Antec GX505 Window SC Mid-Tower Case Review


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Antec GX505 Window SC System Building Notes

In this section of the review I want to go into some details about building with the Antec GX505 Window SC.


Here is a close up shot of the USB ports, and the tiny little HDD activity LED along the bottom of the photo. At the top is the fan controller switch. It’s a simple 3-way switch. The options are low, off, and high. All the fan leads are labeled so you’ll know exactly what fan is connected and which ones are not.


There are a few things I thought I might mention about the 5.25″ drive bays. As I mentioned before, you have 3 bays available, but the 3rd one is dedicated to a 3.5″ floppy drive. I think Antec really could of ditched this in favor of another 5.25″ bay, or better yet, another 2.5″ SSD drive. Also, at the very top of the case, you can see all the front panel wires spilling out of the area where the top most 5.25″ drive bay is. That mess of wires is going to have to be dealt with if you want to use that top bay. The wires are clumped up and get in the way of the optical drive I tried to install to test clearance.

Connecting optical drives is easy. The white knobs simply screw into the mounting holes on the side of the optical drive. Aligning the drives to the front of the panel should be a breeze since the knobs can slide a few inches in either direction.

The HDD cage at the bottom has enough room for four 3.5″ HDD drives. Sadly, instead of using trays, so that you could use either HDD or SSD drives, we have a snap-on rail system. The rails are imprinted with an ‘R’ and an ‘L’ for which side of the HDD they are to be mounted on. The rails snap on easy enough, then slide in and click into place snuggly. It is a very simple system that allows you to get your HDD drives installed very quickly.

The lone 2.5″ SSD mount on top of the HDD cage doesn’t seem to have been thought out very well. Mounting an SSD requires 2 screws to lock it into place. Which kind of ruins the point of tool-less with all the other drives.

Lastly, on the bottom of the chassis you have a mounting location for another 2.5″ SSD drive. This spot here really seems like it doesn’t belong here. I’ve seen the space behind the PSU used for this before, but with the mounts squarely in the middle of the chassis, it looks like cables connecting to the back of the SSD might get a bit cramped since that space directly behind it is the main area of the cable management space. I think if Antec moved the mounting holes another inch toward the windowed side of the chassis it could lesson those potential problems.


First thing I’d like to mention is the PCI expansion slots. I’m really disappointed in Antec for this one. The PCI slots are the break away type, so once you remove a slot you’ll have to find another PCI bracket if you change configurations and need to cover any of the slots back up again.

Everything else here is fine. Antec has pre-installed standoffs for a full ATX motherboard. The CPU cut-out area of the motherboard tray is generous and shouldn’t get in the way of any aftermarket CPU heat sinks you’ll want to use. I could not find any official CPU heat sink clearance data. But judging from the case dimensions you are not going to stuff anything too large into this case.

There is water cooling grommets just above the 120mm exhaust fan, but the only type of cooler I can feasibly see being used is a 120mm unit mounted in the exhaust fan location. There is just absolutely no clearance in the top of this case to run a 240mm unit. You can tell just by taking a look at where the top mounted fans are sitting in the case compared to where the motherboard input/output shield is going to be mounted. The motherboard sits very high up in the case. If Antec had made this case just another inch or so taller, that option would probably work.

The PSU mounting location is fairly standard. You can mount the PSU with the fan facing down or up. Antec included some nice foam rails for the PSU to sit on giving it some clearance from the bottom of the chassis so you do not scratch your PSU or the case.


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  1. letmepicyou

    Have you considered the possibility that what you call a 3.5″ floppy slot is actually where most folks would mount a 3.5″ card reader?

    1. Jason Maxfield

      You could mount a 3.5″ card reader there. You can also mount a 3.5″ card reader in a 5.25″ slot, since you can get adapters, or even have adapters already included with a 3.5″ card reader. With the brackets already part of the cage, that space is limited in function, and that is my main gripe about the 3.5″ slot.

  2. Himanshu Rawat

    I am unable to screw my GPU (zotac GTX 960) after mounting on the PCI slot. How to fix the GPU in that position any solution?

    1. Jason Maxfield

      This particular case doesn’t have brackets screwed on like most other cases. The brackets have to be popped out to place anything in the corresponding PCI slots lining up with your motherboard. Antec did include screws for the PCI mounting locations once the tabs are popped out.

      Sorry for the late response, I never received the alert in my email for this comment.

  3. mike

    Horrible review. 5.25 is not just for floppy smh. and the ssd spot use thumb screws and its still tool less. just saying.

    1. Jason Maxfield

      Mike, I never said 5.25 was just for floppy. I referenced the 3.5 as a ‘floppy drive mount’. Obviously you can put a card reader in that section. The SSD bays did not use thumb screws. I recently gave this case to a friend for better air flow over her old case, and I installed everything for her.

      Thanks for the feedback.

  4. lemor

    Do you think h100i gtx will fit on the top?


    I’m seriously thinking of buying H100i GTX for my config.

    1. Jason Maxfield

      Lemor, I think if the H100i GTX were to fit at all you would have to install it in a pull configuration. The top section of the chassis has just enough room to mount two 120mm fans. The radiator for the H100i GTX is 276mm wide and would not fit in the top where the fans mount.

      However since the fans are almost flush with the top of the case, there might be room for the 30mm thickness of the radiator below the fans. Antec’s information about water cooling for this case is non-existent. Tech specs mention water cooling grommets and that’s it.

      Careful measurements will be your best guide, if you already own the case. If you have other options open, I would look for a case that specifically lists compatibility with the H100i GTX to ensure a proper installation and functionality.

      1. lemor

        I just check the information you provided. The top fans are just above the motherboard. But there is space below the fan and above the mobo. Any modding advice you would suggest?

        1. Jason Maxfield

          There is space below the fans since the fans are mounted above the roof of the case. Just how much space, that is the question. A lot of how things will fit depends on your motherboard and where your 4/8 pin CPU power are located. The thickness of the radiator could interfere with the 4 pin headers for CPU fans and DIMM slots as well.

          Careful measuring and looking at the layout of your motherboard is all I can suggest to see if the H100i will fit in the case. Also, you might lose out on the top-most 5.25″ drive bay, depending on the orientation of the radiator once installed.

          1. Lemor

            Alright I’ve purchased the radiator. I’ll give it a shot. If it doesn’t work I’ll remove the top cover over the two 120mm(s) and mount them in push pull config. None the less pull (intake).

            Or I’ll buy a new case. What would you suggest?

            1. Jason Maxfield

              Any suggestions I might make would depend on if the cooler fits the case or not. Just have to see what happens.

  5. Joel

    Hello Jason , Do u think that a ASUS GeForce GTX 1070 ROG Strix Gaming would fit into this case? A quick reply would be very much appriciated! //Joel

    1. Jason Maxfield

      Sorry for responding late. My notifications keep ending up in my spam folder… Gmail is being bad.

      Anyhow, to answer your question, the Asus 1070 ROG Strix will fit in that case easily. I checked the specs on the case and it can accommodate GPU’s up to 14.95″ long. The Strix is just under 12 inches.

      The way the Antec GX505 is designed leaves room for long GPU’s since it doesn’t have a drive bay in the way, where your typical single GPU will be seated on your motherboard. This also allows the front-top 120mm fan that is included to blow air directly at your GPU to help keep it running cool.

  6. RoLoX

    can i fix RX 480 in this casing…??

    1. Jason Maxfield

      It depends on which RX 480 you intend to use in the case? Although, as I mentioned in a previous reply, the case can accommodate GPU’s up to 14.95″ in length. The PowerColor Red Devil RX 480 is about 12.2 inches long, and I believe it’s one of the longest RX 480’s on the market, and that one should fit just fine in the GX505.

  7. Emily Stone

    I’m struggling to find much other info on this case online. Did you have any issues getting your fans (other than front, controlled by top switch) running? I haven’t been able to get the other two going.


    1. Jason Maxfield

      Hi Emily,

      I don’t recall how many leads were on the fan connector for the switch. I think the 2 front fans and the rear exhaust were already hooked up to the fan switch. I don’t think there was room for any others. You could use a Y adapter to hook more fans up to the controller.

      Otherwise, you can connect extra fans directly to the motherboards fan headers. With most modern boards you can also set fans to spin (in the BIOS/UEFI) at certain percentages based on thermal output of your CPU or system temps. Using a combination of both you can probably find a good mix of air flow to noise while keeping everything running cool.

  8. Crazed

    I know this is super old but do you know what kind of pins did the fans have? My motherboard has only 1 chassis fan connector, is there any way I can still run all 3?

    1. Jason Maxfield

      You can get a molex to 3 pin adapter for powering the fans. Might need two of them, or one with a Y connector to hook two up to one lead.

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