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SER8 8845HS back usb-c port only works at 10gbps

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发表于 2024-11-12 10:36:59 | 显示全部楼层 |阅读模式
Hi,

I recently got this machine and an external drive that should be compatible with USB4 and Thunderbolt 4. The drive works fine on my macs but only works at 10gbps. I keep on getting warning that the device will work at reduced speed. What can I do to resolve this problem?

Best,
Deepak
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发表于 2024-11-12 16:17:28 | 显示全部楼层
Hello there,
could you send us a picture of the SN on the bottom of the PC?
Please turn off the PC , unplug the power supply, and press the CMOS button (if no CMOS button, please put the pin in the CMOS pinhole and press it ) for about 10 seconds , restart the PC after ten minutes.
Here is the tutorial https://mega.nz/file/XypwTISY#DV ... Z7f7qpKGP2E3nMHW8ms
you can also change a TYPE-C cable.
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发表于 2024-11-27 03:33:45 | 显示全部楼层
Edited by cemjack at 2024-11-27 03:38

I am having same issue. I have tried 2 enclosures, 2 different Samsung 990 PRO and multiple cables.
IMG_6427.JPG
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发表于 2024-11-27 16:32:49 | 显示全部楼层
cemjack replied at 2024-11-27 03:33
I am having same issue. I have tried 2 enclosures, 2 different Samsung 990 PRO and multiple cables.

Hello there,

You can try to clear CMOS firstly: First,please unplug the power supply and HDMI cable. Please press the pinhole of "CLR CMOS" with a pin for about 10 seconds.Ten minutes later, plug the power supply and HDMI cable, turn on the PC again.  Please wait about one or two minute, if you can go to the system, Please repeatedly press delete key as soon as your restart the PC, go to BIOS. Go to Boot option, enable fast boot, press F4 to save.  Here is the tutorial https://mega.nz/file/2nIRGaYI#M2 ... pfyHlqyjnn86TypZp2w  

Please uncheck the save energy in the device manager---universal serial bus controller--USB hub---properties--power management---uncheck "Allow the computer to turn off the device to save power"

May I have your external SSD in other machine transmission rate is how much?

Have a nice day!
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发表于 2024-11-27 21:33:29 | 显示全部楼层
Edited by cemjack at 2024-11-27 21:35

I have tried the following enclosures and drives. Please note, I have also tried multiple different cables to ensure that was not the issue including thunderbolt 4 and USB 4 cables. For the enclosure I have used Samsung 990 Pro and WD SN850X.
My speeds are aroung 940 MB/s read and write.
1 - Crucial X10 Pro 2TB Portable SSD - 2100MB/s Read, 2000MB/s

2 - Qwiizlab Fanless 40Gbps USB4 Thunderbolt External SSD Enclosure. It supports data transfer with USB4 and Thunderbolt 4 protocols to achieve soaring sequential read speed up to 40Gbps (3,840/3,840 MB/s).

Thank you.

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发表于 2024-11-28 00:05:11 | 显示全部楼层
tuiguang10 replied at 2024-11-27 16:32
Hello there,

You can try to clear CMOS firstly: First,please unplug the power supply and HD ...

I did as you instructed and I am still only getting 939MB/s read and write.
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发表于 2024-11-28 01:16:56 | 显示全部楼层
cemjack replied at 2024-11-28 00:05
I did as you instructed and I am still only getting 939MB/s read and write.

Maybe this is not even USB4 port, but just USB3 Gen 2 (10Mbps) for data. That produces this kind of speeds. But even Gen2x2 should be 20Mbps.

Others are complaining that when using this USB4 port with eGPU, they only get like 1700MB/s instead of the usual 3000MB/s.

I hope support will provide good news, I unfortunately has no SSD enclosure to test it on mine.
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发表于 2024-11-28 17:36:29 | 显示全部楼层
Hello there,
pls try another USB cable to test it.we use UGREEN CM642 hard drive enclosure+M.2 SSD WD_SLACK SN850X NVMe
SER8后置Type C.png
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