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Overclocking and using speedstep, on linux. evga 680i

post #1 of 6
Thread Starter 
Yo yo.

With my evga 680i board, I achieved a stable 600mhz overclock on my e6600. However, when you overclock with this board, it disables the Intel Speedstep option, I feature I very much like, and would use to save temps when im not playing games.

However, linux cpufreq appparnetly relys on the bios. When I dont overclock my cpu (2.4 ghz) cpufreq works fine (with the ondemand governor) but when I overclock the cpu to 3.0 ghz in the bios, cpufreq doesnt work. They neccessary sys files arent in /sys/devices/system/cpu0/ etc etc. I had orginally been using the acpi cpu freq driver, but the "Enhanced Speedstep" inst working either.

(slackware 11 with kernel 2.6.21-ck2/conroe e6600(2.4 default)/ evga 680i motherboard.)

why would speedstep be disabled when overclocking. Do other intel boards, or 680i boards do this? my asus socket 939 a8v-e board got a 600 mhz overclock FINE on my a64 4000+.

any information at all would be appreicated.
    
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post #2 of 6
I always thought that speedstep was primarily for laptops to keep them from running too hot. I would think that if you're overclocking then you wouldn't want speedstep because it would slow your CPU down.
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post #3 of 6
SpeedStep is very nice. It will run properly with my QuadGT even when overclocked. It idles at 6 x 333Mhz (2.0Ghz) and will crank up as needed up to 9 x 333 (3.0Ghz).

I guess some motherboards just do not support SpeedStep and overclocking at the same time. Look around in the BIOS and perhaps it isn't overclocking but another option that is keeping SpeedStep from running.
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post #4 of 6
Thread Starter 
No. It's the overclocking. Once I start screwing with the fsb, that option is gone.

http://evga.com/support/manuals/122-CK-NF68.pdf


page 50 "Cpu Configuration", as luck would have it, the picture in that pdf shows the option blanked out. However, the CPU Thermal Control option is still active, and I think is what is making cpu frequency scaling working under windows. i dont knwo if these are features of speedstep, and if they are, why arent they blanked out? Whatever the Intel Speedstep option is doing, I would imagine it is the cpufreq flages the bios to see if that is enabled or not. I dont know.

Does anybody overclock a conroe, and NOT be able to use speedstep?
Why would they disable it?
    
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Hard DriveOptical DriveOSMonitor
Hitachi Deskstar E7K500 (500GB on Sata-I) Plextor PX-716AL (slotloading DVD±R/RW-CD-R/RW) Slackware 11.0 + Dropline Gnome 2.16.2 ViewSonic VP211b (21.3" 25ms response time) 
KeyboardPowerCaseMouse
Saitek Eclipse Blue (USB 1.1) PowerPCCooling T51SLI (510 watt) Lian-Li PC-V1100Bplus Logitech G7 Black (Wireless FastRF USB) 
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post #5 of 6
Thread Starter 
Updated the bios, and that fixed all my problems. bios option is now available and cpufreq is working great. Idle CPU is now 2.00 ghz. Well, until I go for highly clocks.

If anyone has a good guide of link to info regarding memory ratios, and why a 1:1 or "linked and synced" is better, that'd be great.

ps. EVGA message board looks pretty nice, probably the best place to go for 680i issues. Plus with featureful mobos you wanna update the bios alot.
    
CPUMotherboardGraphicsRAM
AMD Athlon64 4000 SanDiego 2.40 Ghz ASUS A8V-E SE -Bios: 1010 eVGA 7900 GT KO RoHS (PCI-e) Kingston HyperX KHX3200A/512 (2x512MB PC3200 2.6v) 
Hard DriveOptical DriveOSMonitor
Hitachi Deskstar E7K500 (500GB on Sata-I) Plextor PX-716AL (slotloading DVD±R/RW-CD-R/RW) Slackware 11.0 + Dropline Gnome 2.16.2 ViewSonic VP211b (21.3" 25ms response time) 
KeyboardPowerCaseMouse
Saitek Eclipse Blue (USB 1.1) PowerPCCooling T51SLI (510 watt) Lian-Li PC-V1100Bplus Logitech G7 Black (Wireless FastRF USB) 
Mouse Pad
fUnc Industries sUrface 1030 Archetype w/ Liquid 
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Reply
    
CPUMotherboardGraphicsRAM
AMD Athlon64 4000 SanDiego 2.40 Ghz ASUS A8V-E SE -Bios: 1010 eVGA 7900 GT KO RoHS (PCI-e) Kingston HyperX KHX3200A/512 (2x512MB PC3200 2.6v) 
Hard DriveOptical DriveOSMonitor
Hitachi Deskstar E7K500 (500GB on Sata-I) Plextor PX-716AL (slotloading DVD±R/RW-CD-R/RW) Slackware 11.0 + Dropline Gnome 2.16.2 ViewSonic VP211b (21.3" 25ms response time) 
KeyboardPowerCaseMouse
Saitek Eclipse Blue (USB 1.1) PowerPCCooling T51SLI (510 watt) Lian-Li PC-V1100Bplus Logitech G7 Black (Wireless FastRF USB) 
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fUnc Industries sUrface 1030 Archetype w/ Liquid 
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post #6 of 6
Quote:
Originally Posted by byteframe View Post
Updated the bios, and that fixed all my problems. bios option is now available and cpufreq is working great. Idle CPU is now 2.00 ghz. Well, until I go for highly clocks.

If anyone has a good guide of link to info regarding memory ratios, and why a 1:1 or "linked and synced" is better, that'd be great.

ps. EVGA message board looks pretty nice, probably the best place to go for 680i issues. Plus with featureful mobos you wanna update the bios alot.
My Intel Memory Guide.
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Core i7 2500k ASRock P67 Extreme4 Gen 3 AMD 7970 16GB DDR3 
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System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 2500k ASRock P67 Extreme4 Gen 3 AMD 7970 16GB DDR3 
Hard DriveOptical DriveOSMonitor
Intel 520 256GB SATA DVD Burner Windows 7 64 bit Deal U2410 
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Adesso Mechanical Silverstone OP650 Logitech G700 
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Reply
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