WHERE + GROUP BY + HAVING to SELECT only the rows where I have different column ID's

Question

I am trying to select only the rows where I have different columns of the PartnerID column. I have 1 simple table which contains 3 main columns - ID, Acct and PartnerID. I am trying to GROUP BY Acct and then check if this Acct ID have different Partners ID in it. For example if I have those rows:

ID    Acct    PartnerID    OperType
3     5       4            2
4     5       3            2
5     6       6            2
6     6       6            2

I want to be able to select the Acct with ID 5 as it contains different Partners ID's, but not selecting the Acct 6 as it has the same Partners ID.

So I tried this code, but It is not working as I am not selecting only the Acct's I need:

SELECT Acct
FROM `Operations`
WHERE OperType = 2
GROUP BY Acct, PartnerID
ORDER BY `Acct`  ASC

I also tried this, but I am geting empty result:

SELECT Acct
FROM `Operations`
WHERE OperType = 2
GROUP BY Acct, PartnerID
HAVING COUNT(DISTINCT PartnerID) > 1
ORDER BY `Acct`  ASC

Answer 1

Thanks to @Jonathan Fite the answer is

SELECT Acct
FROM `Operations`
WHERE OperType = 2
GROUP BY Acct
HAVING COUNT(DISTINCT PartnerID) > 1
ORDER BY `Acct`  ASC