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AMD Phenom II x4 925 2.8ghz OC - Seeking help

post #1 of 10
Thread Starter 
I have an AMD Phenom II x4 925 2.8ghz stock speed/stock cooler that I want to overclock to something like 3.4 to 3.5ghz. I was wondering if anyone could help me by guiding me. I have never overclocked any CPU before but I do know the basics behind it. I have an M4A88TD-M/USB3 motherboard. I was looking in the BIOS and I notice that the motherboard has some profiles built in. One of them said "3.4ghz" I'm wondering if choosing that profile would auto overclock my CPU to that speed, or should I manually adjust the settings my self.


I'm also looking into upgrading to a newer graphics card. Currently I have a Geforce 9800 GT 512mb. I am thinking of getting a GTX 660 SC 2GB to replace it. I want to know if it will bottleneck my CPU. I heard that playing at higher resolutions bottlenecking is not that great. I have a 24inch LCD screen 1920 x 1080. If their is bottleneck will playing at higher resolutions matter?

I am willing to buy another graphics card that wont bottleneck my CPU just in case the GTX 660 SC does. If anyone can give me a recommendation I will appreciate it as well.


All help is appreciated. Thank you for your time and have a nice day.
post #2 of 10
Hello

I would advise overclocking yourself. Its not that difficult and 3.4ghz is achievable. A question though, what speed is your ram?

Your cpu is not a black edition so you will have to overclock using the bus speed.

your current cpu multiplier should be at 14 (14x200) so adjust your bus speed to reach 3.4ghz

When adjusting your bus speed you will be chaning your ram speed, ht link and cpu-nb. Keep your ram as close to the rated speed as possible and the ht link as close to 2000mhz as possible. Try to increase your cpu-nb speed to around 2600mhz as this will give you some extra performance.

Dont go over 1.55 volts on the vcore or over 1.3v on the cpu-nb.

Stress test with prime95 and dont let your cpu temperature go above 60 degrees

Thats a rough guide but its something to follow. I notice you mention stock cooling so be carefull with temperatures. Also, your motherboard has no VRM cooling so dont go silly with the volts

In answer to your second question. Yes and no. It depends on what games you play but in most cases i dont see it being much of a problem. As you said though, playing at 1920 x 1080 will reduce bottlenecks. Other then that its a good choice

sorry if some bits are not clear but ask again if you need further help smile.gif
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AMD Rig
(11 items)
 
   
CPUMotherboardGraphicsRAM
FX 6300 Asus m5a99x evo MSI GTX 660 8gb corsair vengeance  
Hard DriveOptical DriveCoolingOS
Samsung 840 120gb  Asus Silverstone argon ar 01 Windows 7 64 bit 
PowerCaseAudio
xfx xxx 650 Antec One Asus Xonar DG 
CPUMotherboardGraphicsRAM
AMD FX 8350 Asus crosshair V formula-Z Asus 7970 Corsair vengeance pro 1600mhz (2x4gb) 
Hard DriveCoolingOSPower
Corsair force series GT 120gb + western digital... Corsair H100  Windows 7 home premium 64-bit Corsair AX 750 
CaseAudio
Corsair 650D Asus Xonar DGX 
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post #3 of 10
Thread Starter 
Quote:
Originally Posted by South80 View Post

Hello

I would advise overclocking yourself. Its not that difficult and 3.4ghz is achievable. A question though, what speed is your ram?

Your cpu is not a black edition so you will have to overclock using the bus speed.

your current cpu multiplier should be at 14 (14x200) so adjust your bus speed to reach 3.4ghz

When adjusting your bus speed you will be chaning your ram speed, ht link and cpu-nb. Keep your ram as close to the rated speed as possible and the ht link as close to 2000mhz as possible. Try to increase your cpu-nb speed to around 2600mhz as this will give you some extra performance.

Dont go over 1.55 volts on the vcore or over 1.3v on the cpu-nb.

Stress test with prime95 and dont let your cpu temperature go above 60 degrees

Thats a rough guide but its something to follow. I notice you mention stock cooling so be carefull with temperatures. Also, your motherboard has no VRM cooling so dont go silly with the volts

In answer to your second question. Yes and no. It depends on what games you play but in most cases i dont see it being much of a problem. As you said though, playing at 1920 x 1080 will reduce bottlenecks. Other then that its a good choice

sorry if some bits are not clear but ask again if you need further help smile.gif

I have 8GB of this ram http://www.newegg.com/Product/Product.aspx?Item=N82E16820231277

I hope that helps.
post #4 of 10
Thread Starter 
There hasn't been any replies since I posted my current RAM (DDR3 1600 (PC3 12800). Can anyone tell me if my current RAM will cause any problems while trying to overclock the CPU?

Also I went into my motherboard today and I notice I don't have any settings to change the bus speed. The only thing I can do is go into the built in overclocking profiles and change my CPU speed to whats in there. Does anyone know whats going on? I don't want to overclock the CPU and end up messing it up.
post #5 of 10
Unless that memory could be overclocked, lover it to 1333 and then find the place in BIOS where that number "200" shows. put it on manual and start increasing it to let's say 210. Run tests and if stable raise it by 5 and check again etc. until no longer stable, than back down a notch. While you are doing that disable all the power saving features in BIOS.
One more thing, I would not relay on the stock cooler to go that high. couple of hundred MHz but not higher. In all the steps watch the voltages and temps because when left on auto they are known to jump suddenly.
Also keep in mind that all the CPUs are not "born " equal and that some examples of the same processor may not OC the same.
Print if you don\t have MB manual on paper.and keep it open while working in BIOS it can help. Find out how to reset BIOS as you will need to do that when you do something (an you will) that would make it not post.
post #6 of 10
I don't know about that motherboard, but my 925 with a GA-78lmt-s2p 3.1 will do 3.5ghz all day with just setting fsb to 250.
I then undervolted it, and it will do 3.5ghz @ 1.3v in Prime95 for at least an hour or two, (didn't bother with longer), and play games too.

250 fsb is a really nice sweet spot. The HT and NB are right at 2000, my cheap memory is at 1333 or so with timings of 7 at stock volts, NB is stock volts, etc.
Since it's a locked multiplier, going above 250 puts those other things out of whack. So then I have to choose between like 1800 HT or 2200 HT, have to drop the memory way below 1300 or go the other way but raise the timings and voltage, etc. It all gets annoying and more unstable. And hotter. Undervolting sure can make things cooler and make fans quieter.

I think if it would do 3.9ghz, that puts those other things at good spots again. My CPU will boot up and run at 3.9ghz, but it needs over 1.4v or more to do it, and I think the motherboard also needs other voltages raised to make it stable. I need that PC to be 100% rock-solid stable, so I stopped messing with it and said 3.5ghz undervolted is good enough.

Speaking of undervolting, K10Stat and PhenomMrsTweaker are awesome. It now idles at 780mhz @ .75v, (can do much lower, like under .6v, but I didn't bother extensively testing it since I know the wattage gains are very minimal under .8v). And it spends most of its time at a max of 2ghz @ .95v. Makes me think the CPU fan is broken since I never hear it.
post #7 of 10
Well, it just boils down to wants and needs. I like to have the best performance possible and as far as noise goes, damn the torpedoes. If I wanted slower computer I would just get one like that and save money to boot.
Where did you dig those programs from, I just downloaded them, if they work on Phenoms II would be gret for tweaking but I still prefer to set stuff in BIOS after finding limits.
post #8 of 10
I assume I got those programs from the same place you just did.
You can't undervolt in bios like that. What's great is you can set your super awesome maximum overclock in bios, and then use one of those programs to turn the CPU and volts down when you don't need it, like the stock Cool and Quiet does, but better.

Most of the time doing regular stuff, my 925 is quiet at around .75v to 1v. If it needs more speed, it automatically jumps to 3.5ghz and the 1.3 volts I set in the bios. Those are impressive programs. WIthout the programs, it pretty much only is at 800mhz @ 1v, or 3.5ghz @ 1.3v, with nothing in-between. That means anything above 800mhz is at 1.3v. That's a big deal for people who above 800mhz jumps to 1.5v or whatever.
Edited by OGOC - 6/14/13 at 2:25pm
post #9 of 10
Will try, will tell. thanks, good stuff.
post #10 of 10
Thread Starter 
Sorry for the late reply. I want to thank everyone who took some of their time to help me and answered all of my questions. I haven't had much time to overclock the CPU but I'm thinking on doing it when I get my GTX 660 SC in the next week. If I run into a problem I will ask for help again. Again thank you for all the help, I really appreciate it.
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