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Thread: Anyone have correct dimensions of X99 WS and X99 OC Formula?




  1. #11
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    Default Re: Anyone have correct dimensions of X99 WS and X99 OC Formula?

    Ack. I *did* post a thank-you, mere hours after you provided the measurements:

    "Thanks for the measurements. As expected, it's basically an SSI-CEB board with standard ATX mounting holes. The 'overhang' compared to ATX is less than an inch, so there's a good chance it will fit into the cases I have in mind. Which is where I was trying to get.

    I really appreciate your taking the time to get those measurements."

    [yes, I spell-check my posts in another app, which was still open]


    I have no idea why it didn't appear, though I confess I didn't actually go back to the board to verify that it posted. I apologize for the oversight.

  2. #12
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    Default Re: Anyone have correct dimensions of X99 WS and X99 OC Formula?

    Ok, I believe you, I've done that myself, meaning write a post and then forget to submit it as I close the browser. Return to the forum later and wonder where my post is...

    Sorry to be crabby, I thought your lack of response was just another of the many threads I post in that just end at that point, with no reply of any kind. Your thread had the dubious honor of me whining about it in print. I appreciate your reply, thank you.

    Anyway, I happened to notice those measurements in the Z87 OC Formula manual, and then checked the two you were interested in, the X99 OC and X99 WS, but found nothing in the Specs section.

    But now I discovered in the manual for my ASRock Z77 Extreme 4 board (unrelated in size to the boards in question), a listing of the size where I did not expect it, in the Package Contents section:

    ASRock Z77 Extreme4 Motherboard
    (ATX Form Factor: 12.0-in x 8.6-in, 30.5 cm x 21.8 cm)


    Those dimensions are not exactly what the ATX standard specifies AFAIK.

    Who knows why the size specs were included in some cases, and in others not.

    I looked again at the X99 OC Formula manual, and all it has is "EATX" for the size, at least that I could find. The picture in the manual shows the board in its usual orientation, while the picture on the board's info page is turned 90 degrees, making it look more square IMO:

    Anyone have correct dimensions of X99 WS and X99 OC Formula?-x99-ocf-png

    Just noticed the lack of mounting screw holes in that picture, which makes it pretty useless.

    The X99 WS manual has this bit of helpfulness:

    This is an EATX form factor motherboard. Before you install the motherboard, study the coniguration of your chassis to ensure that the motherboard its into it.

    I just felt like posting this, partially due to guilt... you need not thank me for it... just sayin'...

  3. #13
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    Default Re: Anyone have correct dimensions of X99 WS and X99 OC Formula?

    Yeah, that 218mm dimension is definitely suspect; standard ATX is 244, so that's an inch short of spec. Which would mean that the 3 mounting holes on the front side of the board (opposite the I/O area) would be missing, and so 2 inches of the board--2 inches with a *lot* of connectors in it, including the DRAM sockets--would be hanging off in space unsupported. Uh, no; that's gotta be a typo: it's really 9.6, and the 218 came from someone converting the 8.6-that-should-have-been-9.6 into metric.

    The bogus "E-ATX" is all over the ASRock site and docs. Yes, the boards are longer than ATX, but it's obvious from the pictures that none of them are even close to the 330mm E-ATX number, so it would be really helpful if the ASRock doc people would list the actual dimensions. The text you quoted seems more likely to scare people off ("OMG, E-ATX would never fit in my case!"), when the reality appears to be that they're like 0.8 inches longer than stock ATX. I can live with that, especially since the only high-insertion-force item in the overhang area is the 24-pin power connector.

    So--thanks to your providing the real numbers that ASRock doesn't--I have a shiny new X99 OC Formula arriving day after tomorrow.

  4. #14
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    Default Re: Anyone have correct dimensions of X99 WS and X99 OC Formula?

    Quote Originally Posted by ChaosTheorist View Post
    Yeah, that 218mm dimension is definitely suspect; standard ATX is 244, so that's an inch short of spec. Which would mean that the 3 mounting holes on the front side of the board (opposite the I/O area) would be missing, and so 2 inches of the board--2 inches with a *lot* of connectors in it, including the DRAM sockets--would be hanging off in space unsupported. Uh, no; that's gotta be a typo: it's really 9.6, and the 218 came from someone converting the 8.6-that-should-have-been-9.6 into metric.

    The bogus "E-ATX" is all over the ASRock site and docs. Yes, the boards are longer than ATX, but it's obvious from the pictures that none of them are even close to the 330mm E-ATX number, so it would be really helpful if the ASRock doc people would list the actual dimensions. The text you quoted seems more likely to scare people off ("OMG, E-ATX would never fit in my case!"), when the reality appears to be that they're like 0.8 inches longer than stock ATX. I can live with that, especially since the only high-insertion-force item in the overhang area is the 24-pin power connector.

    So--thanks to your providing the real numbers that ASRock doesn't--I have a shiny new X99 OC Formula arriving day after tomorrow.
    Good point about potential customers seeing EATX and moving on without checking the actual size, not that you can check the true size.

    Documentation misses like this reminds me of my days working in software development for a big corporation. Most teams had a "technical writer" that would produce the documentation, but their level of technical savvy could vary widely. You may be surprised to learn that a manual author might be off-site from the design location, and not have constant, immediate access to the the engineers or even the same documents they use. Which is why we may see exact terms used as generalizations.

    Just FYI, I have an ASR Z77 Extreme 4 board (two really), and its width is really 8.6". I happen to have it out of a PC case, and I checked the width measurement. So we yet again have a board that is kinda, sorta, a standard ATX size. OTOH, this petite ATX size is not unique, I have an older Gigabyte board that is almost the same size.

    You are right that about two inches of board at the edge where the 24 pin ATX power cable and SATA ports are located are do not have screw holes, and is normally unsupported. That edge is at the bottom of the picture below.

    But there is one hole in the board you can see at the lower right corner, that does not match any standard standoff pattern. I use a plastic standoff that snaps into the hole for some support. There's another hole like that hidden in the picture, and blocked by a SATA port in the lower left corner. Not very good, but I have yet to see a thread about someone breaking their board due to lack of support on that edge. Either ASR is lucky, or these boards are tougher than some people say they are.

    Enjoy your X99 OC Formula, IMO the OC Formula models are the best built ASR boards that I have seen.

    Anyone have correct dimensions of X99 WS and X99 OC Formula?-asr-z77-ex4-jpg

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    Default Re: Anyone have correct dimensions of X99 WS and X99 OC Formula?

    Interesting; I wonder what they got in return for chopping off that inch of board? I see that ASRock and AOpen have made a number of boards in that size, and SuperMicro had several back in the PIII/P4 days, so there must have been some advantage.

    I've been "working in software development for [various] big corporation[s]" for the last 20+ years, so I know exactly what you mean about the docs. It doesn't happen a lot, but I've definitely had experiences of "That isn't how that works! Who the **** wrote that?" when I read the 'documentation' for my code. Sometimes I was able to get it fixed, sometimes not.

    I'm definitely looking forward to this build. I've built about half of my own machines over the last 30 years, but apparently it's been a while; I went to take apart my last machine a couple of days ago to see if there was anything worth salvaging, and it has an *AGP* video card! So I guess that's a 'no'....

  6. #16
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    Default Re: Anyone have correct dimensions of X99 WS and X99 OC Formula?

    Why did they remove one inch from the motherboard? Cost savings in material along with lower costs with smaller motherboard boxes plus lower shipping costs. The savings add up quickly when they are producing and shipping thousands of motherboards.

    Check out Computer form factor - Wikipedia

    A web search using: motherboard sizes form factor will provide additional information and quite a few pictures and images.

    Here is a direct link for diagrams and images.

    File:Formfactors.gif - Wikipedia



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  7. #17
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    Default Re: Anyone have correct dimensions of X99 WS and X99 OC Formula?

    Thanks; we know about the standard sizes, and 305x218mm/12x8.6in doesn't match any of them.

    But I think your cost-savings idea is exactly on target. Since standard board blanks are 24x18 inches, each blank can only produce 2 ATX boards. By dropping the length to 9 inches or less, you now get 4 boards per blank. Or you could get 2 standard ATX boards plus 2 305x213mm boards; wonder if anyone uses that size?

    In that spirit, since the 8.6in/218mm length doesn't seem to have a name, I christen it "Cheapo-ATX"

  8. #18
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    Default Re: Anyone have correct dimensions of X99 WS and X99 OC Formula?

    Quote Originally Posted by ChaosTheorist View Post
    Thanks; we know about the standard sizes, and 305x218mm/12x8.6in doesn't match any of them.

    But I think your cost-savings idea is exactly on target. Since standard board blanks are 24x18 inches, each blank can only produce 2 ATX boards. By dropping the length to 9 inches or less, you now get 4 boards per blank. Or you could get 2 standard ATX boards plus 2 305x213mm boards; wonder if anyone uses that size?

    In that spirit, since the 8.6in/218mm length doesn't seem to have a name, I christen it "Cheapo-ATX"
    Oh sure, name one of my boards Cheapo-ATX, Mr. X99 8 core CPU, must be nice...

    There is zero doubt in my mind that the Chea... er, psuedo ATX sized boards are that size due to the ability to make four from a blank PC board.

    OTOH, if everything fits fine on the board, and nothing is really compromised by using the smaller size, then it's Ok IMO. The lack of support on the edge of the board is another issue, not necessarily related to the size of the board.

    Actually, I've read that the biggest expense on an Intel based board is the chipset, like a Z97 or X99. I imagine that blank printed circuit boards for PC mother boards are not an exotic item and shouldn't be very expensive. That of course varies with the quality of the board, eight layers and two ounce copper being more pricey.

    I've dreamed about what a PC mother board would be like if it were made by a high end audio company like McIntosh, Krell, Mark Levinson, etc.

  9. #19
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    Default Re: Anyone have correct dimensions of X99 WS and X99 OC Formula?

    Sorry, didn't mean to slag on your cute little board...how about "EconoATX". Being economical is a virtue, right?

    The board is definitely not the most expensive piece of the puzzle but, even if getting four products instead of two from each one only saves you a dollar or two per board , if you're doing a million or two of them, it adds up.

    Especially if you're using ML boards:

    "Triple-thickness copper traces for near-zero impedance, separated by fiberglass layers made from woven glass matting hand-spun and hand-woven by virgins working in a Level 5 clean room, then epoxied via a vacuum-deposition process and polished to a surface irregularity of 300nm or less as verified by blue-light conofocal microscopy. In keeping with our long tradition of being environment-friendly, acid etching is forbidden; circuit traces are cut from 5-micron copper leaf on a precision NC laser cutter, then transferred to the board with a proprietary permanent adhesive derived from African sable wood, ambergris from ethically-culled Sperm Whales, and other ingredients known to only 3 members of the Levinson team. Continuing with our commitment to protect the environment, exposed copper connection points are tinned with SN100CL, a 100%-lead-free alloy.

    Yours for the astonishingly low price of $500/square foot."

  10. #20
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    Default Re: Anyone have correct dimensions of X99 WS and X99 OC Formula?

    Quote Originally Posted by ChaosTheorist View Post
    Sorry, didn't mean to slag on your cute little board...how about "EconoATX". Being economical is a virtue, right?

    The board is definitely not the most expensive piece of the puzzle but, even if getting four products instead of two from each one only saves you a dollar or two per board , if you're doing a million or two of them, it adds up.

    Especially if you're using ML boards:

    "Triple-thickness copper traces for near-zero impedance, separated by fiberglass layers made from woven glass matting hand-spun and hand-woven by virgins working in a Level 5 clean room, then epoxied via a vacuum-deposition process and polished to a surface irregularity of 300nm or less as verified by blue-light conofocal microscopy. In keeping with our long tradition of being environment-friendly, acid etching is forbidden; circuit traces are cut from 5-micron copper leaf on a precision NC laser cutter, then transferred to the board with a proprietary permanent adhesive derived from African sable wood, ambergris from ethically-culled Sperm Whales, and other ingredients known to only 3 members of the Levinson team. Continuing with our commitment to protect the environment, exposed copper connection points are tinned with SN100CL, a 100%-lead-free alloy.

    Yours for the astonishingly low price of $500/square foot."
    Now now, I did not take offense, nor did I comment on you beta testing... I mean as an early adopter of the X99 platform, you get to discover the many hidden features. Being a developer I imagine you know what I mean.

    For others reading the post above, the description of the circuit board build up used by Mark Levinson is a factually accurate description of ultra high end audio extremes. The only things left out was cryogenic treating of the entire board, and the use of PC-OCC copper.

    ... ethically-culled Sperm Whales

    Over clocking processors is just scratching the surface, I want my CPU's transistors biased into Class A.

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