Intel's Long Awaited BTX Form Factor
by Purav Sanghani on November 15, 2004 5:31 AM EST- Posted in
- Cases/Cooling/PSUs
Thermals Micro ATX (uATX)
Our first assumption of miniATX cases was that due to the smaller size, air could be circulated in and out quicker than larger cases with smaller and less fans. We tested our D915GUX ATX motherboard and Pentium 550 CPU in the TT-501 microATX chassis from Opus Technologies. Opus Technologies does not have as many products on its list as other big name manufacturers like Thermaltake or SilverStone, but it does have a few tower cases and power supplies with unique features. We had a chance to look at their titanium plated MT-200 mid tower chassis in April which did not disappoint us with its performance.The TT-501 is also a unique case with various features that take away the blandness we usually find in value prices chassis. It has plenty of room for expansion for its size. With two 3-1/2" drive bays, and two 5-1/4" drive bays as well as an area at the bottom to mount a floppy drive or flash memory card reader it is ready to compete even with some mid tower cases. Things may seem a bit cramped when the case is packed with hardware, though. The TT-501 is about 13" in width by 15" in depth and about 6" in height when laid on its side. Since this is meant to be a mini tower chassis we will stand it upright for our benchmarks.
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The temperatures of the ambient air throughout the TT-501 are generally higher than we had expected them to be. We can see from the overlay that the warmest region of the system is around the CPU, Northbridge, and PCIe VGA card. What we did not expect was how hot these temperatures would be in those areas. Let's see if the temperatures of the components themselves can tell us something more.
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It is obvious the TT-501 is not the best in cooling performance. Though it has two 80mm fans mounted at the back of the case it is not enough to circulate air in and out efficiently. An extra fan on the left side panel of the case may have helped exhaust some of the warm air from various areas.
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ThelvynD - Monday, November 15, 2004 - link
We've been getting in new HP 7100s here at my work center and they've been in the micro-BTX format. I don't any major problems with it so far. Pic below.http://www.picsplace.to/044712/HP-BTX.JPG
Nonsense - Monday, November 15, 2004 - link
#36 - Thanks Purav.Can you tell me - is the PS blowing in or out, and is the CPU fan blowing in or out? I'm still trying to figure where all the air is comming from.
PuravSanghani - Monday, November 15, 2004 - link
#34: If you look at the picture of the backside of the B300 on page 8 there are groups of holes above the VGA expansion slot as well as to the right between the expansion slot and the power supply. There are also holes lining the bottom of the case if you look closely. We were surprised ourselves to find how well passively cooling all of the components in a system would actually work. And from the pictures you can also see there aren't too many holes for a large amount of air to come in through!PuravSanghani - Monday, November 15, 2004 - link
#25: Actually, the front panel connectors *are* standardized and combined into one single plug. We mentioned this on page 8 of the article, "First Look: AOpen B300 BTX case cont'd", in the paragraph where we talk about the auxiliary module.Nonsense - Monday, November 15, 2004 - link
#28 - I don't understand the air flow.If the CPU fan is blowing out the front of the case, then the PS _must_ be blowing in.
Blowing hot air into a case does not sound good. Is that how it works?
If the PS is also blowing out, then you have a vacuum. I do not see any heat comming into the case from the PS, so it must be blowing out...?!
Where is the air comming from that is cooling the graphics card? It looks like mostly dead air in that corner - there are only tiny grills on the back.
Sunbird - Monday, November 15, 2004 - link
From last paragraph of article:"The ATX case used more space and ran louder."
Space is not evil!, its a good thing for when your drop a small screw, or have hands that fit your 6'6" frame. And loudness can be adressed in other just as succesfull ways.
"Don't forget that additional non-redundant fans increase the failure rate of a computer as well - more moving parts."
And what if the single fan on the BTX sollution fails? That is really non-reduntant if you ask me, anyone agree?
Sunbird - Monday, November 15, 2004 - link
#20, I agree, I have a Packard Bell P1 133MHz flat desktop case PC in my workshop and that is almost exactly the same design as this, except the stuff like the optical drive, hard drives and power supply was swapped from the right to the left side of the case, othewise its exactly the same. Glad to see some oldschool designs again, lol#27's idea is brilliant, they quickly implemented something like that with the cases and their front USB options, those LED and power button connector have been around much longer. What's taking them so long?
epiv - Monday, November 15, 2004 - link
skunkbuster - Monday, November 15, 2004 - link
flash in the pants?Zebo - Monday, November 15, 2004 - link
This is going nowhere quick. It's obvious Intel will no longer need it when they make the Dothan desktop transition plus AMD all case and PS manufactures hate the idea. Just wahtever you do don't go buying an $300 Lian Li and $120 PSU since BTX is a flash in the pants.