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Review: Lian-Li O7S aluminum PC Chassis
We have a review on the Lian-Li O7S (PC-O7S) that will shock and awe you. This big aluminum chassis with incredible looks. Based on a revolutionary design this PC case will set a new standard in the industry. Got curious already ? Yeah, you most certainly should be.
Read the full review right here.
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sverek
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Posts: 6070
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#5056995 Posted on: 04/24/2015 07:28 AM
Do these PCI-Express risers affect speed/bandwidth?
ahm, nvm http://lmgtfy.com/?q=do+pci+express+riser+affect+speed
Do these PCI-Express risers affect speed/bandwidth?
ahm, nvm http://lmgtfy.com/?q=do+pci+express+riser+affect+speed
TheSarge
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Senior Member
Posts: 812
Joined: 2008-06-15
#5057004 Posted on: 04/24/2015 08:14 AM
Mmmmmm.... no.
Certainly a pretty case but there a whole bunch of practicality issues that make it a no-sale for me:
1) Optical drive bay is sideways. That's not a good design.
2) PSU is in front so you're blowing hot air inside the case.
3) Only one VGA card possible means no SLI/CF.
4) 4 USB 3.0 ports on the front is nice but why waste the 2 or 3 USB 2.0 pin header pairs on the motherboard? Why are there no USB 2.0 ports on the front/top/side/whatever. For this price I expect at least four USB 2.0 ports.
5) No reset button. While not necessity for the price that they are charging for this thing they can dam well afford to put a reset button on the front
6) The ports and the on/off button is mounted at the bottom of the front panel??? Why? How is that practical? Why would I want to reach all the way down to the bottom of the case so I can access the front panel?
No, sorry Lian-li but I can get eye-candy cases for less from other OEMs that don't put form over function.
Mmmmmm.... no.
Certainly a pretty case but there a whole bunch of practicality issues that make it a no-sale for me:
1) Optical drive bay is sideways. That's not a good design.
2) PSU is in front so you're blowing hot air inside the case.
3) Only one VGA card possible means no SLI/CF.
4) 4 USB 3.0 ports on the front is nice but why waste the 2 or 3 USB 2.0 pin header pairs on the motherboard? Why are there no USB 2.0 ports on the front/top/side/whatever. For this price I expect at least four USB 2.0 ports.
5) No reset button. While not necessity for the price that they are charging for this thing they can dam well afford to put a reset button on the front
6) The ports and the on/off button is mounted at the bottom of the front panel??? Why? How is that practical? Why would I want to reach all the way down to the bottom of the case so I can access the front panel?
No, sorry Lian-li but I can get eye-candy cases for less from other OEMs that don't put form over function.
vbetts
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Posts: 15142
Joined: 2006-07-04
Moderator
Posts: 15142
Joined: 2006-07-04
#5057177 Posted on: 04/24/2015 02:17 PM
Certainly a pretty case but there a whole bunch of practicality issues that make it a no-sale for me:
1) Optical drive bay is sideways. That's not a good design.
2) PSU is in front so you're blowing hot air inside the case.
3) Only one VGA card possible means no SLI/CF.
4) 4 USB 3.0 ports on the front is nice but why waste the 2 or 3 USB 2.0 pin header pairs on the motherboard? Why are there no USB 2.0 ports on the front/top/side/whatever. For this price I expect at least four USB 2.0 ports.
5) No reset button. While not necessity for the price that they are charging for this thing they can dam well afford to put a reset button on the front
6) The ports and the on/off button is mounted at the bottom of the front panel??? Why? How is that practical? Why would I want to reach all the way down to the bottom of the case so I can access the front panel?
No, sorry Lian-li but I can get eye-candy cases for less from other OEMs that don't put form over function.
It has 4 expansion slots, just only comes with one riser.
Other than that I agree with your other points.
Certainly a pretty case but there a whole bunch of practicality issues that make it a no-sale for me:
1) Optical drive bay is sideways. That's not a good design.
2) PSU is in front so you're blowing hot air inside the case.
3) Only one VGA card possible means no SLI/CF.
4) 4 USB 3.0 ports on the front is nice but why waste the 2 or 3 USB 2.0 pin header pairs on the motherboard? Why are there no USB 2.0 ports on the front/top/side/whatever. For this price I expect at least four USB 2.0 ports.
5) No reset button. While not necessity for the price that they are charging for this thing they can dam well afford to put a reset button on the front
6) The ports and the on/off button is mounted at the bottom of the front panel??? Why? How is that practical? Why would I want to reach all the way down to the bottom of the case so I can access the front panel?
No, sorry Lian-li but I can get eye-candy cases for less from other OEMs that don't put form over function.
It has 4 expansion slots, just only comes with one riser.
Other than that I agree with your other points.

TheSarge
Senior Member
Posts: 812
Joined: 2008-06-15
Senior Member
Posts: 812
Joined: 2008-06-15
#5057530 Posted on: 04/24/2015 09:34 PM
It has 4 expansion slots, just only comes with one riser.
Other than that I agree with your other points.
It's not just the one riser that is the problem, it's that you probably want one slot worth of space between your VGA cards so that it's fan can breathe well. If you're running a liqid cooling system then that will probabaly be OK, but all this assumes you have a second PCIe riser.
Also, I don't see how a second riser's ribbon cable could even reach a second card. It's just not long enough!
Oh, and then there's the fact that that riser and it's ribbon cable must be adding a bit of latency (however small) to the interconnect.
It has 4 expansion slots, just only comes with one riser.
Other than that I agree with your other points.

It's not just the one riser that is the problem, it's that you probably want one slot worth of space between your VGA cards so that it's fan can breathe well. If you're running a liqid cooling system then that will probabaly be OK, but all this assumes you have a second PCIe riser.
Also, I don't see how a second riser's ribbon cable could even reach a second card. It's just not long enough!
Oh, and then there's the fact that that riser and it's ribbon cable must be adding a bit of latency (however small) to the interconnect.
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Would have loved to see the Positioning of where the PCI-E card will float a little higher, so the Short Risers will allow a GPU to use the most optimal topmost PCI-E slot.
But looks and seems expensive. But that's what you get for slimming down the chassis to such a degree for it to be shoved in tighter spaces. This is best however laid down flat horizontally IMHO as a flat desktop to reduce the stress of the floating PSU and the GPU.
An included Slimline Optical Disk Drive would be nice to have also considering its price.