Bonjour,

Thanks for reply,
It seems that my miner is rich $!##* !    : )

Same hashrate without -l 8x64

ccminer.exe -l 8x64 -a cryptonight -o stratum+tcp://xmr.crypto-pool.fr:6666 -u 42XzhFyTXBC4UPLWgbrmgwTiXKCHYuaDS56gdmhHgFm3Fwjh6PE9cPtUwXTtYtpzMWFDtqStYdZ9HNQ cxoCgwYLX4oDJEkW -p x
     *** ccMiner for nVidia GPUs by Christian Buchner and Christian H. ***
                     This is version 1.1 (beta)
          based on pooler-cpuminer 2.3.2 (c) 2010 Jeff Garzik, 2012 pooler
          based on pooler-cpuminer extension for HVC from
               https://github.com/heavycoin/cpuminer-heavycoin
                        and
               http://hvc.1gh.com/
        Cuda additions Copyright 2014 Christian Buchner, Christian H.
          LTC donation address: LKS1WDKGED647msBQfLBHV3Ls8sveGncnm
          BTC donation address: 16hJF5mceSojnTD3ZTUDqdRhDyPJzoRakM
          YAC donation address: Y87sptDEcpLkLeAuex6qZioDbvy1qXZEj4
[2016-10-18 17:12:36] Using JSON-RPC 2.0
[2016-10-18 17:12:36] 1 miner threads started, using 'cryptonight' algorithm.
[2016-10-18 17:12:36] Starting Stratum on stratum+tcp://xmr.crypto-pool.fr:6666
[2016-10-18 17:12:36] GPU #0: GeForce GT 730, using 64 blocks of 8 threads
[2016-10-18 17:12:36] Pool set diff to 18000
[2016-10-18 17:12:36] Stratum detected new block
[2016-10-18 17:12:43] GPU #0: GeForce GT 730, 73.89 H/s
[2016-10-18 17:12:43] GPU #0: GeForce GT 730, 73.89 H/s
[2016-10-18 17:12:43] GPU #0: GeForce GT 730, 73.89 H/s
[2016-10-18 17:12:43] GPU #0: GeForce GT 730, 73.89 H/s
[2016-10-18 17:12:43] GPU #0: GeForce GT 730, 73.89 H/s
[2016-10-18 17:12:43] GPU #0: GeForce GT 730, 73.89 H/s
[2016-10-18 17:12:43] GPU #0: GeForce GT 730, 73.89 H/s
[2016-10-18 17:12:43] GPU #0: GeForce GT 730, 73.89 H/s
[2016-10-18 17:12:43] GPU #0: GeForce GT 730, 73.89 H/s
[2016-10-18 17:12:43] GPU #0: GeForce GT 730, 73.89 H/s
[2016-10-18 17:12:43] GPU #0: GeForce GT 730, 73.89 H/s
[2016-10-18 17:12:43] GPU #0: GeForce GT 730, 73.89 H/s
[2016-10-18 17:12:43] GPU #0: GeForce GT 730, 73.89 H/s
[2016-10-18 17:12:43] GPU #0: GeForce GT 730, 4595214.36 H/s
[2016-10-18 17:12:44] GPU #0: GeForce GT 730, 767528227.67 H/s           
[2016-10-18 17:13:36] Stratum detected new block
[2016-10-18 17:13:36] GPU #0: GeForce GT 730, 58957149.84 H/s
[2016-10-18 17:13:41] GPU #0: GeForce GT 730, 799182387.36 H/s         # WAOOH !!
[2016-10-18 17:14:50] Stratum detected new block

Same problem on port 3333.
Anyway I read somewhere that hashrate indication is false with GPU miner ...
Obviously it's true.

I get rid of the first address, as you can see on the command above, the address changed.
Is it possible for you please to check with this one :

42XzhFyTXBC4UPLWgbrmgwTiXKCHYuaDS56gdmhHgFm3Fwjh6PE9cPtUwXTtYtpzMWFDtqStYdZ9HNQ cxoCgwYLX4oDJEkW

Also, I use to mine for myself on 2 different machines (different location) with full monero node on this same address, plus with ccminer.exe, shouldn't I do it ?
Please tell me if I do anything wrong, and if you have some advices ...

Thanks