Upgrade TVS-682 or buy new replacement

[Enquiries]

Hi NAS Compares,
Having heavily invested in the TVS-682 and Expansion unit TL-D800S-N990 I have now got to the stage that capacity is sufficient however the CPU running at 80-90% performance currently i3 is sometimes pressed especially by:
1) Qsync which often sits at 50-55% of CPU usage with current memory 2 off 8GB which only uses 5gb of the 16 available -
2) Surveillance Staition 20cameras ethernet which we are looking to use a dedicated CCTV Recorder DS-7732NI-M4 HIKVision 32-ch 1.5U 8K NV

Kindly ask in my opion I researched to upgrade CPU to say Intel® Core™ i7-7700 processor

The QNAP NAS is used mainly for the business back up mainly Medical Records as I do not trust the coal mine servers - however I also use personally for my photography aswell editing software on my PC and then storage on NAS

Kindly ask you for your honest opinion to upgrade NAS and ancillary Fans, Memory, Motherboard, and any advice for further improvements I would very much appreciate.
Thank you
Mark

[ed]

Thanks for the detailed rundown. I know the TVS-682 well and you have pushed it about as far as it realistically wants to go. The i3 version simply does not have enough overhead once you start running Qsync heavily and add Surveillance Station with twenty cameras. Qsync alone can chew half the CPU on that platform and Surveillance Station scales badly on older Intel dual core chips, so it is not surprising you are hitting ninety percent usage.

On the CPU upgrade question, the TVS-682 does technically use an LGA1151 socket and some community users have successfully installed an i7-7700, but QNAP never officially supported CPU swaps. That means the NAS might boot, but it can also be unstable, overheat, or fail firmware updates because the BIOS is not designed for the higher TDP or microcode. Some people get away with it, others end up with a bricked unit. For a machine holding medical records and business files I would not rely on an unsupported upgrade path.

Given your workloads I would look at moving to a newer QNAP platform rather than trying to rebuild the 682. The TVS-h674 and TVS-h874 models have up to Intel Core i5 and i7 processors with far more power for Qsync, ZFS snapshots, containers, photo work and multimedia. They also let you expand RAM properly and add PCIe upgrades if you want cache or faster networking. Since you already have the TL-D800S you can continue to use it as a direct attached backup unit, so none of that investment is wasted.

For Surveillance Station it also makes sense to offload the heavy lifting. Using a dedicated NVR like your Hikvision DS-7732NI-M4 will free the NAS from decoding or indexing camera feeds, which will immediately lower CPU load. This way the new NAS becomes your file server, photo archive and business backup centre without running at the edge all the time.

If you want the simplest path I would choose the TVS-h674 or TVS-h874 depending on bay count requirements. Both have much stronger CPUs than the old i3 and give you a long runway for future workloads.

Here are the Amazon links for the models mentioned:

QNAP TVS h674
https://www.amazon.com/s?k=QNAP+TVS+h674...=ncmail-20

QNAP TVS h874
https://www.amazon.com/s?k=QNAP+TVS+h874...=ncmail-20