# Show System Capabilities

Shows the platform supported Intel Optane DC persistent memory capabilities across the server.

```
ipmctl show [OPTIONS] -system -capabilities
```

## **Example**

```
$ ipmctl show -system -capabilities

PlatformConfigSupported=1
Alignment=1.0 GiB
AllowedVolatileMode=Memory Mode
CurrentVolatileMode=1LM
AllowedAppDirectMode=App Direct
```

## **Return Data**

* `PlatformConfigSupported`: Whether the platform level configuration of persistent memory modules can be modified with the host software. One of:
  * 0: Changes must be made in the BIOS.
  * 1: The command Create Memory Allocation Goal is supported.
* `Alignment`: Capacity alignment requirement for all memory types as reported by the BIOS.
* `AllowedVolatileMode`: The volatile mode allowed as determined by BIOS setup. One of:
  * 1LM: One-level volatile mode. All memory resources in the platform are independently accessible, and not captive of the other resources.
  * Memory Mode: Modules act as system memory under the control of the operating system. In Memory Mode, any DDR in the platform will act as a cache working in conjunction with the persistent memory modules.
  * Unknown: The allowed volatile mode cannot be determined.
* `CurrentVolatileMode`: The current volatile mode. One of:
  * 1LM: One-level volatile mode. All memory resources in the platform are independently accessible, and not captive of the other resources.
  * Memory Mode: Modules act as system memory under the control of the operating system. In Memory Mode, any DDR in the platform will act as a cache working in conjunction with the persistent memory modules.
  * Unknown: The current volatile mode cannot be determined.
* `AllowedAppDirectMode`: The App Direct mode allowed as determined by BIOS setup. One of:
  * Disabled: App Direct support is currently disabled by the BIOS.
  * App Direct: App Direct support is currently enabled by the BIOS.
  * Unknown: The current App Direct support cannot be determined.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.pmem.io/ipmctl-user-guide/module-discovery/show-system-capabilities.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.