![]() ![]() I was able to get the VID & PID from the other laptop, but PCI database and google only show it is an Intel device. Various other details show USB root hub, and no version of the driver seem to be correct. Problem is Im not really sure what device this is. Upon checking the details, I see "Windows has stopped this device because it has reported problems (Code 43). The other laptop still has no USB functionality. That worked on one laptop, i was able to use USB devices, even thought the unknown device came back on the next boot, but USB still worked. I found on another forum that another user with the same issue on the laptop fixed it by forcing the driver to USB root hub. I did all the lete/redetect, install chipset drivers, etc.but nothing worked. I noticed in device manager that there was an unknown device in the USB section. Windows made no visual or audio cues to show it was aware anything was plugged in. Mice, keyboards, thumbdrives, nothing worked. I noticed right away that none of the USB ports on the laptops worked (ive never tried them before). We keep them mainly because some of our older software does not like USB to serial adapters and these laptops have a physical serial port.Īnyway, I took these out of storage recently to update and get them ready for use. All modules listed are qualified to work in your HP ProBook 6550b.I have two older laptops (HP Probook 6550b) that we keep in inventory for our technicians to use older software tools on (HVAC control software). Our goal is to give you confidence when purchasing HP ProBook 6550b upgrades. Some purchase by original module part number. Why are there so many HP ProBook 6550b upgrade options? It is not required, but it is recommended to load the channels similarly if possible.To maximize performance, balance the total memory capacity between all installed processors.If only one processor is installed in a two CPU system, only half of the DIMM slots are available.Do not install DIMMs if the corresponding processor is not installed.Install DIMMs starting furthest from the processor. ![]() General DIMM population guideline for HP ProBook 6550b upgrade to consider. If you need tech support, please contact us. If you are unsure what you need, please refer to your 6550b manual or data sheet. Some servers often have various configurations and versions. What HP ProBook 6550b memory speed is supported?ĭDR3-1333 Why may there be various speeds of HP ProBook 6550b memory? As more memory is required different density and technologies are needed. SODIMM Why are there various DIMM types supported?įactory configured 6550b systems often have smaller, less expensive modules. Learn more about HP ProBook 6550b memory What HP ProBook 6550b DIMM type is supported? ![]()
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