Is this a BP80502166?

[RM68]

Hi,
This looks like an intel pentium overdrive, but the markings on the inside suggest that it is an boxed version of a Pentium 166 MHz.
Is it the overdrive or is it a strange boxed version?

[Cpuswe]

Its a ordinary boxed pentium with a fan from a Pentium overdrive.

If you look at these Pentium overdrives they have the same connectors and fittings as yours.

http://www.recode.se/cpulibrary/Intel/Pentium/Overdrive/library.html


Edit:

After a second look i think i have to take that back. That is no ordinary boxed P166.

The heatsink is like those on a overdrive and there are capacitors under it which no boxed pentium has. The "166" should be in the lower right corner and there should be a "BP80502166" in the bottom.

Strange chip...

Edit2: If it is for sale/trade, email me.

[RM68]

I agree with your second look. The fan of an overdrive does not fit a normal boxed processor, because the latter does not get its power from the chip.

[Cpuswe]

It could be a remarked/fake Pentium 166 Overdrive (PODP3V166). I have looked around on several images and the PODP3V166 has 166 in the top right corner, the black cap at the bottom and the overdriver heatsink.

[RM68]

That would be an explanation. I don't know what the origin is. I bought the chip from a seller in the UK.
Are there more known cases of remarked Pentium Overdrives?
Besides, what is the point of remarking processors?

[Cpuswe]

In this case perhaps someone earned some money. Bought cheaper overdrives and remarked them as newer Pentiums. If you made $20-30 on each cpu and did it to 1000 pcs, that is a real profit.

(This is just speculation, im not sure if the overdrive came first or not and then where cheaper.)

I have not heard of any Overdive remarks.

[debs3759]

Have you got a system you can test it in? If it's an overdrice processor, the CPUID code will start with 15xx, if not then it will start with 05xx. SU072 ahs CPUID of 052C....

[gshv]

I don't think it's fake. It should be very difficult to remark the processor speed in the top right corner of the chip. Laser markings on fake processors are either sanded or painted over. These techniques will be noticable on overdrive processors, as it's not possible to sand, or paint the whole surface of the chip.

It's possible Intel had very high demand for boxed processors, or low demand for overdrive processors so they marked some of overdrive processors as boxed processors.

Gennadiy

[Cpuswe]

[gshv]

I suspect that overdrive 166 processors were more expensive than boxed Pentium 166 processors, so there was much sense to remark them.

Gennadiy

[Cpuswe]

[RM68]

Cpuswe: of course you are allowed to use the picture. I made them myself, so they aren't copyrighted. Nice site by the way.
But I am sorry, this cpu isn't for sale. I am a collector myself.

debs3759: I will test it in a mainboard. It might take a few days because I have to build a system from boxes with old stuff... I will publish the CPUID here.

[Cpuswe]

[sammyc]

Hey - now that is cool.

Here is my SU072

My guessing is that it is not an SU072 CPU underneath, it is infact an "Intel Overdrive" With the PODP5V fan on top.

The heatsink is definately the wrong one for the chip.

[pinkie]

I know 2 collectors from China have a cpu like this.
Ones lable of fan printing "over drive", another printing "Pentium procesor".
They said the CPUs are not fake.


How about my A80503150?
http://www.cpu-world.com/forum/viewtopic.php?t=3231

I will test it and post the result here.