Hello
is there a fuse because it seems dead.
| Attachments: |
|
IMG_4485.JPG [ 1.95 MiB | Viewed 13730 times ] |
| HDD GURU FORUMS http://forum.hddguru.com/ |
|
| Western Digital SSD M.2 WDS500G2B0B-00YS70 DEAD http://forum.hddguru.com/viewtopic.php?f=10&t=37027 |
Page 1 of 1 |
| Author: | Nicky [ June 29th, 2018, 10:52 ] | ||
| Post subject: | Western Digital SSD M.2 WDS500G2B0B-00YS70 DEAD | ||
Hello is there a fuse because it seems dead.
|
|||
| Author: | fzabkar [ June 29th, 2018, 17:25 ] | |||
| Post subject: | Re: Western Digital SSD M.2 WDS500G2B0B-00YS70 DEAD | |||
Can you measure the voltages across each of the capacitors? Can you identify the markings on the diode and IC1-6? Is there any identifying text near the "test points"? Can you provide more detailed photos of the areas in the attachments?
|
||||
| Author: | Hermes [ July 2nd, 2018, 3:34 ] |
| Post subject: | Re: Western Digital SSD M.2 WDS500G2B0B-00YS70 DEAD |
I've never had a WD SSD in my lab I'm also interested in how this goes for you. Also what controller do they use? |
|
| Author: | fzabkar [ July 2nd, 2018, 19:15 ] |
| Post subject: | Re: Western Digital SSD M.2 WDS500G2B0B-00YS70 DEAD |
Hermes wrote: I've never had a WD SSD in my lab I'm also interested in how this goes for you. Also what controller do they use? IME when people ask, "is there a fuse", that's usually the limit of their ability. Moreover, when the photo lacks any discernible part markings, that's another telling indicator. |
|
| Author: | Hermes [ July 2nd, 2018, 22:55 ] |
| Post subject: | Re: Western Digital SSD M.2 WDS500G2B0B-00YS70 DEAD |
fzabkar wrote: Hermes wrote: I've never had a WD SSD in my lab I'm also interested in how this goes for you. Also what controller do they use? IME when people ask, "is there a fuse", that's usually the limit of their ability. Moreover, when the photo lacks any discernible part markings, that's another telling indicator. I was hoping the OP might want to go further as it does sound like a electrical issue. With a perfect donor and enough parts replaced I can see getting at least a diagnostic hoping the the controller is not damaged in the process. |
|
| Author: | MasterHDD [ July 3rd, 2018, 10:25 ] |
| Post subject: | Re: Western Digital SSD M.2 WDS500G2B0B-00YS70 DEAD |
As far as I know, the controllers on these WD SSDs are encrypted. |
|
| Author: | lcoughey [ July 3rd, 2018, 11:30 ] |
| Post subject: | Re: Western Digital SSD M.2 WDS500G2B0B-00YS70 DEAD |
Western Digital bought SanDisk, thus all their controllers should be SanDisk. |
|
| Author: | fzabkar [ July 3rd, 2018, 16:10 ] |
| Post subject: | Re: Western Digital SSD M.2 WDS500G2B0B-00YS70 DEAD |
lcoughey wrote: Western Digital bought SanDisk, thus all their controllers should be SanDisk. https://www.windowscentral.com/western-digital-3d-nand-blue-review NAND -- SanDisk 64-layer 3D Controller -- Marvell 88SS1074 |
|
| Author: | fzabkar [ July 3rd, 2018, 20:18 ] | ||||
| Post subject: | Re: Western Digital SSD M.2 WDS500G2B0B-00YS70 DEAD | ||||
The WD Black PCIe 512GB SSD uses a Marvell 88SS1093 controller. Its power management IC is "9040VM409". The WD Blue 1TB uses a Marvell 88SS1074 controller and a 9040VM509 PMIC. I suspect that IC1 is a 9040VM509. The "S" logo belongs to Active-Semi Inc. I suspect that the actual part numbers are ACT9040VM409-T and ACT9040VM509-T. I can't find any data at active-semi.com, so I suspect that these ICs may be special orders for WD/SanDisk. The ACT88320QI-T appears to be a similar IC, although it incorporates 3 buck regulators compared with 4 for the ACT9040. However, the ACT88320 does have an EXT_EN pin which enables an external buck regulator. I suspect that the ACT9040 may integrate this additional buck to minimise the part count. The ACT88320 also has 2 internal LDOs, one of which is switched off when the IC is configured for an 88SS1074 controller. I suspect that the ACT9040 would also have an LDO, although it could be external rather than internal. Here is the datasheet for the ACT88320: ACT88320QI-T, Active-Semi, PMU IC, 2.7V - 5.5V in, 1 x 4A buck, 2 x 2.5A bucks, 2 x 200mA LDOs, QFN-32: https://active-semi.com/wp-content/uploads/ACT88320_Datasheet.pdf The part number decodes as follows: Code: ACT88320QIxxx-T ACT88320 = product number Q = package code (QFN) V=VQFN ? I = pin count (32) J=40, M=48 xxx = CMI option T = tape and reel The CMI (Code Matrix Index) option identifies the IC’s default register settings. For example, CMI 105 is optimized for the Marvell Dean 88SS1074 microprocessor.
CMI 103: ACT88320QI103-T -> Atmel SAMA5D21 processor CMI 104: ACT88320QI104-T -> Silicon Motion SM2262 and SM2263 ICs CMI 105: ACT88320QI105-T -> Marvell Dean 88SS1074 microprocessor CMI 108: ACT88320QI108-T -> Silicon Motion SM2258 Therefore, I suspect that the ACT9040VM509 is a 48-pin device with a profile which is optimized for the 88SS1074, whereas the 409 profile is optimized for the 88SS1093.
|
|||||
| Author: | fzabkar [ July 3rd, 2018, 20:32 ] |
| Post subject: | Re: Western Digital SSD M.2 WDS500G2B0B-00YS70 DEAD |
Based on my examinations of other WD SSDs, I suspect that IC4 may be a high-side power switch under the control of the DEVSLP pin. PMPB20XPE, NXP, -20V, -10.3A, P-channel Trench MOSFET, marking 1D, DFN2020MD-6 (SOT1220): https://assets.nexperia.com/documents/data-sheet/PMPB20XPE.pdf http://chip.tomsk.ru/chip/chipfile18-x.nsf/all/C3479264BEB2373C46257DC1001E5E49/$File/PMPB20XPE.pdf I believe that the diode is most likely a 5V or 3.3V TVS diode. |
|
| Page 1 of 1 | All times are UTC - 5 hours [ DST ] |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|