Dell Inc founder Michael Dell and his private equity partner Silver Lake would not raise their $24.4 billion bid for the world’s No. 3 PC maker even if a vote on their offer is delayed, two people familiar with the matter said on Tuesday.

The outcome of a shareholder vote scheduled for Thursday on the offer is too close to call. Dell may decide to delay the vote to gain time to win support for the deal, a person familiar with the matter said earlier on Tuesday.

With a nearly 16 percent stake in Dell and ties going back three decades to the creation of the company out of his college dorm room, Michael Dell is seen as having much more at stake in the deal going through than Silver Lake, a financial investor that often walks away from deals.

During late-stage negations leading up to the February 5 buyout agreement, Michael Dell had to subsidize the returns of Silver Lake, which declined to raise its contribution further. The Dell founder agreed to roll over his shares at $13.36 each versus the $13.65 offered to shareholders.

But the two people with knowledge of Michael Dell’s and Silver Lake’s plans said on Tuesday that any decision to increase the offer now would be taken jointly and that both parties have decided there will not be any bump in their $13.65-per-share offer.

Activist investor Carl Icahn has spearheaded opposition to the bid and presented a proposal of his own with Southeastern Asset Management Inc, although this will not go to a vote on Thursday.

Dell’s special board committee will likely make a decision by Thursday morning, based on whether enough votes have been cast to indicate the buyout would be blocked. Dell’s board has set up the special committee to independently assess the best option for shareholders, without influence from Michael Dell, who is the company’s chairman and chief executive officer.