p3 1100? or p3 1130?

[lemkepf]

I have an old Compaq 5080us with an 800mhz celeron inside. I'm looking to upgrade the ram and the CPU for my wife to use. I talked to compaq about the PC and they told me that the motherboard could take up to a p3 1100mhz cpu... problem, where can i find an 1100mhz cpu? Do you think they mean 1130mhz? The only reason i ask is because there is a 30 dollar price difference between the 2.
What do you think? go for the cheaper 1.13 and hope it works? or play it safe and pay more for the 1ghz?
Thanks for all the help!
Paul

 

[Guest]

Im not sure about this one somebody probly gonna correct me if im wrong(aka CrashMan).
I would think that 1100mhz PIII has a 100FSB that would be the highest clocked PIII with a 100mhz front side bus.

Now the 1130mhz is surely a 133mhz FSB variant.

Your motherboard probly doesnt support 133FSB that why the guy told you to buy the 1.1ghz chip.

Chances are the 1.13 wont work on your mobo or it will be underclocked dont know.

Asus P4P800DX, P4C 2.6ghz@3.25ghz, 2X512 OCZ PC4000 3-3-3-8, Leadtek FX5900 w/ FX5950U bios@500/1000, 2X30gig Raid0

 

[lemkepf]

From what i've been reading:
http://www.thehistoryofcomputers.com/items/3462287120.html

Your probably right. I was thinking of getting the 1.13 anyways just because it's 30 bucks cheaper. And if it's underclocked to 1ghz that's fine. Do you think that would be a problem? I also figure if it doesn't work, i can always return it.
Thanks for your help!!
Paul

 

[Guest]

Ok so the 1130= 133FSB X 8.5 Multiplier. If it underclocks it will run at 8.5 X 100 =850.
Now you can run the memory Asynchronously with a 4/5 divider your cpu will run a 1130 and the ram at 100mhz.

Depending on what ram your using you could OC it back...
It depends on you motherboard too but if you can overclock the FSB to something like 120mhz you would get a 1ghz+ chip...


Asus P4P800DX, P4C 2.6ghz@3.25ghz, 2X512 OCZ PC4000 3-3-3-8, Leadtek FX5900 w/ FX5950U bios@500/1000, 2X30gig Raid0

 

[Crashman]

First of all, Compaq is on crack. Now that we got THAT out of the way:

There ARE NO PIII 1130MHz processors. There's a 1.13, but that's a rounded number, it's 1.133333333....GHz. As in 1133MHz.

Now, they didn't even tell you what CPU's it really supports. Fact is, they don't know. Intel produced some 1100MHz "PIII's" for OEM's, but you wont' find any. Worse part is, a 100MHz bus PIII looks an awefull lot like a Tualatin Celeron.

Now, late Coppermine boards were supposed to be made to support the ORIGINAL PIII 1.13 (ie, 1133), but that CPU was RECALLED by Intel, there ARE NONE left. They were only distributed to OEM's because they were recalled before retail boxes were released.

So then the PIII 1.13 was replaced around a year later. The NEW 1133 was also available as a 1.20GHz version. Any board that supported the NEW 1133 would also support the 1200.

At the same time, there were NEW Celerons introduced at 1.0, 1.1, 1.2, 1.3, and 1.4GHz. Later a PIII 1GHz on the new core was introduced.

There were several differences between the old core and the new core. The old core, Coppermine, was .18 micron and ran at voltages from 1.50 (for the slowest ones) to 1.75v. The new core, Tualatin, was .13 micron and ran at 1.425-1.475v. Intel decided OLD boards COULDN'T support the NEW core, so they changed a couple pins so that the new CPU wouldn't boot on the old board.

So that's where you stand. The information Compaq gave you is useless. It tells you nothing about what processors your system really supports! You don't even know, given that information, whether or not it supports Tualatin cores.

The good news is, if it supports Tualatin cores, it supports up to the Celeron 1400. The other good news is, even if it doesn't support Tualatins, it probably WILL if you buy the $8 Tualatin adapter from Compgeeks.

More good news, if you get a Tualatin adapter, I have the settings here to set it to higher voltage and higher bus speeds. So you could take a Tualatin Celeron 1100, and set it to 1.65v and 133MHz bus, making it run 1466MHz. That would overcome the major handicap of Tualatin Celerons, the slow bus speed.

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