WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

  

<ARTICLE> 5
<MULTIPLIER> 1,000
<RESTATED>

                                                                              
<PERIOD-TYPE>                          YEAR                   YEAR                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1995             DEC-31-1996             DEC-31-1997
<PERIOD-START>                             JAN-01-1995             JAN-01-1996             JAN-01-1997
<PERIOD-END>                               DEC-31-1995             DEC-31-1996             DEC-31-1997
<CASH>                                          15,157                  12,435                  12,041
<SECURITIES>                                         0                       0                  20,174
<RECEIVABLES>                                   21,858                  21,762                  38,272
<ALLOWANCES>                                     (316)                   (382)                   (587)
<INVENTORY>                                     20,943                  18,414                  32,616
<CURRENT-ASSETS>                                60,182                  55,456                 108,764
<PP&E>                                          13,026                  20,114                  25,386
<DEPRECIATION>                                 (4,844)                 (7,684)                 (9,821)
<TOTAL-ASSETS>                                  71,437                  71,514                 134,183
<CURRENT-LIABILITIES>                           18,954                  12,112                  32,747
<BONDS>                                              0                       0                       0
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                          0                       0                       0
<COMMON>                                            25                      25                      26
<OTHER-SE>                                      49,747                  56,333                  99,181
<TOTAL-LIABILITY-AND-EQUITY>                    71,437                  71,514                 134,183
<SALES>                                        129,361                 136,547                 183,247
<TOTAL-REVENUES>                               129,361                 136,547                 183,247
<CGS>                                           68,969                  87,576                 114,280
<TOTAL-COSTS>                                   68,969                  87,576                 114,280
<OTHER-EXPENSES>                                33,574                  38,791                  48,826
<LOSS-PROVISION>                                     0                       0                       0
<INTEREST-EXPENSE>                                 685                     320                     527
<INCOME-PRETAX>                                 26,313                  10,117                  19,909
<INCOME-TAX>                                    10,060                   4,030                   7,603
<INCOME-CONTINUING>                             16,253                   6,087                  12,306
<DISCONTINUED>                                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                    16,253                   6,087                  12,306
<EPS-BASIC>                                     0.72                    0.24                    0.48
<EPS-DILUTED>                                     0.69<F1>                0.23<F1>                0.46<F1>
<FN>
<F1>Restated per pooling merger of Advanced Energy and NOAH HOLDINGS, INC. in Q2 2000
</FN>