P2B rev 1.02 pentium III processor upgrade HELP!

[nikey22]

I have an ASUS P2B Rev. 1.02, currently running a Pentium II 400Mhz
512cache CPU.

I have a Pentium III 550E CPU + a s370FC slotket with voltage
regulation and FSB dip switch.

I have set the voltages to 1.8V and the FSB to AUTO (the only options
are AUTO/133)

This is my system config right now:

Pentium II 400Mhz, 256Mb RAM (2 x 128 PC100)
nVidia Gforce2
WD 20Gb 7200 2mb Drive
44xmax CD rom
Sound Card generic PCI.

the pentium 550E is a 100Mhz FSB chip, so I know this should be
working. When I installed the slotket with the CPU&heatsink-fan and
powerup the computer, there is nothing on the screen, and the screen
says, NO SIGNAL.

the fan however is running, so I know the voltage setting is correct
(before at 1.6V, the fan didn't even run!!)...

There is one more thing I noticed, when I inserted the slotket in the
slot, it was a little wobbely since I don't have the retention
mechanism on it, but still I think it was a secure fit.

I have no idea what this slotket is called, but I do know that it is
FCPGA compliant and has its own voltage regulation.

Give me some suggestions guys!!!!!!

 

[Ayoub]

try reseating your videocard.
cheers

 

[Les Noel]

Check this out - http://www.overclockers.com/tips296/index.asp


I have an ASUS P2B Rev. 1.02, currently running a Pentium II 400Mhz
512cache CPU.

--snip--

 

[P2B]

I have an ASUS P2B Rev. 1.02, currently running a Pentium II 400Mhz
512cache CPU.

I have a Pentium III 550E CPU + a s370FC slotket with voltage
regulation and FSB dip switch.

s370FC? I'm not familiar with it. Who makes it?

I have set the voltages to 1.8V and the FSB to AUTO (the only options
are AUTO/133)

The FSB settings don't matter as the P2B reads it's FSB jumpers only,
and ignores the CPU's request. Odd it has no 100Mhz setting...

This is my system config right now:

Pentium II 400Mhz, 256Mb RAM (2 x 128 PC100)
nVidia Gforce2
WD 20Gb 7200 2mb Drive
44xmax CD rom
Sound Card generic PCI.

the pentium 550E is a 100Mhz FSB chip, so I know this should be
working. When I installed the slotket with the CPU&heatsink-fan and
powerup the computer, there is nothing on the screen, and the screen
says, NO SIGNAL.

the fan however is running, so I know the voltage setting is correct
(before at 1.6V, the fan didn't even run!!)...

There is one more thing I noticed, when I inserted the slotket in the
slot, it was a little wobbely since I don't have the retention
mechanism on it, but still I think it was a secure fit.

You've more than likely found the problem. The CPU fan spins, therefore
Vcore is available, but no beeps or POST - equals improperly seated
processor in most cases. Getting a processor to seat properly on a P2B
can be a pain, and they get worse with repeated insertion cycles -
especially with no retention mechanism, which is a bad idea because the
processor will tilt under the weight of the HSF, which can distort the
pins in the slot and make seating the processor even more difficult.
Most retention mechanisms will stand on the board and hold the processor
vertical without mounting them, that's how I do all my bench testing.

A problem with some slot adapters (and 300A Celerons!) is they go too
far into the slot. Try pushing the adapter fully into the slot, then
pulling it out almost 1 mm - be sure you lift it evenly. In most cases
the ends of the gold fingers on the edge connector should be just
visible above the slot.

I have no idea what this slotket is called, but I do know that it is
FCPGA compliant and has its own voltage regulation.

I doubt it has it's own voltage regulation - you would not have needed
to set 1.8v to get the processor fan to spin if it did. What it has is
jumpers which allow you to override the processor's voltage request to
the motherboard.

Give me some suggestions guys!!!!!!

If the problem is not processor seating, try a brand name slot adapter.

HTH

P2B

 

[Paul]

I have an ASUS P2B Rev. 1.02, currently running a Pentium II 400Mhz
512cache CPU.

I have a Pentium III 550E CPU + a s370FC slotket with voltage
regulation and FSB dip switch.

I have set the voltages to 1.8V and the FSB to AUTO (the only options
are AUTO/133)

This is my system config right now:

Pentium II 400Mhz, 256Mb RAM (2 x 128 PC100)
nVidia Gforce2
WD 20Gb 7200 2mb Drive
44xmax CD rom
Sound Card generic PCI.

the pentium 550E is a 100Mhz FSB chip, so I know this should be
working. When I installed the slotket with the CPU&heatsink-fan and
powerup the computer, there is nothing on the screen, and the screen
says, NO SIGNAL.

the fan however is running, so I know the voltage setting is correct
(before at 1.6V, the fan didn't even run!!)...

There is one more thing I noticed, when I inserted the slotket in the
slot, it was a little wobbely since I don't have the retention
mechanism on it, but still I think it was a secure fit.

I have no idea what this slotket is called, but I do know that it is
FCPGA compliant and has its own voltage regulation.

Give me some suggestions guys!!!!!!

When I experimented with my P2B-S, the black screen thing happens
when the VID jumpers/switches are set to a voltage less than 1.8 volts.
If you are using Asus slockets, be aware there are several different
models, and some genius at Asus reversed the numbering of the VID
switches between models. Therefore, if you grab the wrong manual
or instruction sheet for an Asus slocket, you can end up setting the
VID switches to something inappropriate. One poster on this group
managed to fry a processor due to this reversal of switch settings.

So, if the system is otherwise functional with the original processor,
try verifying your VID setting again. Since the VID signals travel
to the slocket edge card pins, you could even go so far as to probe
the VID signals with an ohmmeter, to determine whether the switches
are setting the signals to a logic 0 or 1. By doing this, you can be
absolutely certain as to what the switches/jumpers are doing and what
voltage the slocket will request when it is plugged in.

Setting the switches for 1.8 volts would be VID4 thru VID0 = 00101.
In this case VID4, VID3, and VID1 are grounded. While I could have
grabbed a Pentium data sheet, this voltage regulator datasheet has
the table of values as well.

http://www.intersil.com/data/FN/FN4/FN4567/FN4567.pdf (pg.7)

For the pinout of the slocket edge card (type SC242) I use this doc:
http://www.intel.com/design/PentiumIII/designgd/24518103.pdf (pg.6)

VID4..VID0 pins are A121, B119, A119, A120, B120. A ground pin for the
ohmmeter is available on pin A118.

Another thing to watch for, is what kinds of processors your slocket
supports. Some slockets have a single jumper that changes how a
couple of pins on the processor are set. (Wish I could remember what
all the options for this are )

For more info, consult Roland's web page at:
http://homepage.hispeed.ch/rscheidegger/p2b_procupgrade_faq.html

HTH,
Paul

 

[P2B]

When I experimented with my P2B-S, the black screen thing happens
when the VID jumpers/switches are set to a voltage less than 1.8 volts.
If you are using Asus slockets, be aware there are several different
models, and some genius at Asus reversed the numbering of the VID
switches between models. Therefore, if you grab the wrong manual
or instruction sheet for an Asus slocket, you can end up setting the
VID switches to something inappropriate. One poster on this group
managed to fry a processor due to this reversal of switch settings.

If the VID request is lower than the board can supply, the visible
symptom is the CPU fan 'twitching' at power up - it will not spin as the
OP's does. OTOH if he was tricked into setting an excessively high VID
request, the processor is probably toast.

 

[P2B]

I have an ASUS P2B Rev. 1.02, currently running a Pentium II 400Mhz
512cache CPU.

I have a Pentium III 550E CPU + a s370FC slotket with voltage
regulation and FSB dip switch.

I have set the voltages to 1.8V and the FSB to AUTO (the only options
are AUTO/133)

This is my system config right now:

Pentium II 400Mhz, 256Mb RAM (2 x 128 PC100)
nVidia Gforce2
WD 20Gb 7200 2mb Drive
44xmax CD rom
Sound Card generic PCI.

the pentium 550E is a 100Mhz FSB chip, so I know this should be
working. When I installed the slotket with the CPU&heatsink-fan and
powerup the computer, there is nothing on the screen, and the screen
says, NO SIGNAL.

the fan however is running, so I know the voltage setting is correct
(before at 1.6V, the fan didn't even run!!)...

There is one more thing I noticed, when I inserted the slotket in the
slot, it was a little wobbely since I don't have the retention
mechanism on it, but still I think it was a secure fit.

I have no idea what this slotket is called, but I do know that it is
FCPGA compliant and has its own voltage regulation.

Give me some suggestions guys!!!!!!

Another thought.... according to the Asus site, the P3-550 processor is
supported from BIOS version 1008 on, *but* the 550E requires 1013.006 or
later. What BIOS are you running?

 

[nikey22]

If the VID request is lower than the board can supply, the visible
symptom is the CPU fan 'twitching' at power up - it will not spin as the
OP's does. OTOH if he was tricked into setting an excessively high VID
request, the processor is probably toast.

Hi P2b, thank you for your expert opinion, I'm glad you're around. I
have tried reseating the board on several occasions and I just can't
seem to get it to POST. I am begining to think the s370FC card which
has on its back this sticker "HA-FPGA-ADAPTOR" doesn't work with
pentium III but probably only celerons. Another possibility is that I
have read some reports that older P2B boards like mine (rev 1.02.)
actually require the correct multiplier setting, so far I've only been
using the original 4.0x since I had a pentium II.... I have not yet
tried to boot with a 5.5x configuration. I suppose it is worth a shot,
how about shorting the CMOS? is there anyway the motherboard is still
remembering that it belonged to a Pentium II when I put in the
slotket?.... IF all this fails, I will get an ASUS 370-DL. Enough with
these rediculous no-names.

Thanks.

 

[P2B]

Hi P2b, thank you for your expert opinion, I'm glad you're around. I
have tried reseating the board on several occasions and I just can't
seem to get it to POST. I am begining to think the s370FC card which
has on its back this sticker "HA-FPGA-ADAPTOR" doesn't work with
pentium III but probably only celerons. Another possibility is that I
have read some reports that older P2B boards like mine (rev 1.02.)
actually require the correct multiplier setting, so far I've only been
using the original 4.0x since I had a pentium II.... I have not yet
tried to boot with a 5.5x configuration. I suppose it is worth a shot,
how about shorting the CMOS? is there anyway the motherboard is still
remembering that it belonged to a Pentium II when I put in the
slotket?.... IF all this fails, I will get an ASUS 370-DL. Enough with
these rediculous no-names.

Thanks.

I posted to the thread earlier this evening, but it hasn't shown up - my
news service sucks lately - maybe this one will do better.

According to the Asus site, the P2B supports P3 processors since BIOS
1008, but P3E processors are not supported until BIOS 1013.006 or later.

If you are not running the latest 1014.003 BIOS, I suggest installing
that as your next step. Get it here:

ftp://ftp.asuscom.de/pub/ASUSCOM/BIOS/Slot_I/INTEL_Chipset/i440BX/P2B/with_Hardwaremonitor/1014__03.zip

(I'm assuming your P2B is the retail version with voltage and
temperature monitoring etc)

I've never heard of a P2B caring how the multiplier jumpers are set when
a locked CPU is installed, so I'd be *really* surprised if that makes
any difference. If your CPU won't run with the latest BIOS, then an
S370-DL would be the only thing left to try.

HTH

P2B

 

[nikey22]

Yes, I have the latest version of the BIOS 1014.003beta. Theoretically
this BIOS should be enough to support a tualatin core CPU if I wanted.
Here is my question, let us assume that the slotket is not 'seated'
correctly on the board, if this indeed is the case, the motherboard
should give me some clue to this via the beep codes, shouldn't it? I
am away from my computer at the moment, but I will try to turn on the
computer without a CPU on it at all and see what the motherboard does.
I will pay attention to beeps, lights and video signals, hard drive
signals, etc etc..... (in the meantime, I have purchased a Abit
slotket III just incase this is the culprit).

memory wise, I have not indicated this before, but basically, I have
the standard 128Mb pc100, two chips...

I'll keep you all posted.

 

[P2B]

Yes, I have the latest version of the BIOS 1014.003beta. Theoretically
this BIOS should be enough to support a tualatin core CPU if I wanted.
Here is my question, let us assume that the slotket is not 'seated'
correctly on the board, if this indeed is the case, the motherboard
should give me some clue to this via the beep codes, shouldn't it? I

In theory it could - the Winbond hardware monitoring chip on the
motherboard reads the voltage request (VID) from the processor, and is
capable of beeping the speaker if the VID code says there's no CPU, but
this is not implemented on the P2B - so a P2B will not beep at all
unless the BIOS can initialise the CPU, therefore powering up a P2B
without a processor won't tell you anything. The best way to begin
testing a problem P2B is with CPU only.

If the CPU fan spins when you power up a P2B, the CPU is getting Vcore
(which means the VID request was within the onboard regulator's
capabilities, and the regulator is working - if not the fan will just
'twitch'). If nothing else happens (no beeps), the problem is either
dead motherboard or unsupported, dead, or improperly seated CPU. The
next step is to try a known good supported CPU.

If it won't beep with a good CPU only, a POST diagnostic card and a DMM
are required because the board is dead. If it beeps, add ram and video
and take it from there.

In your case the board works with your original CPU, Asus says the BIOS
supports the new CPU, and assuming you tried my suggestion to pull the
adapter out of the slot a fraction, CPU seating does not seem to be the
problem - so either the new CPU is dead, or the slot adapter does not
work with that CPU and/or the P2B. Get an S370DL or a Slot-T

 

[nikey22]

Hi everyone, just to update for those looking to upgrade: all is
working now. It was the slotket after all. The rule to learn here.
Don't buy cheap slotkets and hope they will work. They won't.

I am now using an Abit Slotket !!! with a pentium III 550E processor
designed to run at 100Mhz FSB. It works flawlessly. I have been
running it for a week, all is well. I have now increased FSB to 103Mhz
and it is operating at 566Mhz no problems. I will slowly keep
increasing this as I test the computer out with all of its peripherals
in place.

Because I am using the newest BIOS 1014.003, I will be purchasing a
Pentium III 1100Mhz 100MhzFSB CPU soon (for cheap), and will be
running this at 133Mhz FSB. Theoretically, I should achieve 1.46Ghz
using PC-133 RAM.

This is a rare CPU actually, and there have been reports in the past
of problems with the 11x multiplier which I am hoping ASUS has long
since solved with their BIOS upgrades over the years.

If anyone has this configuration, lets us know if it works. Thanks.

 

[Roland Scheidegger]

Hi everyone, just to update for those looking to upgrade: all is
working now. It was the slotket after all. The rule to learn here.
Don't buy cheap slotkets and hope they will work. They won't.

I am now using an Abit Slotket !!! with a pentium III 550E processor
designed to run at 100Mhz FSB. It works flawlessly. I have been
running it for a week, all is well. I have now increased FSB to
103Mhz and it is operating at 566Mhz no problems. I will slowly keep
increasing this as I test the computer out with all of its
peripherals in place.

Because I am using the newest BIOS 1014.003, I will be purchasing a
Pentium III 1100Mhz 100MhzFSB CPU soon (for cheap), and will be
running this at 133Mhz FSB. Theoretically, I should achieve 1.46Ghz
using PC-133 RAM.

PIII coppermine 1100/100 cpus are not very likely to reach 133Mhz FSB.
112Mhz FSB should probably be no problem (if your pci cards can handle
it), but 133Mhz is really pushing it. Got LN2 cooling?

This is a rare CPU actually, and there have been reports in the past
of problems with the 11x multiplier which I am hoping ASUS has long
since solved with their BIOS upgrades over the years.

not that long actually, you indeed really need the latest 1014.003 beta
bios...

If anyone has this configuration, lets us know if it works. Thanks.

Roland

 

[BigBadger]

--
*****Replace 'NOSPAM' with 'btinternet' in the reply address*****

Hi everyone, just to update for those looking to upgrade: all is
working now. It was the slotket after all. The rule to learn here.
Don't buy cheap slotkets and hope they will work. They won't.

I am now using an Abit Slotket !!! with a pentium III 550E processor
designed to run at 100Mhz FSB. It works flawlessly. I have been
running it for a week, all is well. I have now increased FSB to 103Mhz
and it is operating at 566Mhz no problems. I will slowly keep
increasing this as I test the computer out with all of its peripherals
in place.

Because I am using the newest BIOS 1014.003, I will be purchasing a
Pentium III 1100Mhz 100MhzFSB CPU soon (for cheap), and will be
running this at 133Mhz FSB. Theoretically, I should achieve 1.46Ghz
using PC-133 RAM.

Make sure this is not one of the Tualatin Celeron 1100's...because they wont
work on a standard Slotket...You would need a Slot-T adapter from
www.upgradeware.com ...The good news about the Tualatins is that they will
reach 1.46GHz or more.

 

[P2B]

Hi everyone, just to update for those looking to upgrade: all is
working now. It was the slotket after all. The rule to learn here.
Don't buy cheap slotkets and hope they will work. They won't.

I am now using an Abit Slotket !!! with a pentium III 550E processor
designed to run at 100Mhz FSB. It works flawlessly. I have been
running it for a week, all is well. I have now increased FSB to 103Mhz
and it is operating at 566Mhz no problems. I will slowly keep
increasing this as I test the computer out with all of its peripherals
in place.

Because I am using the newest BIOS 1014.003, I will be purchasing a
Pentium III 1100Mhz 100MhzFSB CPU soon (for cheap), and will be
running this at 133Mhz FSB. Theoretically, I should achieve 1.46Ghz
using PC-133 RAM.

Highly unlikely - Coppermine PIII processors rarely achieve more than
1300Mhz.

I would advise you to check the CPU database at overclockers.com before
purchasing any 100Mhz FSB Coppermine processor with the intention of
running it at 133Mhz - you will find very few success stories.

 

[P2B]

Make sure this is not one of the Tualatin Celeron 1100's...because they wont
work on a standard Slotket...You would need a Slot-T adapter from
www.upgradeware.com ...The good news about the Tualatins is that they will
reach 1.46GHz or more.

Slot-T is not an option for running a Tualatin on a P2B rev 1.02 because
the lowest Vcore the board can supply is 1.8v, much too high for a Tualatin.

The options are 1) change the voltage regulator chip (then a Slot-T can
be used), or 2) use a Powerleap PL-iP3/T adapter (has an onboard voltage
regulator).

P2B

 

[Bob]

Slot-T is not an option for running a Tualatin on a P2B rev 1.02 because
the lowest Vcore the board can supply is 1.8v, much too high for a Tualatin.

The options are 1) change the voltage regulator chip (then a Slot-T can
be used), or 2) use a Powerleap PL-iP3/T adapter (has an onboard voltage
regulator).

P2B

P2B:

Is this an issue because of the low (1.02) rev ? Would later boards
have this issue ?

 

[P2B]

P2B:

Is this an issue because of the low (1.02) rev ? Would later boards
have this issue ?

I have seen the odd P2B rev 1.10 with a Tualatin capable voltage
regulator, but only rev 1.12 and up are guaranteed to support less than
1.8v Vcore.

 

[Barry Watzman]

Asus P2B revision 1.12 boards, and almost all 1.10 boards, have the
"BCB" voltage regulator that can go down to about 1.4 volts. Earlier
boards could only go down to 1.8 volts. Note, although it's an
overvoltage, 1.8 volts is ok for "Coppermine" core chips that were
supposed to run at 1.5 to 1.75 volts, and the usual approach is to use a
slocket with VID jumpers and just set them to force 1.8 volts.

However, 1.8 volts might be WAY too much for a Tualatin, depending on
what it was supposed to run at.

 

[Barry Watzman]

Your answer is correct, but MOST of the revision 1.10 P2B's have the
later voltage regulator, the one with the "BCB" suffix.