Does it work with Intel 733/256/133 CPU? Does it work with PC133MHz ECC SDRAM? I just got this board but it won't power up. TIA
ASUS P2B-B Question.. Urgent!!
- Thread starter jonaBishop
- Start date
If you're using a FCPGA chip with a slocket adapter, manually set the voltage on the adapter to 1.8 V. The default voltage on PIII is 1.7 V (for cC0 stepping PIII's), and the minimum voltage many P2B revisions can support is 1.8 V. HOpefully you're using a FCPGA chip, as well as a slocket that allows you to manipulate core voltage. If so, set it to 1.8 V, and you should be set.
As for operation at 133 MHz FSB, nothing is guaranteed, by my own P2B is handling a PIII 933 without a hitch.
good luck
Mko.
As for operation at 133 MHz FSB, nothing is guaranteed, by my own P2B is handling a PIII 933 without a hitch.
good luck
Mko.
My P2B is Rev 1.10, BIOS 1006, running a P2 450Mhz. Asus website says only Rev 1.12 and later is upgradeable to P3 800Mhz (100Mhz FSB only). Mko could you advise me on my upgrade options.
ck
ck
You can use any Intel processor with a 100MHz FSB, or if you don't mind the AGP being out of spec at 89MHz, you can also use 133MHz FSB processors. The P2B-B does have a 1/4 PCI divider at 133MHz, so you do not need to worry about that either. Multiplier is NOT an issue, since all Intel processors are multiplier locked, and they will ignore whatever setting your motherboard has and use its own multiplier.
You must have the latest BIOS, either 1011 Final or 1013 Beta 007.
Depending on the revision of the board, you may or may not need to do a bit of tweaking for it to work. If you have PCB rev 1.12, it already has support for Coppermine voltages. Your revision, 1.10, does not automatically support the 1.65 volts requested by your processor. In such cases, you need to use a slotket with an FC-PGA processor, and set the slotket to manually request 1.80 volts, which is the lowest that boards as far back as rev 1.02 can handle. This voltage is fine for Coppermines, and assists greatly in overclocking should you want to. If you do not set the voltage manually on the slotket, the system will not boot.
You can find the PCB revision printed directly on the board in small lettering next to the name of the board itself, located between the PCI and ISA slots.
The P2B-B does support ECC SDRAM.
You must have the latest BIOS, either 1011 Final or 1013 Beta 007.
Depending on the revision of the board, you may or may not need to do a bit of tweaking for it to work. If you have PCB rev 1.12, it already has support for Coppermine voltages. Your revision, 1.10, does not automatically support the 1.65 volts requested by your processor. In such cases, you need to use a slotket with an FC-PGA processor, and set the slotket to manually request 1.80 volts, which is the lowest that boards as far back as rev 1.02 can handle. This voltage is fine for Coppermines, and assists greatly in overclocking should you want to. If you do not set the voltage manually on the slotket, the system will not boot.
You can find the PCB revision printed directly on the board in small lettering next to the name of the board itself, located between the PCI and ISA slots.
The P2B-B does support ECC SDRAM.
Thanks a lot, Andy.
I have downloaded BIOS 1011 and beta 1013. Is 1012 problematic ?
Is there a performance hit running a Coppermine XXX Mhz on a Asus P2B (BX), compared to say a CUSL2-C (815) board.
Thanks once again, I really appreciate the tips.
Ck
I have downloaded BIOS 1011 and beta 1013. Is 1012 problematic ?
Is there a performance hit running a Coppermine XXX Mhz on a Asus P2B (BX), compared to say a CUSL2-C (815) board.
Thanks once again, I really appreciate the tips.
Ck
Andy RULES!!!
Here's my Asus BX overclocking story, with help from Andy..
Do you work for Asus Andy? If not, which company?
<< You can use any Intel processor with a 100MHz FSB, or if you don't mind the AGP being out of spec at 89MHz, you can also use 133MHz FSB processors. The P2B-B does have a 1/4 PCI divider at 133MHz, so you do not need to worry about that either. Multiplier is NOT an issue, since all Intel processors are multiplier locked, and they will ignore whatever setting your motherboard has and use its own multiplier.
You must have the latest BIOS, either 1011 Final or 1013 Beta 007.
Depending on the revision of the board, you may or may not need to do a bit of tweaking for it to work. If you have PCB rev 1.12, it already has support for Coppermine voltages. Your revision, 1.10, does not automatically support the 1.65 volts requested by your processor. In such cases, you need to use a slotket with an FC-PGA processor, and set the slotket to manually request 1.80 volts, which is the lowest that boards as far back as rev 1.02 can handle. This voltage is fine for Coppermines, and assists greatly in overclocking should you want to. If you do not set the voltage manually on the slotket, the system will not boot.
You can find the PCB revision printed directly on the board in small lettering next to the name of the board itself, located between the PCI and ISA slots.
The P2B-B does support ECC SDRAM. >>
Here's my Asus BX overclocking story, with help from Andy..
Do you work for Asus Andy? If not, which company?
<< You can use any Intel processor with a 100MHz FSB, or if you don't mind the AGP being out of spec at 89MHz, you can also use 133MHz FSB processors. The P2B-B does have a 1/4 PCI divider at 133MHz, so you do not need to worry about that either. Multiplier is NOT an issue, since all Intel processors are multiplier locked, and they will ignore whatever setting your motherboard has and use its own multiplier.
You must have the latest BIOS, either 1011 Final or 1013 Beta 007.
Depending on the revision of the board, you may or may not need to do a bit of tweaking for it to work. If you have PCB rev 1.12, it already has support for Coppermine voltages. Your revision, 1.10, does not automatically support the 1.65 volts requested by your processor. In such cases, you need to use a slotket with an FC-PGA processor, and set the slotket to manually request 1.80 volts, which is the lowest that boards as far back as rev 1.02 can handle. This voltage is fine for Coppermines, and assists greatly in overclocking should you want to. If you do not set the voltage manually on the slotket, the system will not boot.
You can find the PCB revision printed directly on the board in small lettering next to the name of the board itself, located between the PCI and ISA slots.
The P2B-B does support ECC SDRAM. >>
There is no 1012 Final BIOS for the P2B-B. It exists for the P2B, but not for the AT P2B-B board.
If you are going to buy something like a cC0 or cD0 stepping processor, I highly recommend that you flash to the 1013 Beta 007 BIOS, as this has full support for these latest steppings.
You will not lose any performance by staying with the BX chipset. If anything, the BX chipset performs marginally better than the i815E chipset.
If you are going to buy something like a cC0 or cD0 stepping processor, I highly recommend that you flash to the 1013 Beta 007 BIOS, as this has full support for these latest steppings.
You will not lose any performance by staying with the BX chipset. If anything, the BX chipset performs marginally better than the i815E chipset.
Thanks all for the input.
Andy,
If I'm not using the slotket CPU it won't work, correct? I have the slot 1 733. Thanks.
Andy,
If I'm not using the slotket CPU it won't work, correct? I have the slot 1 733. Thanks.
I'm not sure about PCB rev 1.10 of the AT version of the P2B.....I will need to ask CSC/TSD to be sure though.
If your processor is a cC0 stepping, you may be lucky as the ATX P2B rev 1.10 does go down as low as 1.70 volts....but the voltage increments are 0.10 volts, not 0.05 volts like a cB0 stepping will need.
I can't be sure either until I ask CSC/TSD or you actually give it a go. If your system does not POST, then you will need to change your processor to the FC-PGA version and get a slotket with manual voltage adjustments.
If your processor is a cC0 stepping, you may be lucky as the ATX P2B rev 1.10 does go down as low as 1.70 volts....but the voltage increments are 0.10 volts, not 0.05 volts like a cB0 stepping will need.
I can't be sure either until I ask CSC/TSD or you actually give it a go. If your system does not POST, then you will need to change your processor to the FC-PGA version and get a slotket with manual voltage adjustments.
SuperSix, you are absolutely right.
Andy rules. Largely because of Andy, I'm running a 3 year old motherboard at 933 MHz right now. I'm thinking of naming my first born AndyHui!!!
Andy, you said CSC/TSD. What do those stand for?
And, inquiring minds want to know: are you an Asus insider???
Mko.
Andy rules. Largely because of Andy, I'm running a 3 year old motherboard at 933 MHz right now. I'm thinking of naming my first born AndyHui!!!
Andy, you said CSC/TSD. What do those stand for?
And, inquiring minds want to know: are you an Asus insider???
Mko.
Andy, I have confused matters by jumping into Jonas post. I have an ATX P2B Rev 1.10 (not a P2B-B). So I can put in a Asus S370-DL slotket with a 1 Ghz FCPGA PIII (100Mhz FSB) with voltage set at 1.8V. I suppose the BIOS I downloaded earlier from your links were for the P2B-B. Could you confirm please.
I have a Dual GE450 Matrox AGP and suspect it will not run out of spec, as the display was blank and at a FSB of 103Mhz with a PII 450Mhz at 4.5 mutliplier. Are Matrox cards known to be fussy. So 133 FSB is ruled out.
Thanks
Ck
I have a Dual GE450 Matrox AGP and suspect it will not run out of spec, as the display was blank and at a FSB of 103Mhz with a PII 450Mhz at 4.5 mutliplier. Are Matrox cards known to be fussy. So 133 FSB is ruled out.
Thanks
Ck
CeeKay, your revision of the P2B should be able to run coppermine processors with no problem. The only requirement that you have to meet is to get a FCPGA version, and use a slotket that allows you to manipulate voltage (and manually set it to 1.8 V).
The 100 MHz FSB - 1GHz PIII FCPGA you were talking about - I was not aware that such a chip existed. I know that there are a limited amount of 100 MHz FSB - 1 GHz PIII's available, but I thought that they were all the slot 1 form factor (e.g. I thought that in the FCPGA form factor, the only 1GHz PIII's you could get were 133 FSB). Of course, I could be wrong.
With regards to your remark about not being able to run your matrox video card when your FSB was set at 103 - that's very surpising, since at that speed the AGP bus is so minimally overclocked (e.g. 69 Mhz instead of 66 MHz). I would not think that you were experiencing an AGP problem; have you ruled out other problems?
As Andy told me in a different thread, the beta bios 1013 has microcode that supports the cC0 stepping of the PIII, so it is advisable to flash to that bios. Having said that, on my old revision 1.02 Asus P2B, I was at first running my PIII 700 @ 933 using the bios 1012, and didn't have any noticeable problems. (although someone else did have some problems that went away when using beta bios 1013....)
Mko.
The 100 MHz FSB - 1GHz PIII FCPGA you were talking about - I was not aware that such a chip existed. I know that there are a limited amount of 100 MHz FSB - 1 GHz PIII's available, but I thought that they were all the slot 1 form factor (e.g. I thought that in the FCPGA form factor, the only 1GHz PIII's you could get were 133 FSB). Of course, I could be wrong.
With regards to your remark about not being able to run your matrox video card when your FSB was set at 103 - that's very surpising, since at that speed the AGP bus is so minimally overclocked (e.g. 69 Mhz instead of 66 MHz). I would not think that you were experiencing an AGP problem; have you ruled out other problems?
As Andy told me in a different thread, the beta bios 1013 has microcode that supports the cC0 stepping of the PIII, so it is advisable to flash to that bios. Having said that, on my old revision 1.02 Asus P2B, I was at first running my PIII 700 @ 933 using the bios 1012, and didn't have any noticeable problems. (although someone else did have some problems that went away when using beta bios 1013....)
Mko.
BIOSes for the P2B:
Version 1012 Final
Version 1013 Beta 007
BIOSes for the P2B-B:
Version 1011 Final
Version 1013 Beta 007
ceekay: all 1GHz Pentium IIIs are cC0 stepping...the PCB rev 1.10 of the P2B should have support for 1.70 volts, so you may be able to get away without needing to use a slotket. However, I would recommmend going the FC-PGA route with the voltage adjustable slotket anyway, just in case.
Version 1012 Final
Version 1013 Beta 007
BIOSes for the P2B-B:
Version 1011 Final
Version 1013 Beta 007
ceekay: all 1GHz Pentium IIIs are cC0 stepping...the PCB rev 1.10 of the P2B should have support for 1.70 volts, so you may be able to get away without needing to use a slotket. However, I would recommmend going the FC-PGA route with the voltage adjustable slotket anyway, just in case.
Didn't the 1ghz P3's come out during the cB0 days? The cC0 chips became available in the summer of '00, while 1ghz chips came out in early March of '00...
Re: Matrox. The G400 was the _champion_ of 100mhz AGP (BX@150mhz), so I would figure the G450 has a very high chance of making it that far... I don't know why it'd crash with such a mild overclock.
Re: Matrox. The G400 was the _champion_ of 100mhz AGP (BX@150mhz), so I would figure the G450 has a very high chance of making it that far... I don't know why it'd crash with such a mild overclock.
<< all 1GHz Pentium IIIs are cC0 stepping. >>
Actually, ive hand transfered the list just tonight so i can go cpu picking at my computer fair on saturday, can i be rude and point out that intel spec list has one part in cB0, the SL48S(OEM) and SL4FP(retail). The rest are split between cC0 and also coming available are the new cD0 stepping for the 1Ghz.
It appears (FOR NOW) that all 1Ghz cD0's have a chip code of SL5^^ with ^^ being the last 2 letter codes (e.g SL5DV for a cD0 retail)
Infact that holds true for the 933 too, but NOT the 866 (where the cD0 has a code of SL47J) all the rest of the cD0 for all chips are SL5's atm.
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