if it is an open tender and the procurement contract has been signed, the configuration change will be mentioned after entering the supply stage. It is reasonable that the supplier who won the bid (or clinched a deal) has already prepared the goods or is ready to deliver them, which will bear the liability for breach of contract.
The purchase amount involved in the processor change has changed greatly, and the purchase content has changed substantially. It is impossible for the original supplier who won the bid (or clinched a deal) to continue to undertake the supply task through negotiation, and it does not meet the conditions for signing a supplementary contract (increasing the purchase amount within 1% of the original bid/clinched a deal). This is illegal in the government procurement procedure, otherwise other suppliers will complain, because the original supplier who won the bid may not be able to organize the purchase according to the new purchase content. The bid should be scrapped and the tender should be reorganized.