Solved Is it bad for a core 2 duo to run lower than 800mhz Tags: Laptops Core CPUs Last response: May 14, 2011 1:49 AM in Laptops & Notebooks Share kr0490 May 4, 2011 4:54:02 PM my core 2 duo in my laptop is running at under 800mhz, and in cpu-z the multiplyer is at 4 but it fluctuates, i saw it for a split second go up to 10x. Is this normal? heres a link to cpu z validation http://valid.canardpc.com/show_oc.php?id=1802153 More about : bad core duo run lower 800mhz Best solution WR2 a c 571 D Laptop a c 203 à CPUs May 4, 2011 5:03:21 PM Hello kr0490; It's called Speed Step (or EIST) and it's normal behavior. Run a couple programs that stress the CPU and you'll see it running a 'full speed'. SpeedStep / Enhanced Intel SpeedStep http://en.wikipedia.org/wiki/SpeedStep Share kr0490 May 14, 2011 1:49:31 AM Best answer selected by kr0490. m 0 l Can't find your answer ? Ask ! Publish Related resources Vista allows Core 2 Duo to under volt lower than XP??? Forum Solved800MHz or 667 MHz RAM for 1333 MHz FSB on core 2 duo e8400 Forum Does an i3 3110m at 2.4 run faster than a 2.6 Core 2 Duo Forum Does a pentium 4 run hotter than an intel core 2 duo? Forum SolvedIs Pentium Dual Core higher than Core 2 Duo? Forum Selling Core 2 Duo E6750, DDR2 800MHz RAM, LGA 775 Mobo Forum SolvedWhat's a good cheap LGA 1155 that's not less than a Core 2 Duo? Forum SolvedIs core 2 duo 2.9 ghz good or bad for gaming? Forum Solvedcan radeon 6670 1gb run with core2 duo Forum Intel® Core™2 Duo Processor T6600 (2 2GHz / 800MHz FSB / 2MB Cache) vs Intel® Co Forum Core 2 Duo E8200 and DDR2 800MHz problems! Forum Solvedwill a gtx 650 with intel Core 2 Duo 2.13Ghz run the like of arma 2 and 3 with atleast 30fps Forum Solvedwill Core 2 Duo e7200 OC to 3.16Ghz "very badly extremely" bottelneck GTX 750 ti? Forum core2duo - don't understand the fsb, 200 or 800mhz? Forum SolvedIs Core i3-3217U (3M cache 1.8 ghz with UMA) equivalent or better than Core2Duo Forum SolvedCan Battlefield 4 run high/ultra with an Intel Core 2 Duo CPU @ 2.93 GHz and a GTX 760 Superclocked Video Card? Forum SolvedCan a Dimension E521 run a Intel core 2 duo? Forum SolvedWhy OS booting in Pentium 4 slower than Core 2 Duo system? Forum Solvedcan I run ati hd 6670 1gb ddr3 on my asus p5g41c-m lx mother board? I have intel core2 duo e4400 2GHz processor, 2GB ddr2 RAM Forum Is a 3ghz dual core e5700 better than 2.6 or 2.8 ghz core 2 duo Forum More resources Read discussions in other Laptops & Notebooks categories Battery Acer Asus Dell Hewlett Packard iPad Toshiba Vaio !