Abit IT7-MAX2 rev 1

[FujiMan]

I have a Abit IT-Max2 rev 1 board that posts showing the wrong cpu installed. 2.4ghz shows as a 1.8ghz. 3ghz shows up as 1.5ghz.

Here is a list of caps near cpu:
7 - Rubycon mbz 3300uf 6.3v
1 - Lelon 470uf 16v
3 - ??? (silver cans) 1200uf 16v

The silver cans only have a logo which looks like an unconnected oval.

These are all over the board:
8 - Teapo 220hf 16v
9 - Teapo 1500uf 6.3

None of them are visibly defective (no open vent, leakage, etc).

I will try to pull board and test the power supply under load check vdc.
Will check CPU as well on another board to see if it is the culprit.

Any hints? suggestions? I'm willing to have it repaired if needed.
Thanks.

[pfrcom]

Re: Abit IT7-MAX2 rev 1

Which board is it ? - heading says Abit IT7-Max2, and post #1 says Abit IT-Max2

Quick Google shows IT7-Max2 is based on i845PE chipset, which will limit it to processors running 400mhz Front Side Bus (FSB) and possibly 533mhz, although the Rev.1 may mean 400 only

A 2.4ghz showing as 1.8ghz tends to confirm that - namely 18 multiplier with 100mhz FSB (quad pumped to make it 400mhz), instead of 18 with 133mhz

And 3ghz is probably just not supported by i845PE

[pfrcom]

Re: Abit IT7-MAX2 rev 1

Unable to edit my original post #2, although I thought I was within 2 hours, anyway ....

A 3ghz processor will probably be 200mhz FSB, so showing as 1.5ghz will be 15 multiplier with 100mhz FSB, instead of 15 with 200mhz

[RJARRRPCGP]

Re: Abit IT7-MAX2 rev 1

Which board is it ? - heading says Abit IT7-Max2, and post #1 says Abit IT-Max2

Quick Google shows IT7-Max2 is based on i845PE chipset, which will limit it to processors running 400mhz Front Side Bus (FSB) and possibly 533mhz, although the Rev.1 may mean 400 only

A 2.4ghz showing as 1.8ghz tends to confirm that - namely 18 multiplier with 100mhz FSB (quad pumped to make it 400mhz), instead of 18 with 133mhz

And 3ghz is probably just not supported by i845PE

133 Mhz should work, especially, if it's like the MSI's version. (845E Max)

100 Mhz is usually for Celerons. (Except for Pentium 4 2.2)
(Pentium 4 2.2 was made for 100 Mhz FSB.) (And likely the same with the 2.0s)

[PCBONEZ]

Re: Abit IT7-MAX2 rev 1

Wrong RAM can cause it to kick down too.