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Speedstep/C1E/PWM - BIOS Settings

alexp999

alexp999

Staff
Joined
Jul 28, 2007
Messages
8,012 (1.23/day)
Location
Dorset, UK
System Specs
System Name Gaming Rig | Uni Laptop
Processor Intel Q6600 G0 (2007) @ 3.6Ghz @ 1.45625v (LLC) / 4 GHz Bench @ 1.63v | AMD Turion 64 X2 TL-62 2 GHz
Motherboard ASUS P5Q Deluxe (Intel P45) | HP 6715b
Cooling Xigmatek Dark Knight w/AC MX2 ~ Case Fans: 2 x 180mm + 1 x 120mm Silverstone Fans
Memory 4GB OCZ Platinum PC2-8000 @ 1000Mhz 5-5-5-15 2.1v | 2 x 1GB DDR2 667 MHz
Video Card(s) XFX GTX 285 1GB, Modded FTW BIOS @ 725/1512/1350 w/Accelero Xtreme GTX 280 + Scythe sinks| ATI X1250
Storage 2x WD6400AAKS 1 TB Raid 0, 140GB Raid 1 & 80GB Maxtor Basics External HDD (storage) | 160GB 2.5"
Display(s) Samsung SyncMaster SM2433BW @ 1920 x 1200 via DVI-D | 15.4" WSXGA+ (1680 x 1050 resolution)
Case Silverstone Fortress FT01B-W ~ Logitech G15 R1 / Microsoft Laser Mouse 6000
Audio Device(s) Soundmax AD2000BX Onboard Sound, via Logitech X-230 2.1 | ADI SoundMAX HD Audio
Power Supply Corsair TX650W | HP 90W
Software Windows 7 Ultimate Build 7100 x64 | Windows 7 Ultimate Build 7100 x64
Benchmark Scores 3DM06: 19519, Vantage: P16170 ~ Win7: -CPU 7.5 -MEM 7.5 -AERO 7.9 -GFX 6.0 -HDD 6.0
Okay,
I just wanted to say/ask a few things. I posted in some threads a little while ago about low 3dmark scores, and it tunred out to be some settings in the bios which were holding back the cpu. I have since found that for my mobo "Foxconn 975X7AB", that it was in fact Intel Speedstep and not C1E. After a bit of fiddling I found with Speedstep on, it was undervolting my E6600 @ 3Ghz to 1.2v all the time! :eek: . It was giving me scores of about 1700 for the CPU in 3Dmark06. Now I have C1E (enhanced halt state) on and now everything is running really well, it under volts and under clocks when idle/low cpu usage, and clocks up and volts to what I have set in the bios, when needed (i.e Gaming). Now I have a quieter/cooler system when not gaming that uses less energy. :roll: (And here is me thinking that speedstep is supposed to be the successor to C1E :rolleyes:, lol!)

Now one final thing that has been bugging me in my bios. Here is a screen of one of the pages (Thanks to HotHardware - not my pc!).

attachment.php


How do I set the PWM mode?? ATM it is disabled and the fan is going up and down with the processor temp, but I am idling at 20-25 depending on room temp, and the fan never drops below 1500rpm!!! But everytime I try to set up PWM in the bios it runs at 2000-2500rpm. Anyone know how to use this feature.
Available settings are as follows:

PWM 0: 60-100%
T1: 30-90*C
PWM 1: 60-100%
T2: 30-90*C
PWM 2: 60-100%

Cheers.
 
Last edited:
anyone??
 
I had same issues on my old mobo. I just ignored the entire thing and used speedfan instead.. My fan speed was @ 480rpm instead (until the cpu got hotter then the fan went up).
 
i would use a speedfan too, or get a fan speed controller to manually control your fans. i never liked speedfan cuz i couldnt get it to work right, so i have a fan speed controller. much easier for me

edit: is there a way to enable it? does the fan speed go up and down randomly or when doing something cpu intensive?

edit2: with EIST it doesnt under volt and underclock, it merely throttles back performance when you dont need it. when doing anything that demands more it should get it right back to the overclocked state.
 
TechnicalFreak said:
I had same issues on my old mobo. I just ignored the entire thing and used speedfan instead.. My fan speed was @ 480rpm instead (until the cpu got hotter then the fan went up).
Click to expand...

I've got speedfan, just use it for temp monitoring. Have no idea how to setup fans speeds. Have 4 PWM controls in Speeds tab in speedfan, dont know what any of them do. Dont want to mess the NB fan up, it spinning 7000rpm keeping a hot NB at 45*C, cant stop that spinning!!!

Have noticed it does go below 1500rpm. Went down to 1450rpm @19*C, lol! Ah well, its quieter than other fans in my system. I may just leave it unless anyone knows how the bios settings work...
 
Spacegoast said:
i would use a speedfan too, or get a fan speed controller to manually control your fans. i never liked speedfan cuz i couldnt get it to work right, so i have a fan speed controller. much easier for me

edit: is there a way to enable it? does the fan speed go up and down randomly or when doing something cpu intensive?

edit2: with EIST it doesnt under volt and underclock, it merely throttles back performance when you dont need it. when doing anything that demands more it should get it right back to the overclocked state.
Click to expand...

It is disabled atm, looks like the screenie when I enable it. It hangs around 1500rpm @ 20*C. And ramps up as CPU temp increases. Disabling PWM is the only way I can get it to slow down from around max speed. Have no idea what im doing with values in the bios for PWM, and dont trust speedfan with my fans, so...
 
Spacegoast said:
i would use a speedfan too, or get a fan speed controller to manually control your fans. i never liked speedfan cuz i couldnt get it to work right, so i have a fan speed controller. much easier for me

edit: is there a way to enable it? does the fan speed go up and down randomly or when doing something cpu intensive?

edit2: with EIST it doesnt under volt and underclock, it merely throttles back performance when you dont need it. when doing anything that demands more it should get it right back to the overclocked state.
Click to expand...

About EIST, I beg to differ on this machine. It is the only setting that I changed. C1E works like I it should. Speedstep undervolts the voltage below stock (1.35v) to 1.22v and locks it there and gives me half performance all the time, despite cpu-z showing a changing multi!! lol!
 
alexp999 said:
About EIST, I beg to differ on this machine. It is the only setting that I changed. C1E works like I it should. Speedstep undervolts the voltage below stock (1.35v) to 1.22v and locks it there and gives me half performance all the time, despite cpu-z showing a changing multi!! lol!
Click to expand...


really? when i have it on and im not doing anything my 9x multi drop to 6x and voltage drops to like 1.22v. when gaming it will kick right back up to 9x and the voltage will go back to whatever i have it set to, currently at 1.38v. i have never heard of it throttling back permanently. is your mobo BIOS up to date?

edit: it shouldnt hinder performance when EIST is on, it should return to the overclocked settings even when running 3DM06
 
Spacegoast said:
really? when i have it on and im not doing anything my 9x multi drop to 6x and voltage drops to like 1.22v. when gaming it will kick right back up to 9x and the voltage will go back to whatever i have it set to, currently at 1.38v. i have never heard of it throttling back permanently. is your mobo BIOS up to date?

edit: it shouldnt hinder performance when EIST is on, it should return to the overclocked settings even when running 3DM06
Click to expand...

It throttles the voltage but not the multiplier, but I get 1700 in 3dmark06 with EIST on. and 2600 with it off for the cpu score. C1E doesnt affect performance but drops volts and multi when it is not needed. BIOS is right upto date. P32 from jan 2008.
 
do real time apps seem slower or does gaming performance suffer? if not then i wouldnt worry about the lower scores with EIST on. if it bothers you that much than just turn EIST off and be done with it LOL
 
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