EXECUTION VERSION



                               SECOND AMENDMENT TO
                   THIRD AMENDED AND RESTATED CREDIT AGREEMENT

         THIS SECOND  AMENDMENT TO THIRD AMENDED AND RESTATED  CREDIT  AGREEMENT
(this "Amendment"), dated as of July 21, 1999, is entered into by and among:

                  (1)  BELL   MICROPRODUCTS   INC.,  a  California   corporation
         ("Borrower");

                  (2) Each of the financial institutions listed in Schedule I to
         the  Restated  Credit  Agreement  referred  to in  Recital A below (the
         "Banks");

                  (3) CALIFORNIA BANK & TRUST, a California banking corporation,
         as   administrative   agent   for  the   Banks   (in   such   capacity,
         "Administrative Agent"); and

                  (4)  UNION  BANK  OF  CALIFORNIA,  N.A.,  a  national  banking
         association  ("UBOC"),  as  collateral  agent  for the  Banks  (in such
         capacity, "Collateral Agent").


                                    RECITALS

         A. Borrower,  the Banks,  Administrative Agent and Collateral Agent are
parties to a Third Amended and Restated  Credit  Agreement  dated as of November
12,  1998,  as amended by that  certain  First  Amendment  to Third  Amended and
Restated Credit  Agreement  dated as of May 13, 1999 (as amended,  the "Restated
Credit Agreement").

         B. Borrower has requested  Administrative  Agent,  Collateral Agent and
the Banks to amend the Restated Credit Agreement in certain respects.

         C. Borrower,  the Banks,  Administrative Agent and Collateral Agent are
willing so to amend the Restated Credit  Agreement upon the terms and subject to
the conditions set forth below.

                                    AGREEMENT

         NOW,  THEREFORE,  in  consideration of the above recitals and for other
good and  valuable  consideration,  the receipt and adequacy of which are hereby
acknowledged,  Borrower,  the Banks,  Administrative  Agent and Collateral Agent
hereby agree as follows:

         1. Definitions, Interpretation. All capitalized terms defined above and
elsewhere in this Amendment shall be used herein as so defined. Unless otherwise
defined  herein,  all  other  capitalized  terms  used  herein  shall  have  the
respective  meanings given to those terms in the Restated Credit  Agreement,  as
amended by this Amendment.  The rules of construction  set forth in Section I of
the Restated Credit  Agreement  shall, to the extent not  inconsistent  with the
terms of this Amendment,  apply to this Amendment and are hereby incorporated by
reference.




         2. Amendment to Credit  Agreement.  Subject to the conditions set forth
in  paragraph  4 below,  the  Restated  Credit  Agreement  is hereby  amended as
follows:

                  (a)  Subparagraph  2.01(a) is hereby  amended by changing  the
         reference to "May 30, 2000" set forth therein to "July 30, 2000".

                  (b) Clause (vi) of  Subparagraph  5.02(m) is hereby amended to
         read in its entirety as follows:

                           (vi) Its  Interest  Coverage  Ratio (A) for the three
                  quarter  period  beginning  on April 1,  1998  and  ending  on
                  December  31,  1998 to be less than 2.00 to 1.00;  and (B) for
                  any consecutive four-quarter period thereafter to be less than
                  2:00 to 1:00;  provided,  however,  that  for the  consecutive
                  four-quarter  period  ending  on  June  30,  1999,  Borrower's
                  Interest  Coverage  Ratio shall not be less than 1.80 to 1.00;
                  or

         3.  Representations  and  Warranties.  Borrower  hereby  represents and
warrants to  Administrative  Agent,  Collateral Agent and the Banks that, on the
date of this  Amendment and after giving effect to the  amendments  set forth in
paragraph 2 above on the Effective  Date (as defined  below),  the following are
and shall be true and correct:

                  (a) The  representations and warranties set forth in Paragraph
         4.01 of the  Restated  Credit  Agreement  are true and  correct  in all
         material respects;

                  (b) No  Default  or  Event  of  Default  has  occurred  and is
         continuing; and

                  (c) Each of the Credit Documents is in full force and effect.

         4.  Effective  Date. The  amendments to the Restated  Credit  Agreement
effected  by  paragraph  2 above shall  become  effective  on July 21, 1999 (the
"Effective  Date"),  subject to receipt by the Banks,  Administrative  Agent and
Collateral  Agent on or prior to the Effective  Date of the  following,  each in
form and substance satisfactory to the Banks,  Administrative Agent,  Collateral
Agent and their respective counsel:

                  (a) This  Amendment  duly  executed  by  Borrower,  the Banks,
         Administrative Agent and Collateral Agent;

                  (b) A letter in the form of Attachment A hereto  appropriately
         completed,   dated  the  Effective  Date  and  duly  executed  by  each
         Guarantor;

                  (c) A nonrefundable amendment fee equal to Twenty Six Thousand
         Dollars ($26,000.00) to be shared equally among the Banks; and

                  (d) Such other evidence as  Administrative  Agent,  Collateral
         Agent or any Bank may reasonably  request to establish the accuracy and
         completeness of the  representations  and warranties and the compliance
         with the terms and conditions contained in this Amendment.


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         5. Effect of this  Amendment.  On and after the  Effective  Date,  each
reference in the Restated Credit Agreement and the other Credit Documents to the
Restated Credit  Agreement  shall mean the Restated Credit  Agreement as amended
hereby.  Except as specifically amended above, (a) the Restated Credit Agreement
and the other  Credit  Documents  shall  remain in full force and effect and are
hereby ratified and confirmed and (b) the execution,  delivery and effectiveness
of this Amendment shall not, except as expressly  provided herein,  operate as a
waiver of any  right,  power,  or remedy of the Banks,  Administrative  Agent or
Collateral  Agent,  nor  constitute  a waiver of any  provision  of the Restated
Credit Agreement or any other Credit Document.

         6.       Miscellaneous.

                  (a) Counterparts. This Amendment may be executed in any number
         of identical  counterparts,  any set of which signed by all the parties
         hereto shall be deemed to constitute a complete,  executed original for
         all purposes.

                  (b) Headings.  Headings in this Amendment are for  convenience
         of reference only and are not part of the substance hereof.

                  (c)  Governing  Law. This  Amendment  shall be governed by and
         construed  in  accordance  with  the laws of the  State  of  California
         without reference to conflicts of law rules.



                                       3


         IN  WITNESS  WHEREOF,  Borrower,  the Banks,  Administrative  Agent and
Collateral  Agent have  caused this  Amendment  to be executed as of the day and
year first above written.

BORROWER:                           BELL MICROPRODUCTS INC.


                                    By:__________________________________
                                       Name:
                                       Title:


                                    By:__________________________________
                                       Name:
                                       Title:


ADMINISTRATIVE AGENT:               CALIFORNIA BANK & TRUST,
                                    As Administrative Agent


                                    By:__________________________________
                                       Name:
                                       Title:


                                    By:__________________________________
                                       Name:
                                       Title:


COLLATERAL AGENT:                   UNION BANK OF CALIFORNIA, N.A.,
                                    As Collateral Agent


                                    By:__________________________________
                                       Name:
                                       Title:


                                    By:__________________________________
                                       Name:
                                       Title:


                                       4






BANKS:                              CALIFORNIA BANK& TRUST,
                                    As a Bank


                                    By:__________________________________
                                       Name:
                                       Title:


                                    By:__________________________________
                                       Name:
                                       Title:


                                    UNION BANK OF CALIFORNIA, N.A.,
                                    As a Bank


                                    By:__________________________________
                                       Name:
                                       Title:


                                    By:__________________________________
                                       Name:
                                       Title:


                                    SANWA BANK CALIFORNIA,
                                    As a Bank


                                    By:__________________________________
                                       Name:
                                       Title:


                                    COMERICA BANK - CALIFORNIA,
                                    As a Bank


                                    By:__________________________________
                                       Name:
                                       Title:

                                       5






                                    U.S. BANK NATIONAL ASSOCIATION,
                                    As a Bank


                                    By:__________________________________
                                       Name:
                                       Title:


                                    By:__________________________________
                                       Name:
                                       Title:


                                       6




                                  ATTACHMENT A

                        FORM OF GUARANTOR CONSENT LETTER


                                  July 21, 1999

TO:      ADMINISTRATIVE AGENT,
         As Administrative Agent for the Banks
         and the Agents under the Restated
         Credit Agreement referred to below

         1.       Reference is made to the following:

                  (a) The Third Amended and Restated  Credit  Agreement dated as
         of November  12, 1998,  among  Borrower,  the Banks and  Administrative
         Agent,  as amended by that certain First Amendment to Third Amended and
         Restated  Credit  Agreement  dated as of May 13, 1999 (as amended,  the
         "Restated Credit Agreement");

                  (b) [The Bell Canada  Guaranty,  dated as of November 12, 1998
         (the " Bell Canada Guaranty"),] [The Bell-Tenex  Guaranty,  dated as of
         November  20,  1998  (the  "Bell-Tenex  Guaranty"),]  executed  by  the
         undersigned  ("Guarantor")  in favor of the  Banks  and  Administrative
         Agent; and

                  (c) The Second  Amendment to Third Amended and Restated Credit
         Agreement,  dated as of July  21,  1999,  among  Borrower,  the  Banks,
         Administrative Agent and Collateral Agent (the "Second Amendment");

         2. Guarantor  hereby  confirms that it is a wholly-owned  subsidiary of
[Bell Microproducts Inc., a California  corporation] [Bell Microproducts  Canada
Inc.,  a  California  corporation  ("Bell  Canada")  and that  Bell  Canada is a
wholly-owned subsidiary of Bell Microproducts Inc., a California corporation].

         3. Guarantor hereby consents to the Second Amendment, including without
limitation,  the extension of the Revolving Loan Maturity Date from May 31, 2000
to July 31, 2000.  Guarantor expressly agrees that the Second Amendment shall in
no way affect or alter the rights,  duties,  or  obligations  of Guarantor,  the
Banks or  Administrative  Agent  under the [Bell  Canada  Guaranty]  [Bell-Tenex
Guaranty].

         4.  Pursuant  to the  [Bell  Canada  Guaranty]  [Bell-Tenex  Guaranty],
Guarantor  continues to guaranty the payment when due of, inter alia, all loans,
advances,  debts,  liabilities and  obligations,  however  arising,  owed by the
Borrower to any Agent or any Bank of every kind and  description now existing or
hereafter  arising  pursuant to the terms of the  Restated  Credit  Agreement as
amended by this Second Amendment or any of the other Credit Documents.

         5. [The Security Agreement,  dated as of November 20, 1998 between Bell
Microproducts  Canada - Tenex Data ULC and  Administrative  Agent (the "Security

                                      A-1




Agreement") and any other security granted to any Agent or any of the Banks from
time  to  time as  security  for the  obligations  of the  Guarantor  under  the
Bell-Tenex  Guaranty (in each case as such  security  may be amended,  modified,
restated, replaced,  supplemented,  acknowledged or confirmed from time to time)
remains  in full force and effect and  unamended,  and the  security  interests,
mortgages,  charges,  liens,  assignments,  transfers  and  pledges  granted  by
Guarantor in favor of any Agent and the Banks pursuant to the Security Agreement
and such other  documents (if any) continue to extend to all debts,  liabilities
and obligations,  present or future, direct or indirect, absolute or contingent,
matured or  unmatured,  at any time due or accruing  due, of Guarantor to any of
the Banks and any Agent arising  under,  in  connection  with or pursuant to the
Restated  Credit  Agreement,  the  other  Credit  Documents  and the  Bell-Tenex
Guaranty,  as  acknowledged  and  confirmed by this  Guarantor  Consent  Letter,
notwithstanding  the  amendment of the Restated  Credit  Agreement by the Second
Amendment.]

         6. From and after the date hereof, the term "Restated Credit Agreement"
as used in the  [Bell-Canada  Guaranty]  [Bell-Tenex  Guaranty]  shall  mean the
Restated Credit Agreement, as amended by the Second Amendment.

         7.  Guarantor's  consent to the Second Amendment shall not be construed
(i) to have been required by the terms of the [Bell Canada Guaranty] [Bell-Tenex
Guaranty] or any other  document,  instrument or agreement  relating  thereto or
(ii) to require the consent of Guarantor in connection with any future amendment
of the Restated Credit Agreement or any other Credit Document.

                                      A-2



         IN WITNESS  WHEREOF,  Guarantor  has executed  this  Guarantor  Consent
Letter as of the day and year first written above.


                                     [BELL/MICROPRODUCTS CANADA-TENEX DATA ULC]
                                     [BELL MICROPRODUCTS CANADA INC.]


                                     By: ____________________________
                                           Name:_______________________
                                           Title:________________________


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