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Hi Ben !
Have tried posting the following message twice. It won't stick. Changed headers. I have seen this before with this newsgroup. Seems that sometimes I can't post to this ng if I have links in it. Weird. "Ben Myers" wrote in message Bob, Any substantial cash reward for 1100MHz Tualatin CPUs? How about 1400MHz Tualatins? I have two of the former and one of the latter still in captivity last time I looked. Maybe some other interesting and faster Socket 370 CPUs, too. I never was able to acquire a P3 1400MHz Tualatin. ( the 256k L2 version ) The 512K L2 version is somewhat common, and reasonably priced. I even have a desktop motherboard that supports the 512K version, Gigabyte GA-60XET. Matter of fact, I almost used that in the Milano. The 1400Mhz is the fastest P3 Tualatin. Some of the other CPU clock/bus speed combos you talk about are extremely rare. I am 99% certain that the pinout for the PB872 board is a forerunner of the pinout on newer Intel boards like the D815 series. Yeah, it was made special for PB, but you can bet for sure that Intel's special build motherboards still follow a pattern to standardize and simplify the board layout and production. And that is a good thing. Even the Dell variant of the SE440BX-2 with its ridiculous fake-ATX power connector looks like a vanilla one in all other respects. Huh? Whazzat ? Not sure I have seen that. Download the Intel D815EEA technical spec and look at the table on page 71: OK, I'll have a look. I used an Intel D815EEA2U in the Milano. I have another laying around. I'll check the pin out. Maybe it matchs this board. Neato. It's always been very comforting to work with Intel-made or -designed motherboards, because they are extremely consistent in their overall design and layout. They also work well. Pity that PB did not pay more attention to other aspects of product quality in selling their gear, else they might still be around. Now GateMachines is following the PB business plan of using quality Intel motherboards, but using other more marginal hardware backed up by 4th rate tech support... Ben Myers Funny you mention that. I have had eMachines collecting around here........ and I'm impressed. They are nothing like I remember. The first one I opened up that had an Intel motherboard really got my attention. 865 chipset. Recently got one with some bad caps on the motherboard, and since it was an Intel board this rather surprised me. But it works fine after I replaced the caps. http://home.fuse.net/bobwatts/capjob.htm Gonna go have a look at your pinout suggestion. bob |
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More comments.
Yes! Dell decided to use exactly the same connector as the ATX connector on virtually all of its P3 desktops and also the later P2 one. Leave the P3 Precisions out of this, because they were just plain wierd non-standard. So if you take a Dell PSU and plug it into a garden variety P3 motherboard, there are two possibilities. You fry the motherboard, or nothing happens. Same if you plug a standard P3 PSU into a Dell P3 motherboard, Optiplex or Dimension. On the Dell setups, the wire leads carry different voltages and polarities than on the standard ones. Cute lock-in feature, eh? Keeps the rabble independent computer service people from doing much to fix Dell systems, until the rabble gets wise. Starting with the Socket 478 desktops, Dell began using standard ATX12v power supplies. Don't blame Intel for the blown caps in the eMachines. GateMachines uses the same crapola Bestec brand (even the same part number) power supply found now in Compaq Presarios and HP Pavilions. I'll bet that the same contract manufacturer assembles them all, as was once the case for eMachines and HP Pavilion P3s. If the power supply goes for almost any reason, it almost always takes down the motherboard along with it. I have some attractive (if you like the silver and black motif) eMachines cases dead empty but with XP Home stickers, and I'm still trying to figure out what to do with them. Compaq Presarios and HP Pavilions blow up the same way, too. Either the caps are obviously blown from over-voltage or something else fails... Ben Myers On Sun, 3 Feb 2008 12:04:39 -0500, "Robert E. Watts" wrote: Hi Ben ! Have tried posting the following message twice. It won't stick. Changed headers. I have seen this before with this newsgroup. Seems that sometimes I can't post to this ng if I have links in it. Weird. "Ben Myers" wrote in message Bob, Any substantial cash reward for 1100MHz Tualatin CPUs? How about 1400MHz Tualatins? I have two of the former and one of the latter still in captivity last time I looked. Maybe some other interesting and faster Socket 370 CPUs, too. I never was able to acquire a P3 1400MHz Tualatin. ( the 256k L2 version ) The 512K L2 version is somewhat common, and reasonably priced. I even have a desktop motherboard that supports the 512K version, Gigabyte GA-60XET. Matter of fact, I almost used that in the Milano. The 1400Mhz is the fastest P3 Tualatin. Some of the other CPU clock/bus speed combos you talk about are extremely rare. I am 99% certain that the pinout for the PB872 board is a forerunner of the pinout on newer Intel boards like the D815 series. Yeah, it was made special for PB, but you can bet for sure that Intel's special build motherboards still follow a pattern to standardize and simplify the board layout and production. And that is a good thing. Even the Dell variant of the SE440BX-2 with its ridiculous fake-ATX power connector looks like a vanilla one in all other respects. Huh? Whazzat ? Not sure I have seen that. Download the Intel D815EEA technical spec and look at the table on page 71: OK, I'll have a look. I used an Intel D815EEA2U in the Milano. I have another laying around. I'll check the pin out. Maybe it matchs this board. Neato. It's always been very comforting to work with Intel-made or -designed motherboards, because they are extremely consistent in their overall design and layout. They also work well. Pity that PB did not pay more attention to other aspects of product quality in selling their gear, else they might still be around. Now GateMachines is following the PB business plan of using quality Intel motherboards, but using other more marginal hardware backed up by 4th rate tech support... Ben Myers Funny you mention that. I have had eMachines collecting around here........ and I'm impressed. They are nothing like I remember. The first one I opened up that had an Intel motherboard really got my attention. 865 chipset. Recently got one with some bad caps on the motherboard, and since it was an Intel board this rather surprised me. But it works fine after I replaced the caps. http://home.fuse.net/bobwatts/capjob.htm Gonna go have a look at your pinout suggestion. bob |
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On Feb 3, 5:46*pm, Ben Myers
wrote: More comments. Yes! *Dell decided to use exactly the same connector as the ATX connector on virtually all of its P3 desktops and also the later P2 one. * Leave the P3 Precisions out of this, because they were just plain wierd non-standard. So if you take a Dell PSU and plug it into a garden variety P3 motherboard, there are two possibilities. *You fry the motherboard, or nothing happens. *Same if you plug a standard P3 PSU into a Dell P3 motherboard, Optiplex or Dimension. On the Dell setups, the wire leads carry different voltages and polarities than on the standard ones. * Cute lock-in feature, eh? * Keeps the rabble independent computer service people from doing much to fix Dell systems, until the rabble gets wise. *Starting with the Socket 478 desktops, Dell began using standard ATX12v power supplies. Don't blame Intel for the blown caps in the eMachines. *GateMachines uses the same crapola Bestec brand (even the same part number) power supply found now in Compaq Presarios and HP Pavilions. *I'll bet that the same contract manufacturer assembles them all, as was once the case for eMachines and HP Pavilion P3s.. *If the power supply goes for almost any reason, it almost always takes down the motherboard along with it. *I have some attractive (if you like the silver and black motif) eMachines cases dead empty but with XP Home stickers, and I'm still trying to figure out what to do with them. *Compaq Presarios and HP Pavilions blow up the same way, too. * Either the caps are obviously blown from over-voltage or something else fails... Ben Myers On Sun, 3 Feb 2008 12:04:39 -0500, "Robert E. Watts" wrote: Hi Ben ! Have tried posting the following message twice. It won't stick. Changed headers. I have seen this before with this newsgroup. Seems that sometimes I can't post to this ng if I have links in it. Weird. "Ben Myers" *wrote in message Bob, Any substantial cash reward for 1100MHz Tualatin CPUs? * How about 1400MHz Tualatins? * I have two of the former and one of the latter still in captivity last time I looked. * Maybe some other interesting and faster Socket 370 CPUs, too. I never was able to acquire a P3 1400MHz Tualatin. ( the 256k L2 version ) The 512K L2 version is somewhat common, and reasonably priced. I even have a desktop motherboard that supports the 512K version, Gigabyte GA-60XET. Matter of fact, I almost used that in the Milano. The 1400Mhz is the fastest P3 Tualatin. Some of the other CPU clock/bus speed combos you talk about are extremely rare. I am 99% certain that the pinout for the PB872 board is a forerunner of the pinout on newer Intel boards like the D815 series. * Yeah, it was made special for PB, but you can bet for sure that Intel's special build motherboards still follow a pattern to standardize and simplify the board layout and production. And that is a good thing. Even the Dell variant of the SE440BX-2 with its ridiculous fake-ATX power connector looks like a vanilla one in all other respects. Huh? *Whazzat ? Not sure I have seen that. Download the Intel D815EEA technical spec and look at the table on page 71: OK, I'll have a look. I used an Intel *D815EEA2U in the Milano. I have another laying around. I'll check the pin out. Maybe it matchs this board.. Neato. It's always been very comforting to work with Intel-made or -designed motherboards, because they are extremely consistent in their overall design and layout. *They also work well. * Pity that PB did not pay more attention to other aspects of product quality in selling their gear, else they might still be around. *Now GateMachines is following the PB business plan of using quality Intel motherboards, but using other more marginal hardware backed up by 4th rate tech support... Ben Myers Funny you mention that. I have had eMachines collecting around here......... and I'm impressed. They are nothing like I remember. The first one I opened up that had an Intel motherboard really got my attention. 865 chipset. Recently got one with some bad caps on the motherboard, and since it was an Intel board this rather surprised me. But it works fine after I replaced the caps. http://home.fuse.net/bobwatts/capjob.htm Gonna go have a look at your pinout suggestion. bob- Hide quoted text - - Show quoted text - BEN A properly designed power DC suppy whether it be a switchable one or standard transformer driven one should not under except exteme circumstances output over voltage . If the zener reference used has a proper reverse bias to the regulating transistor ot IC circuit then the circuit should shut off at each over voltage point. This is what actually happens unless the circuit does not shut down entirely with zener failure to the regulating circuit and the actual input voltage to the regulatror is pass to the output. Many power supplies and also the primo ones fail in this entrely. Also the caps used in these systems work right at the operating volatge and have very little leanway. It use to be standard practice to make sure the cap had a 3x applied voltage value. Motherboards are also cheap in this desing saving just a few pennies to use this long time accepted practice. Also the cips themselves can have gated protection. What I am saying is that not only are the PSU made cheaply the MB's do not lag far behind |
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Metronid,
I hear you. But over the last two-three years I've seen a steady parade of failed eMachines, HP Pavilion, and Compaq Presario systems here. The common denominator is the pure crap Bestec 250w power supply with a yellow sticker on it. You cannot ever convince me to put one of these into a computer as a permanent solution. I'm even hesitant to use one for testing. If you anybody in love with Bestec power supplies, I gladly pack them all up and ship them off for a buck apiece plus exact cost of shipping. Let somebody else screw up their systems with Bestecs. I agree that mobo quality has fallen off, along with the quality of most any other hardware. This is inevitable as both manufacturers and consumers alike push for ever more speed and capacity at ever decreasing prices. Something has to give, and it is product quality. I have seen a few failed Intel motherboards, too, but overall, the failure rate is pretty low and they are rock solid, dependable performers. Very predictable, but no glitz, bright colors or overclocking. But, then, I make no effort to build or sell computers to people who want the glitz and color or to play games. So Intel boards are just about all that I use... Ben Myers On Sun, 3 Feb 2008 15:38:25 -0800 (PST), metronid wrote: SNIP BEN A properly designed power DC suppy whether it be a switchable one or standard transformer driven one should not under except exteme circumstances output over voltage . If the zener reference used has a proper reverse bias to the regulating transistor ot IC circuit then the circuit should shut off at each over voltage point. This is what actually happens unless the circuit does not shut down entirely with zener failure to the regulating circuit and the actual input voltage to the regulatror is pass to the output. Many power supplies and also the primo ones fail in this entrely. Also the caps used in these systems work right at the operating volatge and have very little leanway. It use to be standard practice to make sure the cap had a 3x applied voltage value. Motherboards are also cheap in this desing saving just a few pennies to use this long time accepted practice. Also the cips themselves can have gated protection. What I am saying is that not only are the PSU made cheaply the MB's do not lag far behind |
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Ben I'm glad you posted this, I almost picked up a Bestec at the closing
comp-usa...so what would be a good power supply for the old pb's like my 910 which has a 'LiteOn' power supply ( 90W dc)? mc |
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Another LiteOn, a consistently reliable brand. LiteOn produced power supplies
for a lot of name brand companies. I had a bunch of LiteOn 300w ATX power supplies, acquired when DEC was selling off inventory. Excellent power supply which would work in any ATX box with standard sized power supply. 90w seems a little small. Is the power supply small in shape, too? Matching the size with a higher wattage one would be a challenge... Ben Myers On Tue, 05 Feb 2008 20:37:49 GMT, "mc" wrote: Ben I'm glad you posted this, I almost picked up a Bestec at the closing comp-usa...so what would be a good power supply for the old pb's like my 910 which has a 'LiteOn' power supply ( 90W dc)? mc |
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No the power supply chasis fill the width of the tower, so it seem a normal
size.. Model PS-5101-28, Input 100-127 4A, 200-240 2A, Output +5v= 10A max, -12v=0.2A, +5sb=0.15. DC output =90w, combined +5 & 3.3 = 70w Is it possible to put Too Big of a power supply in? mc "Ben Myers" wrote in message ... Another LiteOn, a consistently reliable brand. LiteOn produced power supplies for a lot of name brand companies. I had a bunch of LiteOn 300w ATX power supplies, acquired when DEC was selling off inventory. Excellent power supply which would work in any ATX box with standard sized power supply. 90w seems a little small. Is the power supply small in shape, too? Matching the size with a higher wattage one would be a challenge... Ben Myers On Tue, 05 Feb 2008 20:37:49 GMT, "mc" wrote: Ben I'm glad you posted this, I almost picked up a Bestec at the closing comp-usa...so what would be a good power supply for the old pb's like my 910 which has a 'LiteOn' power supply ( 90W dc)? mc |
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I found some PS-5101-2B power supplies on eBay. One of the photos ***looks***
like the power supply has a standard 4-hole mounting pattern, but that it is less deep than a standard power supply. How much clearance is there between the power supply you have and the CD-ROM drive? Measure the depth of the power supply and the distance between it and the CD-ROM drive. A standard sized ATX power supply is probably too big physically, but I have seen (and I may have) a couple that would fit. A power supply can never have too much wattage, only too little. The wattage rating is the MAXIMUM wattage that it is able to produce. In actual use, the wattage consumed by everything in the system should be less than the maximum... Ben On Wed, 06 Feb 2008 23:43:53 GMT, "mc" wrote: No the power supply chasis fill the width of the tower, so it seem a normal size.. Model PS-5101-28, Input 100-127 4A, 200-240 2A, Output +5v= 10A max, -12v=0.2A, +5sb=0.15. DC output =90w, combined +5 & 3.3 = 70w Is it possible to put Too Big of a power supply in? mc "Ben Myers" wrote in message .. . Another LiteOn, a consistently reliable brand. LiteOn produced power supplies for a lot of name brand companies. I had a bunch of LiteOn 300w ATX power supplies, acquired when DEC was selling off inventory. Excellent power supply which would work in any ATX box with standard sized power supply. 90w seems a little small. Is the power supply small in shape, too? Matching the size with a higher wattage one would be a challenge... Ben Myers On Tue, 05 Feb 2008 20:37:49 GMT, "mc" wrote: Ben I'm glad you posted this, I almost picked up a Bestec at the closing comp-usa...so what would be a good power supply for the old pb's like my 910 which has a 'LiteOn' power supply ( 90W dc)? mc |
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"Ben Myers" wrote in message ... I found some PS-5101-2B power supplies on eBay. One of the photos ***looks*** like the power supply has a standard 4-hole mounting pattern, but that it is less deep than a standard power supply. How much clearance is there between the power supply you have and the CD-ROM drive? Measure the depth of the power supply and the distance between it and the CD-ROM drive. A standard sized ATX power supply is probably too big physically, but I have seen (and I may have) a couple that would fit. I have 1.5" between the ribbon (cd) and the pwer supply. It would be 2" chasis to chasis not including the ribbon. The top down dimension is 3", the back to front is 5" the width across the tower is 6". So is this a normal size power box? mc A power supply can never have too much wattage, only too little. The wattage rating is the MAXIMUM wattage that it is able to produce. In actual use, the wattage consumed by everything in the system should be less than the maximum... Ben On Wed, 06 Feb 2008 23:43:53 GMT, "mc" wrote: No the power supply chasis fill the width of the tower, so it seem a normal size.. Model PS-5101-28, Input 100-127 4A, 200-240 2A, Output +5v= 10A max, -12v=0.2A, +5sb=0.15. DC output =90w, combined +5 & 3.3 = 70w Is it possible to put Too Big of a power supply in? mc "Ben Myers" wrote in message . .. Another LiteOn, a consistently reliable brand. LiteOn produced power supplies for a lot of name brand companies. I had a bunch of LiteOn 300w ATX power supplies, acquired when DEC was selling off inventory. Excellent power supply which would work in any ATX box with standard sized power supply. 90w seems a little small. Is the power supply small in shape, too? Matching the size with a higher wattage one would be a challenge... Ben Myers On Tue, 05 Feb 2008 20:37:49 GMT, "mc" wrote: Ben I'm glad you posted this, I almost picked up a Bestec at the closing comp-usa...so what would be a good power supply for the old pb's like my 910 which has a 'LiteOn' power supply ( 90W dc)? mc |
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