> ## Documentation Index
> Fetch the complete documentation index at: https://docs.preprod.world/llms.txt
> Use this file to discover all available pages before exploring further.
# Upgrade your dedicated server
Dedicated Server hardware specifications can be upgraded with help from our engineers as a paid service. The internet tariff can be changed independently at no charge.
## Change hardware specifications
Hardware upgrades include: setting up or changing the RAID type, increasing disk volume and count, expanding RAM, converting between SSD and HDD, and installing 10 Gbps network cards.
Select the desired specifications in the [Dedicated Servers catalog](https://gcore.com/hosting/dedicated). 10 Gbps network cards are not listed there but can be installed. New specifications must not be lower than the current ones.
Contact technical support to upgrade the server. Open the **Support tickets** section, click **Add**, and specify the server ID and the desired specifications in the request.
We check whether the server supports the required components and whether they are in stock. If all is available, we begin processing the upgrade. If not, we advise which alternative components can be installed.
We confirm the cost of the new configuration and coordinate the time and date of the upgrade. The server will be unavailable during this period because it must be powered off for component replacement.
A fee applies for the upgrade. The price depends on the account provider: "Gcore USD" — 150 dollars, "Gcore" — 150 euros (the exact amount is confirmed by support). The provider name is visible in the [Gcore Hosting Portal](https://hosting.gcore.com/billmgr) under **Dashboard**. Support sends a payment notification in chat; the funds must be transferred to the account balance before the upgrade begins.
We upgrade the server, verify its performance, and return it to service.
## Upgrade limitations
* When changing HDD disks to SSD or vice versa, the new disks will be blank. Back up the old disks first to avoid data loss.
* If the new specifications include more disks, a different disk type, or more storage than the previous ones, new partitions are not mounted automatically. The logical partitions must be expanded inside the OS or a new partition created manually.
* Upgrades can only increase specifications — components cannot be removed or replaced with weaker ones.
## Billing after an upgrade
The server price increases after an upgrade, and the **End date** is recalculated accordingly. Example: if 300 euros cover rent until the 1st and the upgrade is applied on the 10th with the price rising from 300 to 400 euros, the system deducts 10 days at the old rate from the 300-euro balance. The remaining 200 euros cover 15 days at the new rate, so the **End date** moves to the 26th and the next monthly charge of 400 euros falls on that date.
## Change the internet plan
The Internet tariff (traffic package and bandwidth) can be changed independently in the Hosting Portal.
Click the line with the required server, then click **Edit**.
In the **Add-ons** section, select the desired Internet tariff in the **Traffic** line. The description contains the bandwidth, the included traffic package, and the price for overcommit.
The traffic package covers a calendar month, not a billing cycle. If traffic usage exceeds the tariff limit in a calendar month, the system charges for overcommit.
The **Order Information** section appears with the price and tariff details. Review it and click **To shopping cart**.
Pay for the order. The new internet tariff activates immediately after payment. Further charges occur simultaneously with the server rental write-off, on the date shown in the **End date** column.
