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#1
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Power Supply mounting confusion
OK, I've gotten the bug to build my own computer. Having never done this before I have been lurking on this group for a while and I've been searching the internet for information. I have decided to build a computer based on the Athlon XP processor. I have found that AMD, in their "Builders Guide for Desktop/Tower Systems" case guidelines, recommends the use of a "bottom air intake" power supply. http://www.amd.com/us-en/assets/cont..._tech_docs/260 03.pdf The logic of this seems obvious yet I have been unable to find a single power supply with specifications stating that it brings in air from a bottom intake or fan. Many power supplies have a fan on the top. I'm unsure why since most of the cases I've seen do not have a hole on the top to match. Then I thought I would just turn the power supply upside-down, but no, the mounting screw pattern is not symmetrical and the few cases that show the hole pattern orient the powersupply with the fan up. I did find a site that shows how to butcher your "incorrectly" built case to fit an upside-down power supply. http://www.directron.com/powermod.html I would have no problem with altering a case or for that matter the power supply to mount upside-down but seeing as they went to the trouble to make the screw pattern different top to bottom I figured there must be a reason. Am I missing something? Do some cases have the mounting holes oriented so that the power supply mounts upside down? Could anyone here point me to a good 400+ watt power supply with a bottom intake vent or fan? Thanks Charlie |
#2
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no PSU has a fan on top, you're looking at them upside down.
"Charlie" wrote in message ... OK, I've gotten the bug to build my own computer. Having never done this before I have been lurking on this group for a while and I've been searching the internet for information. I have decided to build a computer based on the Athlon XP processor. I have found that AMD, in their "Builders Guide for Desktop/Tower Systems" case guidelines, recommends the use of a "bottom air intake" power supply. http://www.amd.com/us-en/assets/cont..._tech_docs/260 03.pdf The logic of this seems obvious yet I have been unable to find a single power supply with specifications stating that it brings in air from a bottom intake or fan. Many power supplies have a fan on the top. I'm unsure why since most of the cases I've seen do not have a hole on the top to match. Then I thought I would just turn the power supply upside-down, but no, the mounting screw pattern is not symmetrical and the few cases that show the hole pattern orient the powersupply with the fan up. I did find a site that shows how to butcher your "incorrectly" built case to fit an upside-down power supply. http://www.directron.com/powermod.html I would have no problem with altering a case or for that matter the power supply to mount upside-down but seeing as they went to the trouble to make the screw pattern different top to bottom I figured there must be a reason. Am I missing something? Do some cases have the mounting holes oriented so that the power supply mounts upside down? Could anyone here point me to a good 400+ watt power supply with a bottom intake vent or fan? Thanks Charlie |
#3
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Charlie wrote:
Could anyone here point me to a good 400+ watt power supply with a bottom intake vent or fan? Practically all of 'em. |
#4
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2 upside-downs make it right ;-) The fan is meant to go on the bottom, not
the top of the unit. "Charlie" wrote in message ... OK, I've gotten the bug to build my own computer. Having never done this before I have been lurking on this group for a while and I've been searching the internet for information. I have decided to build a computer based on the Athlon XP processor. I have found that AMD, in their "Builders Guide for Desktop/Tower Systems" case guidelines, recommends the use of a "bottom air intake" power supply. http://www.amd.com/us-en/assets/cont..._tech_docs/260 03.pdf The logic of this seems obvious yet I have been unable to find a single power supply with specifications stating that it brings in air from a bottom intake or fan. Many power supplies have a fan on the top. I'm unsure why since most of the cases I've seen do not have a hole on the top to match. Then I thought I would just turn the power supply upside-down, but no, the mounting screw pattern is not symmetrical and the few cases that show the hole pattern orient the powersupply with the fan up. I did find a site that shows how to butcher your "incorrectly" built case to fit an upside-down power supply. http://www.directron.com/powermod.html I would have no problem with altering a case or for that matter the power supply to mount upside-down but seeing as they went to the trouble to make the screw pattern different top to bottom I figured there must be a reason. Am I missing something? Do some cases have the mounting holes oriented so that the power supply mounts upside down? Could anyone here point me to a good 400+ watt power supply with a bottom intake vent or fan? Thanks Charlie |
#5
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I've been using an Allied 400W PSU that I got at Newegg.com for about
US $36. It may not be a "true" 400W unit, but it has been stable for the several months that I've owned it. It is a dual-fan (pulls up from the bottom fan and expels through the back one) model with plenty of power connectors. I believe this model is "AMD-approved" for what it's worth. "Charlie" wrote in message ... OK, I've gotten the bug to build my own computer. Having never done this before I have been lurking on this group for a while and I've been searching the internet for information. I have decided to build a computer based on the Athlon XP processor. I have found that AMD, in their "Builders Guide for Desktop/Tower Systems" case guidelines, recommends the use of a "bottom air intake" power supply. http://www.amd.com/us-en/assets/cont..._tech_docs/260 03.pdf The logic of this seems obvious yet I have been unable to find a single power supply with specifications stating that it brings in air from a bottom intake or fan. Many power supplies have a fan on the top. I'm unsure why since most of the cases I've seen do not have a hole on the top to match. Then I thought I would just turn the power supply upside-down, but no, the mounting screw pattern is not symmetrical and the few cases that show the hole pattern orient the powersupply with the fan up. I did find a site that shows how to butcher your "incorrectly" built case to fit an upside-down power supply. http://www.directron.com/powermod.html I would have no problem with altering a case or for that matter the power supply to mount upside-down but seeing as they went to the trouble to make the screw pattern different top to bottom I figured there must be a reason. Am I missing something? Do some cases have the mounting holes oriented so that the power supply mounts upside down? Could anyone here point me to a good 400+ watt power supply with a bottom intake vent or fan? Thanks Charlie |
#6
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Antec 430 Watt Tru-Power power supply. Excellent choice, built ruggedly,
and conservatively rated. -- DaveW "Charlie" wrote in message ... OK, I've gotten the bug to build my own computer. Having never done this before I have been lurking on this group for a while and I've been searching the internet for information. I have decided to build a computer based on the Athlon XP processor. I have found that AMD, in their "Builders Guide for Desktop/Tower Systems" case guidelines, recommends the use of a "bottom air intake" power supply. http://www.amd.com/us-en/assets/cont..._tech_docs/260 03.pdf The logic of this seems obvious yet I have been unable to find a single power supply with specifications stating that it brings in air from a bottom intake or fan. Many power supplies have a fan on the top. I'm unsure why since most of the cases I've seen do not have a hole on the top to match. Then I thought I would just turn the power supply upside-down, but no, the mounting screw pattern is not symmetrical and the few cases that show the hole pattern orient the powersupply with the fan up. I did find a site that shows how to butcher your "incorrectly" built case to fit an upside-down power supply. http://www.directron.com/powermod.html I would have no problem with altering a case or for that matter the power supply to mount upside-down but seeing as they went to the trouble to make the screw pattern different top to bottom I figured there must be a reason. Am I missing something? Do some cases have the mounting holes oriented so that the power supply mounts upside down? Could anyone here point me to a good 400+ watt power supply with a bottom intake vent or fan? Thanks Charlie |
#7
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On Wed, 19 May 2004 13:20:58 -0400, "Charlie"
wrote: Could anyone here point me to a good 400+ watt power supply with a bottom intake vent or fan? http://store.4linkcomm.com/wow640blatxp1.html Thanks Charlie |
#8
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"wooducoodu" wrote in message . com... no PSU has a fan on top, you're looking at them upside down. Ah, the old display power supplies upside-down trick. Well they got me. Thanks, Charlie |
#9
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"Matt" wrote in message ... Charlie wrote: Could anyone here point me to a good 400+ watt power supply with a bottom intake vent or fan? Practically all of 'em. Well, the power supplies made by PC Power & Cooling are often recommended. So the first one I looked at (410 ATX) can be seen at: http://www.pcpowercooling.com/produc...uiet/silencers /index.htm It appears to have no vent or fan on the bottom assuming that it is displayed upside-down. I then decided on an Antec TruePower True430. http://www.antec-inc.com/us/pro_powerSupply.html This does show a fan on the bottom, I just wasn't aware that everyone displays their power supplies upside-down. Thanks, Charlie |
#10
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"Alex" wrote in message ... 2 upside-downs make it right ;-) Honest, I'm not standing on my head and let me check... No my monitor isn't upside-down. The fan is meant to go on the bottom, not the top of the unit. Thanks, Charlie |
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