Need help upgrading an ASUS P2B

[Sporko]

I currently have a PII-400, 128MB ram, on an ASUS P2B board. I wanted to upgrade to a coppermine 700 but the ASUS site says my board needs to be pcb rev. 1.12. My board is rev. 1.10.

Based on this my only upgrade choice appears to be a Katmai 600. I'm not convinced this will give me enough performance increase for the money.

Should I chuck my board and get a Duron?

 

[Eug]

Asus P2B, revision 1.10, BIOS reflashed to 1012.

Celeron (Coppermine) 533A currently running at 920 MHz, 1.9 V.

I can set 1.5, 1.6, 1.7, 1.8, 1.9 properly, but not 1.55, 1.65, 1.75, 1.85. (Usually it boots at the next highest voltage for these x.x5 settings - 1.75 = 1.8, but a couple of times it just refused to boot.)

So, get yourself an MSI MS-6905 Master slocket (with voltage jumpers), a Celeron II 533A/566 (or possibly PIII 700E, depending on your memory and video) with good cooling and overclock the crap out of it.

 

[zuffy]

check out http://www.ctechnet.com/hardware/asus.htm

 

[Sporko]

Thanks for the link zuffy. According to these guys I CAN use a coppermine flipchip. It looks like they say my board will only go as low as 1.8V. Now am I on the right track in that the slocket adaptor is what actually lowers the voltage from the regular 2.0V? Are there adaptors available that will reduce the votage further to 1.65 or would 1.8 be a limit fixed by my board?

Eug, please elaborate on what you meant by: "or possibly PIII 700E, depending on your memory and video"

Thank-you.

 

[AndyHui]

The limit of 1.80 volts is fixed by the board.....it's not able to supply a lower voltage.

 

[Scaramouche]

Some of the later rev 1.10 boards have voltage regulators that allow voltage of 1.6v. These regulators have 'B' as the first letter (e.g. 6004BCB).

Have one running a Celeron 566 at 850 at 1.65v with an MSI slotket.

 

[zuffy]

Not sure if my P2B-S is providing the 1.8v or less but my system is running rock solid @ 784Mhz. I have the Asus P2B-S revision 1.04, BIOS 1012, using a MSI MS-6905 slotket for my Coppermine 700MHz.

 

[Eug]

"Eug, please elaborate on what you meant by: "or possibly PIII 700E, depending on your memory and video"

If you have memory that can handle a 133 MHz bus and a video card that can handle 89 MHz, then you may be able to hit 933 with a cB0 700E. Most vid cards can handle 83 and some PC-100 CAS 2 memory can handle 124 MHz at CAS 3, so that would be an option too, since a PIII 868 is pretty damn fast. Also, the PCI bus wouldn't be a problem because there is an option to run it at 31 MHz instead of 41.3 with the FSB at 124. By the way, a 700E at stock speed is probably about the same speed as a Celeron 850, so even if all you can get is 784 MHz out of a 700E that's still pretty damn good.


"The limit of 1.80 volts is fixed by the board.....it's not able to supply a lower voltage."
"Some of the later rev 1.10 boards have voltage regulators that allow voltage of 1.6v."

My 1.10 goes down to 1.5 V for sure, because the only times I've ever run this Celeron 533A at stock speed was at 1.5 and 1.6 V.


"Have one running a Celeron 566 at 850 at 1.65v with an MSI slotket."

If you're still talking rev. 1.10 that is bizarro. My 1.10 usually will boot at 1.7 V if I set it to 1.65, but a couple of times it just refused to boot. (Same thing at 1.75 --> 1.8.)

 

[Sporko]

Great information everyone.

Can anyone tell me how to identify the voltage regulator as described by saramouche above. Like where do I find it and what it looks like.

I think I would be happy to get a 700E working at stock speed for now. I doubt my ATI Rage Fury will put up with much overclocking just because it is pretty crappy in general. My system was put together by a local shop and I also would be surprised if my memory was first class.

If I can ID the voltage regulator as being ok I'll be going ahead with a PIII-700E.

 

[GeoffS]

The voltage regulator is a small chip right beside the ATX power connector. It should read something like HIP6019BCB (this one can handle voltages lower than 1.8v). There is a lot of information in the alt.comp.periphs.mainboard.asus UseNet forum HERE. Just do a search on P2B-F.

BTW- my board is a rev 1.0. I've seen on UseNet people o/c-ing a C566 to 850 at 1.65v.

 

[Sporko]

Thanks Geoffs,

I found the chip and it is labelled HIP6019BCB. So I should be OK for voltages below 1.8 right?

So, if I buy a 700E and an ASUS slocket adaptor and just want to run at stock speed am I good to go?

 

[KarayaOne]

Sporko~ I told you this would work. Hehehe. Now go get that Coppermine and see what EAW looks like at 1600x1200.

I used an IWill slocket. But there are many to choose from. There are jumpers on the slocket that allow for "auto" and "manual" voltage settings. If you're going to run you 700E@700, then the auto setting is fine. If you choose to crank up the bus, it's a simple matter to change a few jumpers and run any voltage you want. Provided your regulator can supply it.

KarayaOne aka DBond

 

[htyei]

Thats odd, i just tried a 533a celeron with an iwill slocket II yesterday on my friends asus p2. wouldnt post no matter what even at stock speed.

Had to return the whole bundle

Oh well, obviously it works for other people.

 

[Eug]

Thats odd, i just tried a 533a celeron with an iwill slocket II yesterday on my friends asus p2. wouldnt post no matter what even at stock speed.

Had to return the whole bundle

Arrrggghhhh!!!! I repeat... To get these to work you have to do two things:
A) Reflash the BIOS the latest version.
B) Set the voltage to 1.8

If that still doesn't work, then you may have a problem, but the vast majority should work.

Once you get that working, then overclocking is the next step.