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Thread: help choosing case??

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    Question help choosing case??

    I'm looking to get an i7 build from scan computers over the next month. mainly used for gaming and occasional video processing.
    My main components will be:

    i7 920 o/c to 3.9ghz with an H50 cooler
    rampage II extreme motherboard
    6gb 1600mhz memory
    ATI 5870, crossfire down the line
    1000watt psu

    i'm stuck between two cases: the corsair obsidian 800D or coolermaster atcs 840.
    The obsidian looks better but the intakes from the bottom are a concern especially for the GPU. Combined with the H50 cooler it should reduce temps greatly.

    The coolermaster, not as great looking, but airflow seems better and theres the extra accessory for gpu cooling.

    Would appreciate any opinions? Many thanks.

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    Re: help choosing case??

    Let's try again, was interrupted mid-edit.

    For air cooling and bang for buck I'd probably say the ATCS840. It's aluminium (for those that care and prefer it), cheaper, and superior in the air cooling department. Based on reviews on the Net, the 840 offers notably better air cooling performance the 800D so that's something to keep in mind. Looks are very subjective but in that department I'd have to give it to the 800D. All depends on your preference.

    I wanted hot swap bays (among other things) and the 800D implements this in a very clean fashion. Coupled with looks it won over the various cases I was considering, including the ATCS840 and the TJ07. Without knowing your priorities in terms of what features you value more it's hard to give useful advise. On a general basis I would say the ATCS840 is the way to go but I'm also an 800D owner .
    Last edited by Bugbait; 28-12-2009 at 09:12 PM.

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    Re: help choosing case??

    Well if you're looking at throwing that much money at a case, go with your gut.

    Cooling will not be an issue with ether, Yes the obsidian is designed bottom to top air flow not front to back, but it is a very well designed chamber system and your graphics cards are not going to suffor from lack of cooling.
    If you are turely worried then there more than enough room to fit something like the Zalman BR123 overhead fan bracket in there, for extra air flow over cards.
    One thing I will mention about the obsidian is that it does seem to be aimed at water cooling.

    EDIT: PS 1000w psu is overkill even with 2x 5870 in there.

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    Re: help choosing case??

    ATCS 840 is soooooo cool
    If I had the money *drooool*
    The mobo tray on ball bearings seals it for me it really has the wow factor

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    Re: help choosing case??

    Quote Originally Posted by Pob255 View Post
    Well if you're looking at throwing that much money at a case, go with your gut.

    Cooling will not be an issue with ether, Yes the obsidian is designed bottom to top air flow not front to back, but it is a very well designed chamber system and your graphics cards are not going to suffor from lack of cooling.
    If you are turely worried then there more than enough room to fit something like the Zalman BR123 overhead fan bracket in there, for extra air flow over cards.
    One thing I will mention about the obsidian is that it does seem to be aimed at water cooling.

    EDIT: PS 1000w psu is overkill even with 2x 5870 in there.
    thanks i havent seen that zalman product before, its better designed than the accessory with the coolermaster, although i guess it will use up the pci slot completely.
    im starting to lean towards the obsidian now especially considering that ill be choosing the H50 for cooling.

    i just did a quick google check; even a 750W should be sufficient

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    Re: help choosing case??

    Quote Originally Posted by Bugbait View Post
    Let's try again, was interrupted mid-edit.

    For air cooling and bang for buck I'd probably say the ATCS840. It's aluminium (for those that care and prefer it), cheaper, and superior in the air cooling department. Based on reviews on the Net, the 840 offers notably better air cooling performance the 800D so that's something to keep in mind. Looks are very subjective but in that department I'd have to give it to the 800D. All depends on your preference.

    I wanted hot swap bays (among other things) and the 800D implements this in a very clean fashion. Coupled with looks it won over the various cases I was considering, including the ATCS840 and the TJ07. Without knowing your priorities in terms of what features you value more it's hard to give useful advise. On a general basis I would say the ATCS840 is the way to go but I'm also an 800D owner .
    no worries thanks for the reply, that does seem to be the general consensus with the 840 giving better air cooling. Although its likely i'll be getting an H50 cooler which would complement the obsidian better and bring the cooling to a more acceptable level.

    can i just ask which graphics setup you are using and have you had any problems with the temperature? this is a real concern for me because i'm considering a potential 5870 crossfire or if i can stretch my current budget, a single 5970.

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    Re: help choosing case??

    Quote Originally Posted by abs_rio View Post
    no worries thanks for the reply, that does seem to be the general consensus with the 840 giving better air cooling. Although its likely i'll be getting an H50 cooler which would complement the obsidian better and bring the cooling to a more acceptable level.

    can i just ask which graphics setup you are using and have you had any problems with the temperature? this is a real concern for me because i'm considering a potential 5870 crossfire or if i can stretch my current budget, a single 5970.
    The cooling options on the ATCS840 are equal to or better than the 800D, arguably with a water solution as well. The H50 can be attached to the rear (at CPU level) of the ATCS840, just as it would on the 800D. The ATCS840 also has a bottom 120 intake, just like the 800D as well as both supporting a triple radiator (120.3) solution for the roof if desired. The ATCS840 offers a 230 intake on the front which the 800D doesn't have. Depending on your hardware configuration, this may make a notable difference in favour of the ATCS840.

    I'm running an overclocked 5970 in its own water loop, cooled by a 120.3, roof mounted radiator. The temperature isn't a problem as the radiator is arguably overkill. Been running FurMark on Xtreme Burning Mode for a past few hours and the GPU's read 55C and 48C, both far cooler than stock, even with the voltage cranked up. Never ran it on air so can't comment about the performance in the 800D in that area.

    It sounds like I'm pushing the ATCS840 over the 800D but I'm just trying to be objective . The 800D has some pure vanity features that the ATCS840 doesn't which were of value to me. No point spending all that money on a nice dual loop cooling system if I can't stare at it (ie. Nice window) . Also the all black interior looks great.

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    Re: help choosing case??

    Quote Originally Posted by Bugbait View Post
    The cooling options on the ATCS840 are equal to or better than the 800D, arguably with a water solution as well. The H50 can be attached to the rear (at CPU level) of the ATCS840, just as it would on the 800D. The ATCS840 also has a bottom 120 intake, just like the 800D as well as both supporting a triple radiator (120.3) solution for the roof if desired. The ATCS840 offers a 230 intake on the front which the 800D doesn't have. Depending on your hardware configuration, this may make a notable difference in favour of the ATCS840.

    I'm running an overclocked 5970 in its own water loop, cooled by a 120.3, roof mounted radiator. The temperature isn't a problem as the radiator is arguably overkill. Been running FurMark on Xtreme Burning Mode for a past few hours and the GPU's read 55C and 48C, both far cooler than stock, even with the voltage cranked up. Never ran it on air so can't comment about the performance in the 800D in that area.

    It sounds like I'm pushing the ATCS840 over the 800D but I'm just trying to be objective . The 800D has some pure vanity features that the ATCS840 doesn't which were of value to me. No point spending all that money on a nice dual loop cooling system if I can't stare at it (ie. Nice window) . Also the all black interior looks great.

    That is impressive overclocking, just shows that a proper water cooling system cannot be matched. I read a review where the 5970 was reaching 100C when overclocked.

    I will need to have a good think about it because i will only be using the H50 and extra fans for cooling. The CPU should be ok if the H50 is set up with push-pull configuration. The GPU is a concern and i may need to use additional fans or the zalman bracket (above) if i go for the obsidian. Unless I decide to go for the coolermaster case which I could always mod for looks at a later stage.

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    Re: help choosing case??

    Quote Originally Posted by abs_rio View Post
    That is impressive overclocking, just shows that a proper water cooling system cannot be matched. I read a review where the 5970 was reaching 100C when overclocked.
    The main limitation on 5970 overclocking is the heat generated by the VRM's. On air cooling the stock solution doesn't cool one of the 3 main sets of VRMs, ie. They sit underneath the fan. A decent water block will cool these, along with the GPU's. I can get my card stable at 1GHz+ but the voltage causes the VRM's to spike over 115C (not desirable at all) on FurMark. At the current setting they peak around 85-90C. At stock clock speeds they barely break 45C on load. Although FurMark heats up a card hotter than even the most demanding current 3D games, I still use it as a stability test. Better to be safe in my books.

    If you don't plan to water cool your graphics cards then I'd definitely recommend the ATCS840 over the 800D. The 800D has quite a hot zone near the cards with standard (out of the box) cooling.

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    Re: help choosing case??

    You've missed the point of the obsidian entirely, it's a multiple cell design with bottom to top air flow.
    All the stock fans in the obsidian are 140mm not 120mm, the top section of the case is specifically designed to attach a 120x1, 120x2 or 120x3 rad stright to it without modification.
    The 140mm fan in the bottom of the main motherboard cell is the only area that air comes into the cell, it's not about volume air flow but seperated air flow.
    It's probably the single best case for out of the box, no moddification, water cooling design.

    To mount anything larger than a single 120x1 rad in the ATCS840 will require mod work, heck the large top 230mm fan would require the replacement of the top panel to make a good rad mount.

    I'm not saying the ATCS840 is bad, far from it, it's very good esp for an air cooled case, from what abs_rio said in his first post I'd say it's probably a better case for his requirements.
    However for the cost I'd probably look at an Antec P193 instead
    http://www.antec.com/Believe_it/product.php?id=MTgyNQ==
    at a far more sane £120 http://www.scan.co.uk/Products/Antec...k-Door-w-o-PSU

    PS the Zalman BR123 does not take up any pci slots, it's an arm that attaches to the slots (can be put on ontop of cards) that you can attach 2 fans too to blow down across the cards or cpu area.

    If you're worried about graphics card cooling, then attach it to the bottom slots so you can have a fan blowing stright across the cards.

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    Re: help choosing case??

    ah ok the bracket makes a lot more sense now, thank you. I am drifting away from the obsidian now to be honest. I just had a look at P193 which does look impressive and a lot cheaper. However, it is smaller than the obsidian or ATCS840 which maybe a problem with upgrading to these newer larger graphics card. I've also come across the Silverstone TJ-10 which has similar airflow design to the P193 but a lot larger, nice window panel and has a direct fan blowing over the GPUs

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    Re: help choosing case??

    While the ATCS is larger (mainly wider) the p193 is not small.
    One of the main changes to the p193 over the original p180/182/183 design was making it far longer so EATX motherboards and long graphics cards would fit, the other main change being more fans for added air flow.


    As you can see there's plenty of space in there for longer graphics cards
    http://www.3dgameman.com/reviews/1062/antec-p193-case
    Check out 5:06 - 5:27
    The p193 has room for 14" long graphics cards and has an optional support bracket to help support the weight of very long cards.

    I must admit I don't much like the look of the p193, I'd prefur it without the side panel fan.

    Again The ATCS is not a bad case, if you like the looks of it and you feel you can spend the money on it, then go for it.
    A case's looks can be a very personal thing and if you don't like the look of your case you'll never be quite happy with it.
    I quite like the looks of the ATCS but personally it's too much and too large, but that's me (I find my p180 is a little large for my likeing)

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    Re: help choosing case??

    Quote Originally Posted by Pob255 View Post
    You've missed the point of the obsidian entirely, it's a multiple cell design with bottom to top air flow.
    Was this directed at me? If so, I don't think I've missed the point at all . I own one...

    By default (as in straight out of the box) there is only 1 intake fan and that's not even situated at the closest intake point, ie. It sits about 25% up the height of the case instead of at the very base. There is no direct air intake to cool the PCI cards on the motherboard. There is not ventilation on the sides. For air or water based cooling the rear fan should be reversed to draw cold air in from the outside before being exhausted from the top. Even with the negative airflow design, for pure air cooling without modifications the 800D isn't the best (by far) for air cooling.

    Quote Originally Posted by Pob255 View Post
    All the stock fans in the obsidian are 140mm not 120mm, the top section of the case is specifically designed to attach a 120x1, 120x2 or 120x3 rad stright to it without modification. The 140mm fan in the bottom of the main motherboard cell is the only area that air comes into the cell, it's not about volume air flow but seperated air flow.
    The stock fans on the ATCS840 are 230mm though . The problem with the 800D cell design is that there is no direct intake flow to cool the PCI cards, which can get quite toasty. No problem for water cooling but quite lacking for air alone.

    Quote Originally Posted by Pob255 View Post
    It's probably the single best case for out of the box, no moddification, water cooling design.
    I agree, and it's one of the main reasons I bought one. However, for the reasons above I don't think it's suitable for the OP unless he values its other merits higher than air cooling performance.

    Quote Originally Posted by Pob255 View Post
    To mount anything larger than a single 120x1 rad in the ATCS840 will require mod work, heck the large top 230mm fan would require the replacement of the top panel to make a good rad mount. I'm not saying the ATCS840 is bad, far from it, it's very good esp for an air cooled case, from what abs_rio said in his first post I'd say it's probably a better case for his requirements.
    The H50 he plans to use is a 120mm radiator which should bolt straight onto the rear or top of either case. The ATCS840 comes with rails (although plastic) to mount a 120.3 directly to the top of the case, without modification. The base looks like it can hold a 120mm (or might be 140mm) as well, again without modification. This is the same as the 800D, although the base mounted radiator is bolted through the hex mesh (exactly what I did and hardly a big deal - no modifications required).

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    Re: help choosing case??

    Yes, it was aimed at you.

    The whole point of a negative pressure layout is you don't need any intake fans, the simple fact that out take fans are drawing air out of the case pulls air into it via ventilation holes, the only need most negative pressure cases have for intake fans is to direct and focus air flow going in over certain components, most have a front fan to blow air over hard drives to help keep them cool.
    By mounting the fan inside the case, the design helps pull air in while being inside the case, this reduces air drawn in through cracks and small joints while at the same time massively cutting down on fan noise.

    Yes the gpu area lacks direct air flow, which is why I sugested the Zalman fan bracket, just moveing the air about will help heat from getting trapped there.

    You really don't need a great number of fans in a case to get decent air flow and the stock 5870 with it's rear venting cooler will be dumping most of the heat out of the back of the case anyway.

    Now on your pc I'm not surprised a 5970 was getting a bit warm esp the VRM as that's a known issue of the 5970.
    The 5870 doesn't suffor from thoes vrm issues


    And while you can fit a rad to the top of the ATCS you have to remove the nice 230mm fan which sort of makes them pointless.

    I do agree with you the ATCS is a better air cooled case of the two, but if you don't like the look of a case you will constantly look at it and wish it was something else and when you're considering spending this much on a case it will be doubly so.
    I got my antec p180 2nd hand for £55 and if it wasn't for that I'd be constantly thinking why didn't I save up a bit more and get a silverstone fortress

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    • Bugbait's system
      • Motherboard:
      • Gigabyte Z370 Auros Gaming 7
      • CPU:
      • Intel i8 8700K (Watercooled)
      • Memory:
      • 2 x 16GB DDR4 Corsair LPX 4000Mhz
      • Storage:
      • Samsung 960 EVO 500GB, Samsung 850 EVO 500GB, SS 1TB, WD 2TB
      • Graphics card(s):
      • Gigabyte GTX 1080 Ti Waterforce WB Xtreme Edition
      • PSU:
      • Antec HCP-850 Platinum
      • Case:
      • Corsair Obsidian 900D (Dual D5 in series: 120.7 - EX360 + EX480) Noctua F & P12 Fans
      • Operating System:
      • Windows 10 Pro x64
      • Monitor(s):
      • LG 31MU97
      • Internet:
      • VM Cable (100Meg)

    Re: help choosing case??

    Quote Originally Posted by Pob255 View Post
    Yes, it was aimed at you.
    The boys at (** some site I can't name **) measured some high temps in the mid-case area: (** sorry, can't link the charts **).

    EDIT: Rereading their article I think their testing methodology was flawed in the comparison so I'm going to ignore their results. I'm still sceptical about the intake. Even with the "vacuum cleaner" effect, not having enough intake holes will still stifle air flow. Until I have more reliable results I'll concede that the 800D has adequate air cooling at this point . Corsair are adamant that the intake is not starved of air, but of course they'll say that!

    Quote Originally Posted by Pob255 View Post
    Yes the gpu area lacks direct air flow, which is why I sugested the Zalman fan bracket, just moveing the air about will help heat from getting trapped there.
    Agree, but moving hot air is still far from ideal. Blasting cold air would seem to work better?

    Quote Originally Posted by Pob255 View Post
    Now on your pc I'm not surprised a 5970 was getting a bit warm esp the VRM as that's a known issue of the 5970.
    The 5870 doesn't suffor from thoes vrm issues
    In all fairness the VRM's are getting warm due to the overclock. Although the VRM's on 5870's stay much cooler, they would get quite toasty at higher clock speeds as well. They can certainly make it further on their stock, air based cooling solutions though.

    Quote Originally Posted by Pob255 View Post
    And while you can fit a rad to the top of the ATCS you have to remove the nice 230mm fan which sort of makes them pointless.
    I don't agree with your reasoning here. You're still using 120's mounted with the radiator, same as with an 800D.

    Quote Originally Posted by Pob255 View Post
    I do agree with you the ATCS is a better air cooled case of the two, but if you don't like the look of a case you will constantly look at it and wish it was something else and when you're considering spending this much on a case it will be doubly so.
    I guess I'm playing devil's advocate. I really like my 800D yet I've been posting about all its shortcomings compared to the ATCS840! I certainly agree that the 800D is a better looking case but it's all very subjective. The finish on the 800D, from the all black internals and externals, through to the nice, large rubber grommets on the cable management certainly make it feel like a much more polished product. They make you pay for it though...
    Last edited by Bugbait; 29-12-2009 at 10:38 AM.

  16. #16
    Member
    Join Date
    Dec 2009
    Posts
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    6 times in 6 posts
    • abs_rio's system
      • Motherboard:
      • Asus X99-A
      • CPU:
      • Intel Core i7 5820K @ 4.4ghz + Corsair H80
      • Memory:
      • 16GB Corsair DDR4 Vengeance LPX
      • Storage:
      • 250GB Samsung 850 EVO SSD + Western Digital 3TB HDD
      • Graphics card(s):
      • Gigabyte NVIDIA GeForce GTX 1070 XTREME GAMING
      • PSU:
      • EVGA SuperNOVA Gold 2 850W
      • Case:
      • Silverstone Fortress FT02-W
      • Operating System:
      • Windows 10 Pro 64 Bit
      • Monitor(s):
      • Dell U2711

    Re: help choosing case??

    thanks for all the advice, apparently the P193 does have difficulty with CPU coolers, especially the H50, due to that side fan http://forums.bit-tech.net/showthread.php?t=180433

    im narrowing it down to the ACTS 840, Silverstone TJ-10 or maybe the Lian-Li PC-P80B (expensive) due to the better airflow.

    I really like TJ-10 due to its side panel window, also i saw that it comes in an ESA version. The ESA is not of much use to me but I like the fact that they include extra fans in there. Or would it be better to install my own fans?

    http://www.scan.co.uk/Product.aspx?WebProductId=653466
    http://www.scan.co.uk/Product.aspx?WebProductId=796741

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