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#1
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p2b voltage reg replacement
I have a p2b-ls rev. 1.02 (minus the Lan...).
To facilitate a CPU upgrade, I am planning on replacing the voltage reg. chip. The board has the HIP6004A, and I have obtained the replacement HIP6004BCB. From what I've seen in the data sheets the chips are identical except that the BCB regulates to 1.3V where the ACB only goes to 1.8V. I'm interested to hear from anyone who has done this mod. Aside from the details of desoldering and resoldering the chip, are there any other considerations? eg are there any other components (eg power mosfets, caps) that need replacing. Any other tips? Thanks! Regards, Paul. |
#2
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Hey Paul,
Other than being careful about desoldering and resoldering I don't think you need to replace anything else. I had considered doing the same thing on my P2B-S rev 1.02. But I decided that 1.8 volts is good enough of a voltage to run my celeron 600 @ 900 considering it uses 1.7 volts. I did a mod to a Slotket adapter to allow me to run the celeron. I just shorted pins A119 to A120. It tells the slotket to use 1.8 volts instead of 1.7 volts. Here is the info in case your curious. http://homepage.hispeed.ch/rscheideg...grade_faq.html Good luck and let us know how it works out. Frank "Paul R. Hunt" wrote in message ... I have a p2b-ls rev. 1.02 (minus the Lan...). To facilitate a CPU upgrade, I am planning on replacing the voltage reg. chip. The board has the HIP6004A, and I have obtained the replacement HIP6004BCB. From what I've seen in the data sheets the chips are identical except that the BCB regulates to 1.3V where the ACB only goes to 1.8V. I'm interested to hear from anyone who has done this mod. Aside from the details of desoldering and resoldering the chip, are there any other considerations? eg are there any other components (eg power mosfets, caps) that need replacing. Any other tips? Thanks! Regards, Paul. |
#3
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Paul R. Hunt wrote: I have a p2b-ls rev. 1.02 (minus the Lan...). To facilitate a CPU upgrade, I am planning on replacing the voltage reg. chip. The board has the HIP6004A, and I have obtained the replacement HIP6004BCB. From what I've seen in the data sheets the chips are identical except that the BCB regulates to 1.3V where the ACB only goes to 1.8V. I'm interested to hear from anyone who has done this mod. Aside from the details of desoldering and resoldering the chip, are there any other considerations? eg are there any other components (eg power mosfets, caps) that need replacing. Any other tips? Thanks! Regards, Paul. I've upgraded many P2B-xx regulators, and the HIP6004BCB is indeed completely pin compatible so no other component changes are required. Asus made no other changes to the VRM circuitry when they started using BCB regulators on the later P2B revisions as far as I've been able to determine. Note that this modification would only be required if you plan on upgrading to a Tualatin processor - all Coppermine processors will safely run on the 1.8v provided by the existing regulator. I usually change the clock generator as well when upgrading older P2Bs with onboard SCSI as the existing chip is limited to 112Mhz FSB, whereas an ICS9250-08 is pin-compatible and capable of up to 150Mhz FSB. The early-stepping BX chipsets are rarely stable at 150Mhz, but stability at 133Mhz is virtually guaranteed and 140Mhz is probable. You may find my P2B modification site interesting: http://tipperlinne.com/p2bmod HTH P2B |
#4
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In article , "FrankG"
wrote: Hey Paul, Other than being careful about desoldering and resoldering I don't think you need to replace anything else. I had considered doing the same thing on my P2B-S rev 1.02. But I decided that 1.8 volts is good enough of a voltage to run my celeron 600 @ 900 considering it uses 1.7 volts. I did a mod to a Slotket adapter to allow me to run the celeron. I just shorted pins A119 to A120. It tells the slotket to use 1.8 volts instead of 1.7 volts. Here is the info in case your curious. http://homepage.hispeed.ch/rscheideg...grade_faq.html Good luck and let us know how it works out. Frank Considering the general availability of Tualatins, a Powerleap gets you an adapter and a processor at the same time. All you need is to update the BIOS, before installing the Powerleap. http://powerleap.com/PL-iP3T.html PL-iP3/T 1.1 GHz Intel Celeron $99.95 With the 1.1/100/256KB processor, you can take a shot at overclocking to 1.46/133, but as the AGP is 2/3rds of 133, you'll need an AGP card that can hack 89MHz. Just avoid any of the current generation ATI9800/5900 style cards, as some of them only go to 75MHz, or so I've read. ( Look up Celeron Tualatin 1100 FCPGA2 on this site: http://www.cpudatabase.com/CPUdb/ - the majority of overclocking efforts succeed and give you better memory bandwidth, which is the main benefit.) I've done the mod on my P2B-S, and had trouble with only one pin. There is a pad on the board, with no track running to it, and that one is all too easy to tear off the board. No harm is done, other than the cosmetic issue, as the pin isn't used. I used a cheaper upgradeware slocket, but the cost of parts and tools for the mod was more than the cost of the Powerleap above - fun, but a bad deal. You could get some chipquik, a low temp soldering alloy, and if you melt some of that on each pin, it reduces the melting point of the metal puddle that forms. That can make removal a bit easier, by pulling a piece of dental floss between the pin and the pad, while the modified solder is molten. Paul "Paul R. Hunt" wrote in message ... I have a p2b-ls rev. 1.02 (minus the Lan...). To facilitate a CPU upgrade, I am planning on replacing the voltage reg. chip. The board has the HIP6004A, and I have obtained the replacement HIP6004BCB. From what I've seen in the data sheets the chips are identical except that the BCB regulates to 1.3V where the ACB only goes to 1.8V. I'm interested to hear from anyone who has done this mod. Aside from the details of desoldering and resoldering the chip, are there any other considerations? eg are there any other components (eg power mosfets, caps) that need replacing. Any other tips? Thanks! Regards, Paul. |
#5
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Paul wrote: In article , "FrankG" wrote: Hey Paul, Other than being careful about desoldering and resoldering I don't think you need to replace anything else. I had considered doing the same thing on my P2B-S rev 1.02. But I decided that 1.8 volts is good enough of a voltage to run my celeron 600 @ 900 considering it uses 1.7 volts. I did a mod to a Slotket adapter to allow me to run the celeron. I just shorted pins A119 to A120. It tells the slotket to use 1.8 volts instead of 1.7 volts. Here is the info in case your curious. http://homepage.hispeed.ch/rscheideg...grade_faq.html Good luck and let us know how it works out. Frank Considering the general availability of Tualatins, a Powerleap gets you an adapter and a processor at the same time. All you need is to update the BIOS, before installing the Powerleap. http://powerleap.com/PL-iP3T.html PL-iP3/T 1.1 GHz Intel Celeron $99.95 With the 1.1/100/256KB processor, you can take a shot at overclocking to 1.46/133, Not on a P2B-LS 1.02 - unless he changes the clock generator, FSB is limited to 112Mhz. but as the AGP is 2/3rds of 133, you'll need an AGP card that can hack 89MHz. Just avoid any of the current generation ATI9800/5900 style cards, as some of them only go to 75MHz, or so I've read. ( Look up Celeron Tualatin 1100 FCPGA2 on this site: http://www.cpudatabase.com/CPUdb/ - the majority of overclocking efforts succeed and give you better memory bandwidth, which is the main benefit.) I've done the mod on my P2B-S, and had trouble with only one pin. There is a pad on the board, with no track running to it, and that one is all too easy to tear off the board. No harm is done, other than the cosmetic issue, as the pin isn't used. I used a cheaper upgradeware slocket, but the cost of parts and tools for the mod was more than the cost of the Powerleap above - fun, but a bad deal. You could get some chipquik, a low temp soldering alloy, and if you melt some of that on each pin, it reduces the melting point of the metal puddle that forms. That can make removal a bit easier, by pulling a piece of dental floss between the pin and the pad, while the modified solder is molten. Chipquik is great stuff, makes surface mount rework easy without special tools. Using copious amounts of paste flux and chipquik, you can get the chip to float in the resulting puddle at only 300F. Chipquik can be reused several times before the added solder raises it's melting point to higher a than desirable temperature. Dental floss works well but tends to bend the pins - not a problem if the chip will be discarded, but due to limited availability of these parts, it's often necessary to transplant chips. I use stainless steel matrix bands (ask your dentist) or automotive feeler gauges. Solder won't stick to stainless steel, and a strip .020" or thinner will slide under the chip body and allow it to be lifted off the board without bending pins. P2B Paul "Paul R. Hunt" wrote in message . .. I have a p2b-ls rev. 1.02 (minus the Lan...). To facilitate a CPU upgrade, I am planning on replacing the voltage reg. chip. The board has the HIP6004A, and I have obtained the replacement HIP6004BCB. From what I've seen in the data sheets the chips are identical except that the BCB regulates to 1.3V where the ACB only goes to 1.8V. I'm interested to hear from anyone who has done this mod. Aside from the details of desoldering and resoldering the chip, are there any other considerations? eg are there any other components (eg power mosfets, caps) that need replacing. Any other tips? Thanks! Regards, Paul. |
#6
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Paul R. Hunt wrote: I have a p2b-ls rev. 1.02 (minus the Lan...). To facilitate a CPU upgrade, I am planning on replacing the voltage reg. chip. The board has the HIP6004A, and I have obtained the replacement HIP6004BCB. From what I've seen in the data sheets the chips are identical except that the BCB regulates to 1.3V where the ACB only goes to 1.8V. I'm interested to hear from anyone who has done this mod. Aside from the details of desoldering and resoldering the chip, are there any other considerations? eg are there any other components (eg power mosfets, caps) that need replacing. Any other tips? Thanks! Regards, Paul. Paul, I wrote a detailed reply to your private email, but your ISP rejected it because my (dynamic) IP address is on your ISP's anti-spam blacklist. My ISP is the biggest in Canada, so inevitably has a large number of clients infected with spammer's trojans at any given time - nothing I can do about it apart from running desktop firewalls and spyware scanners etc. to ensure my systems are not contributing to the problem. Aggressive blacklisting certainly reduces the volume of spam delivered to end users, but it becomes counterproductive when it results in large ISPs blocking each other. We may be forced to continue the discussion here. P2B |
#7
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Paul R. Hunt wrote in message . ..
I have a p2b-ls rev. 1.02 (minus the Lan...). To facilitate a CPU upgrade, I am planning on replacing the voltage reg. chip. The board has the HIP6004A, and I have obtained the replacement HIP6004BCB. From what I've seen in the data sheets the chips are identical except that the BCB regulates to 1.3V where the ACB only goes to 1.8V. OK, I've performed the transplant. Not the most fun I've had with a soldering iron, but all seems to work OK. I've got a Slot-T and am waiting on delivery of a Tualatin Celeron 1.3GHz (possibly 1.4Ghz). Thanks to the info on P2B's web site, I'm going to patch the BIOS with the current microcode. The clock generator on my board only goes to 112MHz, but I'm not going to attempt an upgrade. There are FSB jumpers on the Slot-T. Why? Will let you know how it all works out. Thanks for responses so far! Regards, Paul. |
#8
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Paul Hunt wrote: Paul R. Hunt wrote in message . .. I have a p2b-ls rev. 1.02 (minus the Lan...). To facilitate a CPU upgrade, I am planning on replacing the voltage reg. chip. The board has the HIP6004A, and I have obtained the replacement HIP6004BCB. From what I've seen in the data sheets the chips are identical except that the BCB regulates to 1.3V where the ACB only goes to 1.8V. OK, I've performed the transplant. Not the most fun I've had with a soldering iron, but all seems to work OK. I've got a Slot-T and am waiting on delivery of a Tualatin Celeron 1.3GHz (possibly 1.4Ghz). Thanks to the info on P2B's web site, I'm going to patch the BIOS with the current microcode. The clock generator on my board only goes to 112MHz, but I'm not going to attempt an upgrade. There are FSB jumpers on the Slot-T. Why? They can be used to override the FSB request from the processor to the motherboard, in the same way the voltage jumpers override the processor's VID request. These jumpers will have no effect on your board since the P2B series uses motherboard jumpers to set the FSB and ignores the processor's FSB request. Will let you know how it all works out. Thanks for responses so far! Regards, Paul. |
#9
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I am amazed to see there is still a lot of meaningful discussion on this borad in the age of 2004.
I haven't done a lot of research, I am still using a P2BF with an overclocked Celeron 300 running at 450Mhz... for basic stuff, it's fine. Given the fact that there is a lot of Celeron at beyond 1G Hz speed at dirt cheap price, I always want to buy one an enjoy the speed bump. May I know what is the easiest route for me to get some extra speed out of the P2B-F? P2B wrote: Paul Hunt wrote: Paul R. Hunt wrote in message . .. I have a p2b-ls rev. 1.02 (minus the Lan...). To facilitate a CPU upgrade, I am planning on replacing the voltage reg. chip. The board has the HIP6004A, and I have obtained the replacement HIP6004BCB. From what I've seen in the data sheets the chips are identical except that the BCB regulates to 1.3V where the ACB only goes to 1.8V. OK, I've performed the transplant. Not the most fun I've had with a soldering iron, but all seems to work OK. I've got a Slot-T and am waiting on delivery of a Tualatin Celeron 1.3GHz (possibly 1.4Ghz). Thanks to the info on P2B's web site, I'm going to patch the BIOS with the current microcode. The clock generator on my board only goes to 112MHz, but I'm not going to attempt an upgrade. There are FSB jumpers on the Slot-T. Why? They can be used to override the FSB request from the processor to the motherboard, in the same way the voltage jumpers override the processor's VID request. These jumpers will have no effect on your board since the P2B series uses motherboard jumpers to set the FSB and ignores the processor's FSB request. Will let you know how it all works out. Thanks for responses so far! Regards, Paul. |
#10
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The simplest is to get an Abit slotket if you have an older version of the
P2B-F. The highest cpu is the 1ghz Celeron (forget powerleap for Tualatin support-too expensive!!!). If you're lucky, if you have good AGP card, PC133 ram and 1Ghz cpu, you can overclock to 1.3Ghz!! If you manage that, that's incredible for a '98 era mb!! "( aka iCefoX )" wrote in message ... I am amazed to see there is still a lot of meaningful discussion on this borad in the age of 2004. I haven't done a lot of research, I am still using a P2BF with an overclocked Celeron 300 running at 450Mhz... for basic stuff, it's fine. Given the fact that there is a lot of Celeron at beyond 1G Hz speed at dirt cheap price, I always want to buy one an enjoy the speed bump. May I know what is the easiest route for me to get some extra speed out of the P2B-F? P2B wrote: Paul Hunt wrote: Paul R. Hunt wrote in message . .. I have a p2b-ls rev. 1.02 (minus the Lan...). To facilitate a CPU upgrade, I am planning on replacing the voltage reg. chip. The board has the HIP6004A, and I have obtained the replacement HIP6004BCB. From what I've seen in the data sheets the chips are identical except that the BCB regulates to 1.3V where the ACB only goes to 1.8V. OK, I've performed the transplant. Not the most fun I've had with a soldering iron, but all seems to work OK. I've got a Slot-T and am waiting on delivery of a Tualatin Celeron 1.3GHz (possibly 1.4Ghz). Thanks to the info on P2B's web site, I'm going to patch the BIOS with the current microcode. The clock generator on my board only goes to 112MHz, but I'm not going to attempt an upgrade. There are FSB jumpers on the Slot-T. Why? They can be used to override the FSB request from the processor to the motherboard, in the same way the voltage jumpers override the processor's VID request. These jumpers will have no effect on your board since the P2B series uses motherboard jumpers to set the FSB and ignores the processor's FSB request. Will let you know how it all works out. Thanks for responses so far! Regards, Paul. |
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