Sager NP4750 cpu voltage mods and temps results Review - Page 2

no 35C is quite impressive, but that's the same as what most people get at 800MHz that's all I was sayin. it appears lowering the voltage helps a lot more at 2.2GHz than 800MHz. keep up the good work!

After applying NetMav's settings to my own lappy (well, used 10x multiplyer cuz I have the 3200+) I have a 27 degree cpu right now!!!

SUCK ON THAT DOTHAN!!

I have the 3200+ processor, which clocks at 2.0ghz with a 10x multiplier. What kind of damage do you think would be done if I were to OC it to 2.2 ghz with the 11x multiplier like all you guys have? what's fundamentally different between the 3200+ and 3400+ that prevents me from clocking that high?

I think you'd be OK, but if it were me I wouldn't OC my proc.

eh, no good.

I tried ocing with a multiplier of 10.5 (2100mhz) and the laptop instantly crashed. Maybe I wont try that again. It might have to do with having my voltage set to 1.325 v. But I dont think I'll bother with it again!

yeah im sure your voltage was too low. i would try to up the voltage to 1.4, then try the 10.5x again.

I used your exact settings and they worked great. No lockups or anything and much lower temps. I'm still having problems at startup but I think that's completely unrelated.

Yes, netmavrik, I have my settings setup identical to yours. Minus the whole 10x, 11x multiplier thing Stable too, It handled 3dmark05 fine, and believe it or not, I get a 10 point increase with the voltages knocked down! I suppose it's cuz of the decrease in heat. True, 3dmark05 is not as demanding on the CPU as BIT, but it's prolly enough for what I'm doing I think

Thanks for the info on the overclocking. I thought I read somewhere about the 3200+ multiplier being unlocked. But then again, it was pretty late and I might have made it up. I read the article again and it does say that the multiplier is unlocked. But the motherboard prolly doesn't allow me to change it. Toobad

OGRE!! Get that thing fixed!
you poor, poor ogre.

Would this have any effect on battery life?

Steve

Actually, funny you should ask. I just ran a very unnofficial battery test, ending about the time you just posted that. I took my 4750 (check sig for what I have) to the Math Emporium (it's this huge sea of those long-necked imacs, 478 of them, all equipped with math programs and crap. awesome bandwidth though. I ran a speed test from bandwidthplace.com and it came out to 12.7mbps) and did some homework. I booted up and checked the clock on the computer immediately. 4:47 and 98% battery. I did light stuff with the LCD dimmed as far as it would go like email, internet and such. Nothing much. I was down to 2% battery at 6:33 and the thing was beeping like mad at me so I shut it down. So using 96% of the battery,I made it 1 hour and 46 minutes. Eh, better than a P4, but not much better than before the voltage tweaking.

Anyone know how lowering the voltage would affect the wattage of the chip? We all talked about the 62 watt chip would be cooler and everything. But now my DTR cpu is chillin, but battery life has not been improved much. is it still drawing so many watts?

yeah the screen is the biggest drain on battery, then cpu, then gpu or maybe HD but def gpu if gaming.

I think mine's cursed

Good work, NetMavrik. I see you did your homework over the weekend with CrystalCPUID. You got some impressive results.

I have a few of my observations to share:

1) I don't think that lowering the voltage to .8 volts at 800 Mhz has any effect. The lower limit of the processor is set to 1.1 volts. However, at the high end, reducing the voltages will work.

2) I believe you are using AMD's Athlon 64 processor driver. If this is the case, then this driver acts like CrystalCPUID in that it manages the voltages and the speeds of the processor but at fixed rates. Therefore by using CrystalCPUID together with the AMD driver, you are being redundant.
Also by using the "always power on" the AMD driver is running at a constant 2200MHZ at 1.5 volts Therefore by using CrystalCPUID, it acts like a braking system. An analogy - it's like driving a car at full speed with the "pedal to the medal" and braking to adjust the speeds.

3) As a purist, I run CrystalCPUID with the regular Microsoft Athlon 64 processor driver. This way the program has full control of the processor. If we use your settings, 800Mhz, 1500Mhz, and 2200Mhz then the speeds of the processor will reflect this and only these settings will be used. The computer does run a little higher in temperature than your method.

4) By using your method, you will notice that you see the speed jumping around and using 1800 Mhz (9 multiplier) of the Amd processor driver much more often than 1500Mhz (7.5 multiplier).

This text is supplied as "food for thought" only.

What do you mean by that? From what I can tell, the stock settings only allow switching between 800, 1800 and 2200 (2000 for me). With Netmavrik's settings, the processor is doing the same thing, but the middle clock setting is 1500, which keeps it cooler, and probably conserves a little bit of battery.

That doesnt really make sense. If the voltage and clock speed change, the voltage and clock speed change. It doesnt matter what's telling it to do what. Maybe it's more like the brake and throttle are connected by a pully system so when one goes down, the other comes up.

Most of the messages on this board do not make sense to me also , so I guess, "wbeck" I have become a full fledged member of this group.

Change the processor driver back to its original (microsoft ) and you will see for yourself that the default settings are overwritten by CrystalCPUID

I said that I do not get the low temps as NetMavrik got. I mention once again that what I said are only observations. I might even be totally wrong!

I am not a geek nor a techie. Give me a break.

CrystalCPUID overrides the AMD driver as well. Oh, well.

I apologize if I have bothered you. I did not intend to be offensive. just trying to constructively bounce my observations against your own.

In a friendly sort of way, what's with the quotations around my name? it's nothing special, just the first letter of my first name and half my last. I was lacking creativity when I joined the forum.