed for HDD & 5V is coming, but Data signals missing, gain replaced PCH stiil same issue.
any other solution.

[Domas]

Jayaraj, why you not follow rules?
Please write all information:
1.Model from case
2.Board model/number
3.Describe problem clearly

[rohitgupta935]

Change bios, check sata clock frequency
Otherwise change southbridge IBM

[rohitgupta935]

Change bios, check sata clock frequency
Otherwise change southbridge IBM
Pch hm55

[Dhirendra Gaur]

please upload motherboard pic and part no.

[Jayaraj]

Hello friends,
Got one acer aspire 4738, it was not powering ON, I found both PCH(HM55) & Core PWM was short, after replacing both now display is coming, but its not detecting both HDD & ODD, i traced all voltages needed for HDD & 5V is coming, but Data signals missing, gain replaced PCH stiil same issue.
any other solution.

[ Post made via Android ]

[Jayaraj]

I have uploaded photos
Model no : Acer aspire 4738
Board no : DA0ZQ9MB6C0
Problem : Not detecting HDD & ODD
Work done : Replaced PCH / Reflash BIOS / Checked +5V at HDD Connector present
There is no TX data signal coming from PCH to HDD

[Domas]

Pch new?

[ Post made via Android ]

[esmat-fadak]

I think first was with cleaner if no result
then check the around of pch if any resistance or capacitor missed or removed
I had such case
if not then Rework the pch

[Jayaraj]

Pch new?

[ Post made via Android ]

YES ITS NEW