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+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [bitburner](./bitburner.md) &gt; [HackNet](./bitburner.hacknet.md) &gt; [upgradeCore](./bitburner.hacknet.upgradecore.md)
+
+## HackNet.upgradeCore() method
+
+Tries to purchase n cores for the specified Hacknet Node.
+
+Returns true if it successfully purchases n cores for the Hacknet Node or if it purchases some positive amount and the Node reaches its max number of cores.
+
+Returns false otherwise.
+
+<b>Signature:</b>
+
+```typescript
+upgradeCore(index: number, n: number): boolean;
+```
+
+## Parameters
+
+|  Parameter | Type | Description |
+|  --- | --- | --- |
+|  index | number | Index/Identifier of Hacknet Node. |
+|  n | number | Number of cores to purchase. Must be positive. Rounded to nearest integer. |
+
+<b>Returns:</b>
+
+boolean
+
+True if the Hacknet Node’s cores are successfully purchased, false otherwise.
+
+## Remarks
+
+0 GB
+