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Power Supply Anyone know what kind of PSU this is?

Cyber Locc

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Aug 16, 2017
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Hey guys so Im looking at a case for a new HTPC. I have very specific needs wants and while this case doesnt check all the boxes it checks most :(.

So i need to figure out what Type of PSU it takes, because its strange dimensions. I have had bad experiences with PSUs in the past, so I am Leary of the one offered (although it is the right wattage)

This is the PSU, http://www.istarusa.com/en/xeal/products_simple.php?model=IS-1U50PD8

Also if anyone has a better case option I am up for it. I need it to be Rack size, 2u, by that I mean 3.5inch high tops, and 17 inches wide not less. And no more than 15 inches deep preferably more like 14.

It needs to hold a Itx board, and a full size Dual Slot GPU. IT also needs to have its air passed through the front, so basically a rack case lol. Also has to have a 5.25 drive bay.

This HTPC is being designed to play 4k blurays, It has to be a full size drive, has to have a drive, no question.

My biggest complaint about this case is the front panel is HIDEOUS. I will mod it if need be, though I have yet to decide how to do that lol. Likely will end up, cutting that front panel setup out, and replacing it with a custom made plate that has a Anti Vandal and some USB 3.0s.
 

confusis

John Morrison. Founder and Team Leader of SFF.N
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That PSU is a 1U form factor and probably very, very loud. You could possibly mod the chassis and use a HDPlex or similar AC-DC and DC-ATX solution?
 
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jØrd

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iirc rack mount enclosures are 19" not 17" wide. Anywho, Norco do some 2u chassis that will take ATX PSU's provided they have the fans in the back and not the top. If you could find your way to a low profile PCIe card they might be worth taking a look at.

http://www.norcotek.com/product/rpc-240/
http://www.norcotek.com/product/rpc-231/
http://www.norcotek.com/product/rpc-2304/

they also have a couple chassis that will take either an ATX PSU w/ the fan in the back or a 2u PSU

http://www.norcotek.com/product/rpc-250/

iStar also sell some chassis in 2u that have full height expansion slots, provided you use a riser

https://www.newegg.com/global/au/Pr...99304&cm_re=2u_chassis-_-56-999-304-_-Product
https://www.newegg.com/global/au/Pr...65542&cm_re=2u_chassis-_-11-165-542-_-Product

There is also the occasional chassis to be had on aliexpress if you dont mind the long wait to get them delivered

https://www.aliexpress.com/item/6-h...7703-47e6-9349-ee67614176be&priceBeautifyAB=0
https://nl.aliexpress.com/item/2u-f...3a0b-430b-a6e3-56777472d8b4&priceBeautifyAB=0

All the cases Ive linked use either 2u or ATX PSU's, generally speaking quieter units than their 1u breatherin. There are also other options if your looking for something that will fit in the space but not actually be rackmounted. IIRC the S4 mini clasic takes up a few mm less than a 2u in height when its on its side and requires an DC-DC PSU solution which tend to be fanless and silent.
 

Cyber Locc

Caliper Novice
Original poster
Aug 16, 2017
30
8
That PSU is a 1U form factor and probably very, very loud. You could possibly mod the chassis and use a HDPlex or similar AC-DC and DC-ATX solution?

Now its not a flex Atx, those are 3.5 inches wide, and they really are not loud I have 4 in various servers, swap the fans for some Noctuas and they are super quiet. That thing is 4 inches wide and I have never seen one of those, (nor a 500w flex atx)


iirc rack mount enclosures are 19" not 17" wide.

Rack cases are 17 inches wide, the 19 inches is the rack distance from screw to screw, with the ears on they are a little over 19 inches, however that will not fit between the rails. 17.1-17.4 is the most you can have in between any rails I have ever seen. I know why you would get confused by the fact they call them "19 Inch racks" though. Its just like studs, how they are 16 inch studs that is center to center though, not the space between them, same deal here.

Fun Fact that is why AV receivers and Amps are 17.1-17.4 inches wide, they can all be rack mounted and 95% will sell you rails and ears to do so :).


Anywho, Norco do some 2u chassis that will take ATX PSU's provided they have the fans in the back and not the top. If you could find your way to a low profile PCIe card they might be worth taking a look at.

http://www.norcotek.com/product/rpc-240/
http://www.norcotek.com/product/rpc-231/
http://www.norcotek.com/product/rpc-2304/

they also have a couple chassis that will take either an ATX PSU w/ the fan in the back or a 2u PSU

http://www.norcotek.com/product/rpc-250/

iStar also sell some chassis in 2u that have full height expansion slots, provided you use a riser

https://www.newegg.com/global/au/Pr...99304&cm_re=2u_chassis-_-56-999-304-_-Product
https://www.newegg.com/global/au/Pr...65542&cm_re=2u_chassis-_-11-165-542-_-Product

There is also the occasional chassis to be had on aliexpress if you dont mind the long wait to get them delivered

https://www.aliexpress.com/item/6-h...7703-47e6-9349-ee67614176be&priceBeautifyAB=0
https://nl.aliexpress.com/item/2u-f...3a0b-430b-a6e3-56777472d8b4&priceBeautifyAB=0

All the cases Ive linked use either 2u or ATX PSU's, generally speaking quieter units than their 1u breatherin. There are also other options if your looking for something that will fit in the space but not actually be rackmounted. IIRC the S4 mini clasic takes up a few mm less than a 2u in height when its on its side and requires an DC-DC PSU solution which tend to be fanless and silent.

Ya there is a bunch of cool ones that accept low height GPUs but that is just so darn limiting :p. Currently there is only 1, and that is a 1050ti, not sure thats strong enough for my needs.

Mad VR would chew that card up for breakfast and spit it out, I think. As it pegs my 980ti in my main rig pretty hard. If there was a half height 1070 we would be in business :p.
 

confusis

John Morrison. Founder and Team Leader of SFF.N
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I didn't say it was a flex-atx, i said it was a 1U PSU, which are designed for server use where noise isn't an issue. 1U is not flex-ATX. Trust me.
 

jØrd

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Rack cases are 17 inches wide

This seems fair, it also wouldnt be the 1st time ive quoted dimensions wrong from memory. That said I consider the ears to be part of the dimensions and quickly measuring what i have kicking around here, edge to edge (including ears) everything is pretty much 19" w/in the margin of error i have w/ a cheap tape measure. Im not sure why anyone would really measure w/out the ears, assuming you have a chassis where their removable chances are, if your racking it, your keeping the ears and rails on there.

Anywho, If you absolutely cant go w/ a low profile card then I guess its either a 2u w/ full height slots and a riser:
https://www.newegg.com/global/au/Pr...99304&cm_re=2u_chassis-_-56-999-304-_-Product
https://www.newegg.com/global/au/Pr...65558&cm_re=2u_chassis-_-11-165-558-_-Product

But at this point im going to guess you have your heart set on whatever case it is you already mentioned (you never did link it). If you can go to 3u your choices expand markedly though. I guess there are other options like the MC600 from Logic supply if your not absolutely committed to the minimum width and what you have is a space approximately the same as that required by a 2u chassis as opposed to having 2u of space in a rack (you wernt clear on this either). As for swapping the fans in your PSU, it can be hit an miss. On the one hand if your not going to be running it at load 24/7 and dont mind loosing all your thermal headroom (perhaps you have fantastic HVAC) and your warranty then sure. On the other hand, you loose all your thermal head room, there is a solid chance you will cook it under substantial sustained load, and you loose your warranty. W/ todays PSU's reaching truly obscene levels of efficiency it seems like less of a problem than it was a few years ago but i guess its one of those things where your either happy running the risk or your not. As for me, i cant stand the down time that comes from a blown PSU but YMMV.
 

Cyber Locc

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Aug 16, 2017
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I didn't say it was a flex-atx, i said it was a 1U PSU, which are designed for server use where noise isn't an issue. 1U is not flex-ATX. Trust me.

Ohh, hmm now I need to measure the ones I have lol. As I have 1u servers with what I assumed we're Flex Atxs, I never measured them but 1 case I bought a PSU for and I bought a flex which actually needed a bracket hmm it must need that same 1u.

So maybe the cases that I have are 1us. Learned something new :). Anyway, if they are I silenced those with Noctua A4x20s, all my servers are quiet, even the 1us :p. However it took some modding and alot of Noctuas lol.

My new (to me) Cisco Catalyst 2960x is not quiet, which I plan to fix soon lol.

I could likely mod it for a TFX but they would be limited. I think a seasonic 1u would do.

This seems fair, it also wouldnt be the 1st time ive quoted dimensions wrong from memory. That said I consider the ears to be part of the dimensions and quickly measuring what i have kicking around here, edge to edge (including ears) everything is pretty much 19" w/in the margin of error i have w/ a cheap tape measure. Im not sure why anyone would really measure w/out the ears, assuming you have a chassis where their removable chances are, if your racking it, your keeping the ears and rails on there.

Anywho, If you absolutely cant go w/ a low profile card then I guess its either a 2u w/ full height slots and a riser:
https://www.newegg.com/global/au/Pr...99304&cm_re=2u_chassis-_-56-999-304-_-Product
https://www.newegg.com/global/au/Pr...65558&cm_re=2u_chassis-_-11-165-558-_-Product

But at this point im going to guess you have your heart set on whatever case it is you already mentioned (you never did link it). If you can go to 3u your choices expand markedly though. I guess there are other options like the MC600 from Logic supply if your not absolutely committed to the minimum width and what you have is a space approximately the same as that required by a 2u chassis as opposed to having 2u of space in a rack (you wernt clear on this either). As for swapping the fans in your PSU, it can be hit an miss. On the one hand if your not going to be running it at load 24/7 and dont mind loosing all your thermal headroom (perhaps you have fantastic HVAC) and your warranty then sure. On the other hand, you loose all your thermal head room, there is a solid chance you will cook it under substantial sustained load, and you loose your warranty. W/ todays PSU's reaching truly obscene levels of efficiency it seems like less of a problem than it was a few years ago but i guess its one of those things where your either happy running the risk or your not. As for me, i cant stand the down time that comes from a blown PSU but YMMV.

Ahh yes, if you include the ears it is 19, that is what I meant as well. However the in-between space isn't.

As for the dimensions, no it will not be rack mounted. It will be in the center of my TV Stand so need to have WAF, it will sit on top of my Aircomm T8, which sits on my AVR, so it needs to be the same width to blend in.

2u is as much as I can go, and even that will have 1/4 inch tops from the top of it to the next shelf which holds my center channel speaker. So can't move that, it's also in there tight as possible.

As for the case I was looking at, you actually just linked it. The Istar E20. However that PSU is strange, I can silence it, but it doesn't have PCIE slots. I can molex adapt those I guess, but that's just becoming a pain.

My biggest problem with that case, is those swicthes on the front. I realize that's moddable, and might be what happens. However in it's current state it's pretty ugly lol.

I did ask Istar if they can sell me a custom front plate with no buttons or USB so I can add my own. No reply yet.

The other case I considered was a Silverstone Milo 3 I think? Or 4, the one with door.

It has feet, if I remove those, it might fit, though the top CPU vent would get blocked, but I could add some fans in front behind the door or something.

That is only half Height GPUs though.
 

jØrd

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it will sit on top of my Aircomm T8, which sits on my AVR, so it needs to be the same width to blend in.
Were of different minds here. I did exactly that and went w/ matched widths on my stack and whilst it looked fine it also looked fucking huge, it looked like i had tried to make everything the same width, it looked like it was taking up more room than it needed to. Also, stacking gear on top of each other as opposed to splitting them across a nice heavy shelf unit / AV rack is a great way to pass vibration through which may or may not be a thing you care about.

However that PSU is strange
Perhaps buy it w/out a PSU and then purchase that stand alone. Will give you alot more choice as to what you sling in there. that being said there is nothing wrong w/ adapters, its not like anyone is ever going to see 'em anyway.

I did ask Istar if they can sell me a custom front plate with no buttons or USB so I can add my own. No reply yet.
Given that they dont actually make anything of their own and their whole business model is predicated on rebranding other people stuff and adding markup this seems super unlikely. Even if they had the facilities the cost of doing a one off would likely put it outside of what the vast majority of people would consider reasonable. That being said you can buy totally blank chassis but of course it would take alot of work to turn one into a computer.
https://www.aliexpress.com/item/1pc...7dc9-4bb8-a586-0958c3353fdc&priceBeautifyAB=0

The other case I considered was a Silverstone Milo 3 I think? Or 4, the one with door.
IIRC its the 4 that has a door. If your not 100% committed to a full height GPU this seems like a reasonable approach.

, but I could add some fans in front behind the door or something.
IIRC the vast majority of airflow in that chassis is side to side which may or may not be a problem in your application.

If you spend some time looking around and depending on how the WAF goes you have alot of choices, some better looking than others. Whilst Im just linking stuff from aliexpress because its easy and ive had success buying chassis there before very little of what they sell isnt available from western distributors w/ western brand names and western markup if you spend some time looking around the stores of the usual suspects.
https://www.aliexpress.com/item/2u-...7dc9-4bb8-a586-0958c3353fdc&priceBeautifyAB=0
https://www.aliexpress.com/item/2U-...7dc9-4bb8-a586-0958c3353fdc&priceBeautifyAB=0
https://www.aliexpress.com/item/Ult...d1c3-4057-bd89-5a45c27cdf39&priceBeautifyAB=0
 

Nightblade

Airflow Optimizer
Nov 29, 2017
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....

It needs to hold a Itx board, and a full size Dual Slot GPU. IT also needs to have its air passed through the front, so basically a rack case lol. Also has to have a 5.25 drive bay.

This HTPC is being designed to play 4k blurays, It has to be a full size drive, has to have a drive, no question.

....

@Cyber Locc why does it have to have a 5.25 drive bay? have you ever thought of doing an external solution?
 

Cyber Locc

Caliper Novice
Original poster
Aug 16, 2017
30
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Were of different minds here. I did exactly that and went w/ matched widths on my stack and whilst it looked fine it also looked fucking huge, it looked like i had tried to make everything the same width, it looked like it was taking up more room than it needed to. Also, stacking gear on top of each other as opposed to splitting them across a nice heavy shelf unit / AV rack is a great way to pass vibration through which may or may not be a thing you care about.

Well I would love to not have to stack stuff in the shelves.

Sadly the wife has bad taste in furniture lol.

She chose probably the most unsuitable for AV TV stand I have ever seen lol.

To start the center shelveing inside, was 17.75 inches wide. Even when their is 18.5" between the side doors when closed. So it didn't even look good, I was like why in the hell did they do this lol.

I extended the center :). And made new shelves. I was off by measuring a tad bit on the first hole so just rolled with it. So now the side supports are 19, and the doors go over it 1/4 inch in in it side, which I can live with, better the doors in that way the OG. And it will fit my 18.5 inch center channel.

Then the thing is on feet so sitting 6 inches off the floor, giving me only 18 inches in vertical space and making cable management a huge pain lol.

This thing was definitely designed for the flat screen and sound bar only people, not a True AV junkie :p.

So now, there is 2 wood/glass doors on either side. Which I have lessened their width, so they are about 11.25" wide now each.

I modded the thing more ofc. There is a 3x120 fan grill running down the center of the center shelves for exhausting hot air. The new shelves are exented out with a 1x2, on the backs about 3 inches on either side. So that the fan area has a gap to pull air from the entire center and exhaust it.

The shelves in the side doored areas, are in the center. So I put a grill in the center of each of those, so 4 holes, 4 120mm fans. I shortened the shelves there, to allow a inch between the shelf and the door for air to flow. The backing is black painted 1/4 inch plywood not that cardboard crap lol :p btw.

My plan was Xbox One, in one cubby, PS4 in the other with the bottom shelf fans being intakes, and the top ones being exhaust. The consoles on the top of the shelves and games/controllers accessories ECT in the bottom one.

If I move the consoles to one cubby that complicates my design. I could do that I guess.

I could stack both consoles on top of each other. However the fans become an issue then. I was thinking about doing that but not sure on if it would hurt anything.

The way I planned the fans was AC Inifity USB fans, the 2 set. Each powered by it's Cubby's console, that way the console is on the fans are on.

To move them to 1, I would either have to have both fans exhausting and each console on it's own shelf, or have them stacked, and splice the USB to 2 USBs.

My fear with the later is back feeding USB power if the fans are connected to both the Xbox and the PS4, the power would backfeed wouldn't it? And likely fry the port or fry the device.

My concern with the former, is would they get enough cold air from the door areas. There is about a 1/4 inch gap between the door and top/bottom/hinge side, however is that enough? It would also be a dusty mess all the time, doing that instead of filtered intake fans at the rear.

The advantage to either is freeing up that center area. As we have a Harmony hub that could be moved there along with 1 controller for each console, I could also build a tray above the Harmony hub to hold our HTPC keyboard. I could also use the Bottom of the PC cabinet, for the extra 2 Channel Amp, and the Swicth that are currently bolted to the back of the TV stand lol, and the Mini DSP I plan to get some day.

However then I would need to run the fans in that cubby off the AVR, which is fine as if the HTPC is on so is the AVR. (Not the case for the consoles as my wife and duaghter wacth stuff with them without the AVR)

I would however then need to find a case that would support the cabinets dimensions. Which in my looking also proves difficult :(.

Though I could likely find one easier, any suggestions to the above problems and a cube case that is less than 11"W 9" H 14" D?

I didn't plan on stacking, per se. As much as receiver/AC Infitiy Stack, Shelf, HTPC, Shelf, Center Channel.

If I did stack them like, AVR/ACI, PC, Shelf, Center channel. That would buy me a tad bit of room.

So that would give me 11 5/8" total.

The receiver+AC infInfi is about 7 5/8" giving me 4 inches.


@Cyber Locc why does it have to have a 5.25 drive bay? have you ever thought of doing an external solution?

I have, I have no where to out an External solution is the problem. I am very space limited for a clean and tidy setup. Running USB cords from the HTPC up 10 inches to the top of the TV stand and setting it their isn't going to fly lol.

I am considering dropping the BR drive altogher though, as the requirements to play UHD is pretty absurd. I can play rented discs with the XBO-S, and plan on Ripping my discs anyway.

Suggestions if I drop the Blu-ray? I did see a chassis I really liked but it was thin Mini ITX only :(.