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upgrade board for socket 478 to L775 socket?
In article , "ajb"
wrote: This is just an inquiry. (Theoretically Speaking) Since the Asus P5P800SE is a chipset (865e) based very closely to the (875p)chipset found in our beloved P4c800 dlx.... why can't there be an add-on board or socket expansion (rememebr the Asus slocket?) that will allow us to upgrade to faster Intel chips???? I know Asus has managed to tweak core voltages in the CT-479 to accept Pentium mobile chips--so why not the L775-940 series packages? Opinions? Thanks. Asus P4c800 dlx P4 3.2E Ati x800xl AGP 2 Gig OCZ 400 DDR 2 Maxtors sata 120 G dimax9's SB Xfi Fatal1ty 1 Sony DVD-rw Bose Compaion series3 Standard intel fan When I did a quick comparison of S478 and LGA775 a while ago, I didn't see big differences between the two of them, in terms of functions. The LGA775 has more pins to carry power, and if you tried to stick a high end LGA775 device into the S478 socket, perhaps getting the necessary current to the processor would be one of the challenges. Imagine getting 80 amps to flow up through the socket, with minimal impact on supply inductance. I didn't bother to check VRM specs and load lines, but perhaps that would be another issue. How would you get BIOS support for the upgrade ? Would the BIOS misbehave when an LGA775 is seen ? Shoehorning a 35W processor, onto a higher power processor platform was probably pretty easy for Asus. Placing a higher power platform onto a lower power motherboard would not be quite as easy. Perhaps if you could put a three or eight phase regulator right on the adapter, along with the socket, work out a cooling solution when this thick "sandwich" is loaded into a socket, you could get it to work. (The Asrock solution, of adding an upgrade socket to their motherboard, is another way to implement an upgradable motherboard. I bet they haven't sold many upgrade adapters.) Asus probably did the CT-479, as part of a marketing survey, to determine if there was a market for Pentium-M motherboards. After all, making new motherboards would be more profitable than making a cheap adapter for the users. I am kinda surprised that companies like Powerleap and Upgradeware have been silent lately. Perhaps the R&D versus profit just isn't there for adapters ? Or perhaps the implementation details are a little too much to be done cheaply. Paul |
#2
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upgrade board for socket 478 to L775 socket?
Hey Paul, thanks for you technical perspective. I hope the Powerleap gang
jump all over this one. It would be nice to slap a dual core 900 series in my trusty P4c800 dx.(just dreaming I guess). "Paul" wrote in message ... In article , "ajb" wrote: This is just an inquiry. (Theoretically Speaking) Since the Asus P5P800SE is a chipset (865e) based very closely to the (875p)chipset found in our beloved P4c800 dlx.... why can't there be an add-on board or socket expansion (rememebr the Asus slocket?) that will allow us to upgrade to faster Intel chips???? I know Asus has managed to tweak core voltages in the CT-479 to accept Pentium mobile chips--so why not the L775-940 series packages? Opinions? Thanks. Asus P4c800 dlx P4 3.2E Ati x800xl AGP 2 Gig OCZ 400 DDR 2 Maxtors sata 120 G dimax9's SB Xfi Fatal1ty 1 Sony DVD-rw Bose Compaion series3 Standard intel fan When I did a quick comparison of S478 and LGA775 a while ago, I didn't see big differences between the two of them, in terms of functions. The LGA775 has more pins to carry power, and if you tried to stick a high end LGA775 device into the S478 socket, perhaps getting the necessary current to the processor would be one of the challenges. Imagine getting 80 amps to flow up through the socket, with minimal impact on supply inductance. I didn't bother to check VRM specs and load lines, but perhaps that would be another issue. How would you get BIOS support for the upgrade ? Would the BIOS misbehave when an LGA775 is seen ? Shoehorning a 35W processor, onto a higher power processor platform was probably pretty easy for Asus. Placing a higher power platform onto a lower power motherboard would not be quite as easy. Perhaps if you could put a three or eight phase regulator right on the adapter, along with the socket, work out a cooling solution when this thick "sandwich" is loaded into a socket, you could get it to work. (The Asrock solution, of adding an upgrade socket to their motherboard, is another way to implement an upgradable motherboard. I bet they haven't sold many upgrade adapters.) Asus probably did the CT-479, as part of a marketing survey, to determine if there was a market for Pentium-M motherboards. After all, making new motherboards would be more profitable than making a cheap adapter for the users. I am kinda surprised that companies like Powerleap and Upgradeware have been silent lately. Perhaps the R&D versus profit just isn't there for adapters ? Or perhaps the implementation details are a little too much to be done cheaply. Paul |
#3
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upgrade board for socket 478 to L775 socket?
ajb wrote:
Hey Paul, thanks for you technical perspective. I hope the Powerleap gang jump all over this one. It would be nice to slap a dual core 900 series in my trusty P4c800 dx.(just dreaming I guess). I doubt they will as the price for the adapter will cost more than the cost of a new motherboard. I purchased one of Powerleap's adapters for the Pentium 3 but I was placing it in a P2B-S motherboard which would have required a lot more to replace than the price of the adapter and new CPU. And with the announcements for new Pentiums later this year they would have to make it work with them also or have a very short production run. "Paul" wrote in message ... In article , "ajb" wrote: This is just an inquiry. (Theoretically Speaking) Since the Asus P5P800SE is a chipset (865e) based very closely to the (875p)chipset found in our beloved P4c800 dlx.... why can't there be an add-on board or socket expansion (rememebr the Asus slocket?) that will allow us to upgrade to faster Intel chips???? I know Asus has managed to tweak core voltages in the CT-479 to accept Pentium mobile chips--so why not the L775-940 series packages? Opinions? Thanks. Asus P4c800 dlx P4 3.2E Ati x800xl AGP 2 Gig OCZ 400 DDR 2 Maxtors sata 120 G dimax9's SB Xfi Fatal1ty 1 Sony DVD-rw Bose Compaion series3 Standard intel fan When I did a quick comparison of S478 and LGA775 a while ago, I didn't see big differences between the two of them, in terms of functions. The LGA775 has more pins to carry power, and if you tried to stick a high end LGA775 device into the S478 socket, perhaps getting the necessary current to the processor would be one of the challenges. Imagine getting 80 amps to flow up through the socket, with minimal impact on supply inductance. I didn't bother to check VRM specs and load lines, but perhaps that would be another issue. How would you get BIOS support for the upgrade ? Would the BIOS misbehave when an LGA775 is seen ? Shoehorning a 35W processor, onto a higher power processor platform was probably pretty easy for Asus. Placing a higher power platform onto a lower power motherboard would not be quite as easy. Perhaps if you could put a three or eight phase regulator right on the adapter, along with the socket, work out a cooling solution when this thick "sandwich" is loaded into a socket, you could get it to work. (The Asrock solution, of adding an upgrade socket to their motherboard, is another way to implement an upgradable motherboard. I bet they haven't sold many upgrade adapters.) Asus probably did the CT-479, as part of a marketing survey, to determine if there was a market for Pentium-M motherboards. After all, making new motherboards would be more profitable than making a cheap adapter for the users. I am kinda surprised that companies like Powerleap and Upgradeware have been silent lately. Perhaps the R&D versus profit just isn't there for adapters ? Or perhaps the implementation details are a little too much to be done cheaply. Paul |
#4
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upgrade board for socket 478 to L775 socket?
On a side note----look at the longevity of the P2b (BX chipset). I've also
got a 1ghz P3-processor (asus slocket) in this old pentium 2 class motherboard and I swear that it still works like a charm and seems speedier that my P4-3.2E sometimes. Now that board had a great upgrade path from a lowly PII-300 (remember those?) to a P3-1GHZ. Come on Asus ... do your thing for the P4C800 series.!!! Let's see an upgrade to Dual Core or at least faster single core processors. "Michael W. Ryder" wrote in message ... ajb wrote: Hey Paul, thanks for you technical perspective. I hope the Powerleap gang jump all over this one. It would be nice to slap a dual core 900 series in my trusty P4c800 dx.(just dreaming I guess). I doubt they will as the price for the adapter will cost more than the cost of a new motherboard. I purchased one of Powerleap's adapters for the Pentium 3 but I was placing it in a P2B-S motherboard which would have required a lot more to replace than the price of the adapter and new CPU. And with the announcements for new Pentiums later this year they would have to make it work with them also or have a very short production run. "Paul" wrote in message ... In article , "ajb" wrote: This is just an inquiry. (Theoretically Speaking) Since the Asus P5P800SE is a chipset (865e) based very closely to the (875p)chipset found in our beloved P4c800 dlx.... why can't there be an add-on board or socket expansion (rememebr the Asus slocket?) that will allow us to upgrade to faster Intel chips???? I know Asus has managed to tweak core voltages in the CT-479 to accept Pentium mobile chips--so why not the L775-940 series packages? Opinions? Thanks. Asus P4c800 dlx P4 3.2E Ati x800xl AGP 2 Gig OCZ 400 DDR 2 Maxtors sata 120 G dimax9's SB Xfi Fatal1ty 1 Sony DVD-rw Bose Compaion series3 Standard intel fan When I did a quick comparison of S478 and LGA775 a while ago, I didn't see big differences between the two of them, in terms of functions. The LGA775 has more pins to carry power, and if you tried to stick a high end LGA775 device into the S478 socket, perhaps getting the necessary current to the processor would be one of the challenges. Imagine getting 80 amps to flow up through the socket, with minimal impact on supply inductance. I didn't bother to check VRM specs and load lines, but perhaps that would be another issue. How would you get BIOS support for the upgrade ? Would the BIOS misbehave when an LGA775 is seen ? Shoehorning a 35W processor, onto a higher power processor platform was probably pretty easy for Asus. Placing a higher power platform onto a lower power motherboard would not be quite as easy. Perhaps if you could put a three or eight phase regulator right on the adapter, along with the socket, work out a cooling solution when this thick "sandwich" is loaded into a socket, you could get it to work. (The Asrock solution, of adding an upgrade socket to their motherboard, is another way to implement an upgradable motherboard. I bet they haven't sold many upgrade adapters.) Asus probably did the CT-479, as part of a marketing survey, to determine if there was a market for Pentium-M motherboards. After all, making new motherboards would be more profitable than making a cheap adapter for the users. I am kinda surprised that companies like Powerleap and Upgradeware have been silent lately. Perhaps the R&D versus profit just isn't there for adapters ? Or perhaps the implementation details are a little too much to be done cheaply. Paul |
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