The problem may be in your enclosure. Is The Thunderbolt firmware up to date?
I haven't tried the thunderbolt port yet, mine is Thunderbolt 3 so not much on the market just yet. Waiting on a dock that is going to be released in April.
Someone on the string of conversions is not playing nicely or is not optimized. Keep in mind that what is going on here is a conversion from PCI to SATA to TB to enclosure to SATA to SSD and then back again. One thing out of whack along the way and it's not going to work right. Being limited to a single device to use in diagnostics limits your ability. If there were several different things to try it would be easier to narrow down what the problem is. Maybe another drive to try in the enclosure? Just because it works fine using another protocol doesn't mean it will work fine in the enclosure.
Someone on the string of conversions is not playing nicely or is not optimized. Keep in mind that what is going on here is a conversion from PCI to SATA to TB to enclosure to SATA to SSD and then back again. One thing out of whack along the way and it's not going to work right. Being limited to a single device to use in diagnostics limits your ability. If there were several different things to try it would be easier to narrow down what the problem is. Maybe another drive to try in the enclosure? Just because it works fine using another protocol doesn't mean it will work fine in the enclosure.
BVr77 wrote:
Let's go for another BLABLABLA ...
and you still give us no drivers version and no firmware revision of the asmedia chipset .....
and the same about Thunderbolt.
so .....
Do you have the same system and enclosure and drive where you can test different drivers to see if that is the problem? Or you just going for another Bla Bla Bla spam post?
From what Ive read he has actually been overly diligent in providing information.
Trying another enclosure could be a step in the right direction. Don't feel too bad, I have to wait because TB3 hasnt hit the mainstream yet. The dock Im waiting for will run 2 4K monitors, or so it says. Not that I would try to put that much burden on a 980M graphics card anyhow.
There are a lot of parameters to take in when talking about the speed of W and R through TB.
1st of all @Jon G - how did you deduct that on the G751 serie TB is 4Gb/s ( i.e bits not bytes ) ?
2nd, AFAIK the G751 got 1st Gen TB, which suppose to give 10Gb/s NOT 20Gb/s as TB Gen 2 (aka Falcon Ridge) suppose to give ( according to this review )
there might be parameters within the driver ( through device manager ) that can be changed like "Override 1st device in chain restriction" which might effect transfer speed.
Also as stated in the mentioned review and I quote:
"I recommend doing is setting theCache-line size to 128 as it seems to affect performance by a fair margin."
Thus, if current bios not allows to play with "Cache-line size" value->a modded bios might give you that ability, as you can see that it is possible to toggle the appearance of "cache-line size" ( at least for the G751JT BIOS which I show in the end of this post ).
There is also another BIOS parameter that might effect external storage behavior like stated HERE under # 177,178 named "TB device i/o resource support", which also appears in the bios's hidden menus.
1st of all @Jon G - how did you deduct that on the G751 serie TB is 4Gb/s ( i.e bits not bytes ) ?
2nd, AFAIK the G751 got 1st Gen TB, which suppose to give 10Gb/s NOT 20Gb/s as TB Gen 2 (aka Falcon Ridge) suppose to give ( according to this review )
there might be parameters within the driver ( through device manager ) that can be changed like "Override 1st device in chain restriction" which might effect transfer speed.
Also as stated in the mentioned review and I quote:
"I recommend doing is setting theCache-line size to 128 as it seems to affect performance by a fair margin."
Thus, if current bios not allows to play with "Cache-line size" value->a modded bios might give you that ability, as you can see that it is possible to toggle the appearance of "cache-line size" ( at least for the G751JT BIOS which I show in the end of this post ).
There is also another BIOS parameter that might effect external storage behavior like stated HERE under # 177,178 named "TB device i/o resource support", which also appears in the bios's hidden menus.
