Help
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 

Asus G751JT, Does it really has PCIE 3.0 or PCIE 2.0 - solved?

bmbk2017
Level 7

‎07-06-2017 05:35 AM - last edited on ‎03-06-2024 08:44 PM by Community Admin

Hi.

My bios is showing the only Gen1 and 2 as selectable option for the PCIE speed. Does this laptop really have PCIE 3.0 Ports ?

Trying to get this sorted for my M.2 SSD speed.

65791
Labels:
0 Kudos
3,860 Views
5 REPLIES 5

warryabel
Level 7

‎07-06-2017 05:55 AM

are u happy now? pcie3
0 Kudos

Bill
Level 7

‎07-12-2017 01:09 AM

Hello bmbk2017
I've consulted our team about this
It's confirmed that this model does not support Gen3
Thank you
0 Kudos

JustinThyme
Level 13

‎07-12-2017 04:38 AM

The G751s are Gen 2. The Gen 3 didn't show up until the G752 late in 2015. The G751 is now several generations old and Gen 3 did not exist at the time of this machines launch in 2014.
Be careful on which M2 drive you choose as when this machine was released M2 was in its infancy and protocols changed very fast! An NVMe drive will NOT work. The Samsung SM951 AHCI version is about the best you can get for that machine but extremely hard to find now, when you do find them they are more costly than the current much faster NVMe drives of the same size.



“Two things are infinite: the universe and human stupidity, I'm not sure about the former” ~ Albert Einstein
0 Kudos

bmbk2017
Level 7
In response to JustinThyme

‎07-12-2017 04:54 AM

Thanks guys for the reply 🙂

I was searching for a AHCI SM961 which was rare and expensive like you said, but I got a really good deal on a SM961 NVME 256GB. Somehow managed to got it working pretty easy using nvme module injection in the bios file. The boot everything was pretty straight forward and has been happy so far with the m.2 drive compared to the stock SATA SSD i had.

Although the speed is not as i expected (like 2100 MBPS ?) as i thought i need to manually configure the speed to gen3. But nevermind the current speed are fast enough for me.

65943
0 Kudos

fintux
Level 7
In response to bmbk2017

‎02-17-2019 06:07 AM

I've bought my machine in 2014, and this is a G751JT (but there are several subtypes - for example, some later ones came without the M.2 connector, and also some had G-Sync etc.). Running lspci in Linux lists some quite weird results for me:

sudo lspci -vv | grep -E 'PCI bridge|LnkCap'
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06) (prog-if 00 [Normal decode])
LnkCap: Port #2, Speed 8GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <256ns, L1 <8us
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5) (prog-if 00 [Normal decode])
LnkCap: Port #1, Speed 5GT/s, Width x2, ASPM L0s L1, Exit Latency L0s <1us, L1 <16us
00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #3 (rev d5) (prog-if 00 [Normal decode])
LnkCap: Port #3, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <16us
00:1c.3 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #4 (rev d5) (prog-if 00 [Normal decode])
LnkCap: Port #4, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <16us
LnkCap: Port #0, Speed 8GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <512ns, L1 <16us
LnkCap: Port #0, Speed 8GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <512ns, L1 <4us
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <4us, L1 <32us
pcilib: sysfs_read_vpd: read failed: Input/output error
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s unlimited, L1 <64us

Also the NVIDIA X Server Settings claims that I have a x16 Gen 3 PCIe link. I don't know - maybe these results are bogus. At first I thought even the CPU type is wrong (this certainly isn't a Xeon system), but it is showing that either Xeon or "4th Gen Core Processor" - and the latter is true.
0 Kudos