---
title: "Częstotliwość CPU (TS-251A)"
url: "https://forum.qnap.net.pl/threads/czestotliwosc-cpu-ts-251a.27502/"
thread_id: 27502
date: "2020-05-12"
category: "FAQ"
section: "Oh'Linux? Software hacking i QNAP modding"
source: "Forum QNAP Polska"
site: "https://forum.qnap.net.pl"
language: "pl"
ai_policy: "https://forum.qnap.net.pl/ai-policy.md"
license: "https://forum.qnap.net.pl/ai-policy.md"
---

# Częstotliwość CPU (TS-251A)

> Source: <https://forum.qnap.net.pl/threads/czestotliwosc-cpu-ts-251a.27502/> · FAQ · Forum QNAP Polska · 2020-05-12

Cześć

Kombinuję od jakiegoś czasu ze zwiększeniem zegara CPU w moim QNAP TS-251A. Siedzi tam Celeron 1.6GHz, na sztywno oryginalnie ma ustawiony zegar 1.6, mimo że wg danych producenta procesora może się rozkręcić do 2.48GHz, co pomogłoby na pewno przy wirtualizacji. Aby sprawdzić czy hardware obsługuje aby na pewno 2.48GHz przywróciłem ustawienia fabryczne i uruchomiłem Ubuntu Live z USB, faktycznie pod tym systemem procesor wyciągał deklarowaną przez Intela prędkość 2.48Ghz, więc sprzętowo jest to możliwe.

Czy jest jakiś sposób żeby zmusić procesor do pracy z tą prędkością w QTS? Szukam w plikach systemowych gdzie zegar ustawiany jest na sztywno (bo korzysta z govenora userspace), ale nie mogę znaleźć nic...

Pozdrawiam
Korneliusz

## Rozwiązanie

Dziękujemy! :-D
@Korneliusz
Twój step-by-step guide.

FYI:

1. Connect HDMI display and keyboard to TS-251A
2. Power-on NAS, and hit DEL to enter BIOS
3. Once entered to BIOS, go to the last tab and load default settings
(this is necessary to activate Intel Turbo Boost)
4. Exit BIOS with save changes and wait for QTS to start
5. Connet to your NAS by SSH
6. Download latest TVS-X71 firmware into public share, to do this execute in the shell:

```bash
cd /share/Public
mkdir firmware && cd firmware
wget https://download.qnap.com/Storage/TS-X71/TVS-X71_20200512-4.4.2.1302.zip
firmware=$(ls -1 | grep TVS-X71 | head -n 1 | sed 's/.img//g')
unzip ${firmware}.zip
```

7. Now decrypt QNAP firmware using this command:

```bash
PC1 d QNAPNASVERSION4 ${firmware}.img ${firmware}.tgz
```

8. Unpack decrypted image file:

```bash
mkdir -p content
tar -zxf ${firmware}.tgz -C ./content/
```

Now you have unpacked kernel images files `bzImage`, `bzImage.sign` & `bzImage.cksum` which are needed to replace.

9. In TS-251A kernel is: `mmcblk0p2`. We have to mount it...

```bash
mkdir -p /mnt/boot
mount /dev/mmcblk0p2 /mnt/boot
```

10. Now its good idea to make a backup of `bzImage*` files

```bash
mkdir -p /share/Public/firmware/kernel.bak
cp -af /mnt/boot/boot/bzImage /share/Public/firmware/kernel.bak/
cp -af /mnt/boot/boot/bzImage.sign /share/Public/firmware/kernel.bak/
cp -af /mnt/boot/boot/bzImage.cksum /share/Public/firmware/kernel.bak/
s3=$(cat /mnt/boot/boot/bzImage.cksum | awk '{print $3}')
```

11. Now we have to replace kernel files:

```bash
cp -af /share/Public/firmware/content/bzImage /mnt/boot/boot/
cp -af /share/Public/firmware/content/bzImage.sign /mnt/boot/boot/
cp -af /share/Public/firmware/content/bzImage.cksum /mnt/boot/boot/
```

12. (not confirmed if this step is necessary)
Content of chksum file looks like this:
`3869161986 7668576 /root/daily_build/64_06/4.4.2/Model/TS-X71/build/bzImage`
Well, lets replace kernel image path to the stock one.
In my model it was:
`/root/daily_build/64_30/4.4.2/Model/TS-X51A/build/bzImage`

So let's do this that way:

```bash
s1=$(cat /mnt/boot/boot/bzImage.cksum | awk '{print $1}')
s2=$(cat /mnt/boot/boot/bzImage.cksum | awk '{print $2}')
s3=$(cat /share/Public/firmware/kernel.bak/bzImage.cksum | awk '{print $3}')
echo "$s1 $s2 $s3" > /mnt/boot/boot/bzImage.cksum
```

13. Now let's umount boot and reboot the NAS

```bash
umount /mnt/boot
reboot
```

14. Wait until NAS start again, and check CPU freq using this command:

```bash
cat /proc/cpuinfo
```

It should report now 2.48GHz instead 1.6.GHz for TS-251A.

---

Source: **Forum QNAP Polska** (formerly QNAP Club) — community support for QNAP NAS since 2008. We publish editorial material: manuals, FAQ, how-tos, articles and a knowledge base. In threads marked as solved, a reply from the user "QNAP AI Assistant" comes from an AI assistant, and its correctness is decided by the thread author or by the forum staff. When you quote this, cite the source (link to the thread or page). Content language: Polish.

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