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#1
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Newbie asking questions!
I am in the process of building my first two machines at the same time. I am
planning to build afresh but reuse an two old cases and PSU's. I have found that my ATX AOpen AMD motherboards I purcahsed (to go with the AMD 2500 and 2600 processors I got) dont physically fit the cases, and one of the PSU's doesnt fit into the motherbaord connector either (wrong connector at the end) Am I doing something wrong as the cases I am reusing are not that old (around late 1999) didnt think building of motherbaords would change so much in that time. And do I just need an adapter for the PSU or is it a bin job. By the way can someone clear this up.....why are some PSU's a different wattage to others. I want to run the usual plus two hard drives and a DVD ROM I wouldnt need an uprated PSU for this surely. Also with themral compuind do you only get enough appliacation in the syringes for one CPU/Heatsink or will I be able to squeeze two out of it. Many Thanks for everyones help |
#2
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"Simon" wrote in message
... I am in the process of building my first two machines at the same time. I am planning to build afresh but reuse an two old cases and PSU's. Good plan. I have found that my ATX AOpen AMD motherboards I purcahsed (to go with the AMD 2500 and 2600 processors I got) dont physically fit the cases, and one of the PSU's doesnt fit into the motherbaord connector either (wrong connector at the end) Am I doing something wrong as the cases I am reusing are not that old (around late 1999) didnt think building of motherbaords would change so much in that time. And do I just need an adapter for the PSU or is it a bin job. Your old PSU is probably AT instead of the new ATX standard. You can buy a special wire that will adapt it (e.g. http://www.trianglecables.com/attoatxpowco.html) but you'll probably want/need a bigger PSU for the AMD chips. As for the cases, they may be propriatary but chances are they are ATX and the motherboard should fit. Does everything match up at the back of the case? By the way can someone clear this up.....why are some PSU's a different wattage to others. I want to run the usual plus two hard drives and a DVD ROM I wouldnt need an uprated PSU for this surely. More stuff = more power. AMD chips need more power than the old Celerons and things like hard drives eat up the juice. I'd recommend making sure you have 300+W or else you could get freezing under games when everything is sucking power at once. Also with themral compuind do you only get enough appliacation in the syringes for one CPU/Heatsink or will I be able to squeeze two out of it. You only need a VERY small amount of compound on the CPU die. Just make sure it's very lightly coated (not white). I've never finished off a tube of compound after applying it to about 5 CPUs. Many Thanks for everyones help No prob :-) --Mitchua |
#4
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"Simon" wrote in message ... I am in the process of building my first two machines at the same time. I am planning to build afresh but reuse an two old cases and PSU's. I have found that my ATX AOpen AMD motherboards I purcahsed (to go with the AMD 2500 and 2600 processors I got) dont physically fit the cases, and one of the PSU's doesnt fit into the motherbaord connector either (wrong connector at the end) Am I doing something wrong as the cases I am reusing are not that old (around late 1999) didnt think building of motherbaords would change so much in that time. And do I just need an adapter for the PSU or is it a bin job. By the way can someone clear this up.....why are some PSU's a different wattage to others. I want to run the usual plus two hard drives and a DVD ROM I wouldnt need an uprated PSU for this surely. Newer CPUs and video cards definitely do have higher power requirements. When you combine that with the fact that many machines use pretty underpowered power supplies, not really meant for upgrading but for doing the minimum required in the base configuration as sold, it often is true you'll need a bigger power supply. Search the web for power supplies and how to determine power requirements. I'd say you probably, if not surely, need a new power supply. (the connector alone tells you it won't work.) Also with themral compuind do you only get enough appliacation in the syringes for one CPU/Heatsink or will I be able to squeeze two out of it. You can "squeeze" 2 out of it, literally. You don't need much at all, if it's applied evenly. |
#5
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What sort of wattage should I be looking for. And I'm sure one of the cases (a
'99 Tiny case) is an ATX type because the PSU is ATX. Why then doesnt it fit a full size ATX motherboard in when the Tiny case itself seems normal sized middi tower??!!! I Must be getting old, not understanding why this new technology doesnt fit! |
#6
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On 11 Dec 2003 01:10:23 GMT, onojunk (Sidmon) wrote:
What sort of wattage should I be looking for. And I'm sure one of the cases (a See my previous post in this thread: '99 Tiny case) is an ATX type because the PSU is ATX. Why then doesnt it fit a full size ATX motherboard in when the Tiny case itself seems normal sized middi tower??!!! What do you mean when you say, "it doesn't fit"? Is the board too large to fit inside the case, do the mounting holes not line up, or do the I/O connectors on the motherboard not line up with the cutouts on the back of the case? If the latter, do you have the correct I/O shield installed on the back of the case? Your motherboard may have come with an I/O shield. If so, replace the I/O shield on the case. The I/O shield just pops out with moderate force. Are you *sure* your case has a full-size ATX form factor? A quick Google on "tiny atx" indicates that your chassis may in fact be micro-ATX: http://www.directron.com/a102b.html http://www.thermalgear.com/encsw2frusat.html If your case is similar to any of these, then a full-size ATX board will not fit. 2600 processors I got) dont physically fit the cases, and one of the PSU's doesnt fit into the motherbaord connector either (wrong connector at the end) As for the motherboard power connector, this is a 20-pin socket arranged in two rows of ten each. The power supply power connector is keyed to fit only one way, and a latch will engage when the connector is fully inserted. If you're still having trouble, please tell us the make and model of your motherboards AND cases, and tell us which motherboard you're trying to install in which chassis. -- Robert B. Clark (email ROT13'ed) Visit ClarkWehyr Enterprises On-Line at http://www.3clarks.com/ClarkWehyr/ |
#7
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"Sidmon" wrote in message ... What sort of wattage should I be looking for. And I'm sure one of the cases (a '99 Tiny case) is an ATX type because the PSU is ATX. Why then doesnt it fit a full size ATX motherboard in when the Tiny case itself seems normal sized middi tower??!!! I Must be getting old, not understanding why this new technology doesnt fit! Do some web searches - you'll have to read up on the standards. You can also search for a calculator to figure your wattage needs. But if you don't want to do that, just buy a quality 350-400 watt power supply and you'll be OK. You might be able to save $10-20, but then you'll never be sure if you bought a good brand or enough power until it's too late. |
#8
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The old AT motherboards generally had mouse/keyboard connectors on the back edge
of the motherboard. The vast majority of cases they went into had one gigantic steel plate on the back with slots for add on boards and holes for the M/KB connectors. The AT power supplies had the old 2 connectors of inline pins that went to the MB. The newer ATX motherboards have all kinds of ports mounted on the back edge of the board. LPT, Com, USB, NIC.... in technical terms, a ****load. They don't fit in strictly AT cases at all. However, generally buying a new motherboard you get an I/O shield that fits around the ports/connectors on the back of the MB. These are long rectangles designed to fit in a knockout in the back of the case. If you don't have a knockout in the back of the case, and you don't want to do all kinds of neat wiring tricks, you have an AT case. As for your case.... There are different flavors of ATX motherboards. Some are pretty small on purpose for those who want to build a small system or put a motherboard in a toaster or a cereal boxG. The same goes for the cases they go into. Your full size(sic) motherboard ain't a gonna go in that little micro case even if it is a flavor of ATX. During the transition from AT to ATX motherboard/PS, there were some boards that had power connectors for Both types of PS connection on them. Having an ATX power supply in the case is no guarantee that it's an ATX case. As for PS wattage, get at least a good quality 300watt PS. AMD's site has, or used to have specs and requirements for how much amperage you need from the PS on each bus; 12volt, 5volt, and 3.3volt. This does not necessarily mean it is enough to run a handful of hard drives and high current video card. When I went from an AMD 450 with 8 hard drives, floppy, CD roms to a 1gig Athlon, my old 220watt PS wouldn't fill the bill. Even removing all but a single drive wouldn't Post the system. The PS simply wouldn't give the amperage that the Athlon needed. That was a damn good PC Power & Cooling PS with about 9000 Molex connectors on it. I sorely missed that old PS.... Perhaps you can see that, all things being equal, my system with 1 15000rpm drive and 7 10000rpm drives and a higher end video card is going to need more wattage. I understand the CDRWs pull some good wattage too. Not sure just what effect your DVD will have on the system requirements. For thermal compound, you're not icing a cake! At a minimum, you should be able to do several CPUs. It's simply not feasible to put just enough compound for 1 CPU in a syringe. Spread it thin! If you think of an actual syringe like you get your flu shot from, there would be enough thermal compound in the needle itself after the syringe tube was empty to do several CPUs. Spread it nice and flat (and thin!) with a single edged razorblade. On 10 Dec 2003 12:58:11 GMT, mmyy (Simon) wrote: I am in the process of building my first two machines at the same time. I am planning to build afresh but reuse an two old cases and PSU's. I have found that my ATX AOpen AMD motherboards I purcahsed (to go with the AMD 2500 and 2600 processors I got) dont physically fit the cases, and one of the PSU's doesnt fit into the motherbaord connector either (wrong connector at the end) Am I doing something wrong as the cases I am reusing are not that old (around late 1999) didnt think building of motherbaords would change so much in that time. And do I just need an adapter for the PSU or is it a bin job. By the way can someone clear this up.....why are some PSU's a different wattage to others. I want to run the usual plus two hard drives and a DVD ROM I wouldnt need an uprated PSU for this surely. Also with themral compuind do you only get enough appliacation in the syringes for one CPU/Heatsink or will I be able to squeeze two out of it. Many Thanks for everyones help ~~~~~~ Bait for spammers: root@localhost postmaster@localhost admin@localhost abuse@localhost ] ~~~~~~ Remove "spamless" to email me. |
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