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Studio XPS 435T / 9000 - PCI-e 2.0 Speed Issue
I just purchased a Startech SATA 6 GBps PCI Express controller card in order to install a new Samsung 850 SSD drive and run at SATA 3 speeds. However it does not appear that the controller card is getting PCIe 2.0 speeds. The controller card is reporting currently 2.5 GBps (PCIe 1.1 speed). When I run performance benchmarks on the drive, I'm only getting about half of the max speed of the drive.
From everything that I read, it appears that my original motherboard is PCIe 2.0 capable. Can you please confirm this. Any other advise would be welcomed as well.
Thanks.
lrupe
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August 4th, 2015 13:00
Sorry, if I my speeds were confusing (it was late at night). The transfer speed that I'm trying to accomplish is 5 Gbps and my main question is whether or not this PC supports PCIe 2.0 or 1.1.
The PCIe 2.0 standard came out in 2007 and I bought this PC in 2009. Also, the following link for my motherboard claims that it is PCIe 2.0 - However, I am only getting 2.5 Gbps transfer speed from the x1 PCIe SATA controller card. http://www.intel.com/content/www/us/en/chipsets/workstation-chipsets/workstation-chipset-x58.html .
speedstep
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47K Posts
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August 3rd, 2015 08:00
You won't get Sata3 speed out of a PCI-E 1X slot. You need at least an X4 PCI-E card using raid to get the speed that you are asking for. You are trying to WISH 2015 4th Gen INTEL chip set features into a 2009 machine. You are also mixing and matching Mega BITS per second with Mega BYTES per second. Mega Bytes is 8 X faster than Mega BITS. 600 Mbps is not happening with PCI-E X1 unless you have PCI-E version 3 Cards and Bus and CPU and chipset. You do have an X8 slot so you could get a better card but it wont be cheap.
The Big B is Bytes and the Little b is bits being 10x or more slower. You are putting 6GBps moniker on your card when its not going to get anywhere near that with an X1 slot. 6GBps = X16 card not X1.
http://www.newegg.com/Product/Product.aspx?Item=N82E16816151136
Typical unit has XPS 435T/9000 Core i7 920
Not a Socket 1150 Core I7 4790K
Techgee
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December 31st, 2015 18:00
The 435T/9000 supports PCIe 2.0. But, you'll need to put that card in the x8 PCIe slot to get decent speeds.