以下のコードを試してください
-(IBAction)setData1:(id)sender
{
UIViewController *popoverContent=[[UIViewController alloc] init];
UITableView *tableView1=[[UITableView alloc] initWithFrame:CGRectMake(265, 680, 0, 0) style:UITableViewStylePlain];
UIView *popoverView=[[UIView alloc] initWithFrame:CGRectMake(0, 0, 500, 300)];
popoverView.backgroundColor=[UIColor whiteColor];
popoverContent.view=popoverView;
popoverContent.contentSizeForViewInPopover=CGSizeMake(200, 420);
popoverContent.view=tableView1; //Use this if you like to add a tableView in popover
tableView1.delegate=self;
tableView1.dataSource=self;
self.popoverController=[[UIPopoverController alloc] initWithContentViewController:popoverContent];
[self.popoverController presentPopoverFromRect:CGRectMake(400, 675, 1000, 1000) inView:self.view permittedArrowDirections:UIPopoverArrowDirectionDown animated:YES];
}