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Overclocking ? Am I Doing This Right ?

post #1 of 10
Thread Starter 
Hello I'm new to overclocking and have done some research here on the forums. Before I ask for any questions I'll give you the hardware I'm running.

* Gigabyte 990FXA UD3 Motherboard

* AMD PII X6 1090t 3.2Ghz 1.4v CPU

* CORSAIR Vengeance 8GB (2 x 4GB) DDR3 1600 1.5v, 9-9-9-24 RAM

* COOLER MASTER Hyper 212 Plus Fan/Heatsink, bought a second identical fan for the push/pull.

I've read up mostly here:

http://www.overclock.net/amd-general...ing-guide.html

and here:

http://www.overclock.net/amd-motherb...they-mean.html

I'm kind of scared of touching the voltage on anything, and I know its half the battle when overclocking, my MB ups the voltages in increments of 0.005.
I made sure to turn off CE1, Cool and Quiet and Turbo Core. My Ram was under clocked at x6.66 multiplier in BIOS @ 1333 10-10-10-28, was easy to change the multiplier to x8 1600, 9-9-9-24 1T. My NB and HT was at 2000 and changed that to 2600.

So to test my cooling abilities I'm only going to go with upping the multiplier and not touch the reference clock and running Prime95 for a half hour and monitoring my temps and voltage on the CPU with Core Temp and CPU-Z.

For my first OC I started with:

CPU @ x19 x200 1.45v 3.8GHZ. Upped the voltages on everything else by the 0.005v from HT/NB to Ram. After 30 minutes the max temp was 45C - 47C on the CPU.

Then I did the CPU @ x20 x200 1.5v 4Ghz. Upped the voltages on everything again this time to a 0.010 increase from stock values. After 30 minutes the max temp was 78C - 80C and I noticed in CPU-Z the voltage jumping from 1.504v to 1.536v.

I thought I'd keep Prime95 running and go do something else while it ran, I came back 10 minutes later and my screen saver was on and everything on my desktop was frozen, guess I hit a wall on this OC and scaled back to the OC @ 3.8Ghz. Went off again coming back 10 minutes later, same thing screen saver and desktop frozen. So I thought I ran this same test for 30 minutes monitoring it and no desktop freeze, so is the screen saver making the desktop freeze when it turns on ?

So after looking at what I did, were the voltages right ? and is the temps in a safe range ?
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post #2 of 10
The maximum safe operating temperature for your chip is ~62C. Keep that in mind.
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post #3 of 10
using voltage is just to give it more power it will bring your temps up a little but will be more stable
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post #4 of 10
Thread Starter 
Quote:
Originally Posted by Sho Minamimoto View Post
The maximum safe operating temperature for your chip is ~62C. Keep that in mind.
Might be best to clock around 3.9 Ghz seeing as I go over that safe temp zone @ 4Ghz
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post #5 of 10
Thread Starter 
Quote:
Originally Posted by Tronic707x View Post
using voltage is just to give it more power it will bring your temps up a little but will be more stable
I was looking around the forums to look for safe stable volts to run and when too much is enough, I couldn't find anything here, maybe I'm not putting the right keywords into the search field ?
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post #6 of 10
You need to slow way down. You can use other peoples numbers as a goal, but every chip is different. I would suggest backing up and starting at 1.4v @ 3.4. Starting walking the clock speed up. Prime run, When it crashes, bump the voltage up 1 notch. When it passes, bump the multiplier up. Repeat. If your trying to reach max OC: repeat until you hit the max temp (62 C) after 15 minutes of Prime. I have a feeling you are going to hit max temps with your cooler before you hit max voltage.

p.s. - Turn your screensaver off just in case!
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post #7 of 10
Thread Starter 
Quote:
Originally Posted by Hatchet View Post
You need to slow way down. You can use other peoples numbers as a goal, but every chip is different. I would suggest backing up and starting at 1.4v @ 3.4. Starting walking the clock speed up. Prime run, When it crashes, bump the voltage up 1 notch. When it passes, bump the multiplier up. Repeat. If your trying to reach max OC: repeat until you hit the max temp (62 C) after 15 minutes of Prime. I have a feeling you are going to hit max temps with your cooler before you hit max voltage.

p.s. - Turn your screensaver off just in case!
Thanks very useful info I was looking for +Rep. I have scaled everything back to default in bios until I feel 100% confident. I will scale up as you said with the rinse and repeat. I also looked into better explanations of HT and NB gonna leave the HT at the stock 2000 and try to scale the NB to around 2800 to 3000. Also been looking into RAM OC and stability will do CPU, NB, RAM with the lowest/safest volts/temps.

What volts should I be concerned with, like just look at the CPU/NB/RAM volts and not worry about anything else ?
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post #8 of 10
Thread Starter 
So far I've made these notes from reading here in the forums, please add and correct me in these.

* In order of overclocking start with CPU then NB then RAM.

* 1090t Max Volts 1.55v & Max Temp 62C

* Start CPU at 1.4v and 3.4Ghz, run prime for 15 minutes also taking into account of max temp, if crashes increase volts to CPU by 1 notch. When passes bump multiplier and repeat.

* Start NB at 1.275v Max Volts 1.45v, push for 2800Mhz to 3000Mhz. Keep HT at 2000Mhz and don't increase HT voltage is useless and dangerous.

* Lower RAM from 1600Mhz to 1333Mhz to get better timings, my RAM's stock voltage is 1.5v DDR3 1600 9-9-9-24.
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post #9 of 10
There's also the part where once you just cannot overclock any farther for whatever reason, run Prime95 for a much longer period of time - I'm talking anywhere from 1 hour to 1 whole day (depending on how OCD you are on making sure your system is stable).
 
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RAMHard DriveHard DriveOptical Drive
4x4GB Corsair Vengance DDR3 @ 1800MHz 1.504v Crucial M500 480GB SSD RamDisk - adaptive 10GB volatile scratch LG Blu-ray drive 
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Cooler Master X6 Elite with stock fan removed CPU fan: 120mm Arctic F12 PWM @ ~300rpm PSU fan: 120mm Kingwin case fan via PSU fan plug Windows 7 Ultimate - 64bit SP1 
MonitorKeyboardPowerMouse
E772p CRT (Trinitron) @ 79-94hz 1152x864/1280x720 PS/2 Microsoft Internet Keyboard (replaced cord) Antec EA-380D (380w) with stock fan removed Logitech MX510 (blue) with replaced USB cord 
AudioAudioAudioAudio
White Monoprice 9963 IEM headphones [Left ear] LostEarBuds medium single-flange tip [Right ear] Unknown medium single-flange tip Asus Xonar DS 
AudioAudioAudio
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Some USB wireless Logitech keyboard Rocketfish universial power adapter (my cousin's) Some USB wireless Logitech mouse couch 
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HDMI audio-out to HDTV HDTV optical-out to Denon AVR-200 reciever 
CPUMotherboardGraphicsRAM
Pentium 3 @ 667MHz Some Intel mobo ATI Rage 128 AGP 32MB 2x256MB DDR1 
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1GB Sandisk CF card - boot drive Western Digital Caviar SE - 320GB IDE Maxtor - 200GB IDE RamDisk - adaptive 64MB viotle scratch 
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post #10 of 10
Thread Starter 
Ok I've got some results from last night. Only using the multiplier to OC I started off with 3.4Ghz then to 3.6Ghz in Prime 95 with stock voltages then to 3.8Ghz with 1 bump in voltage, never touching the HT leaving it at stock 2000Mhz and stock voltage through out the OC and leaving my RAM at stock values of 1600Mhz 9-9-9-24.

First try at 3.8Ghz

CPU @ 3.8Ghz 1.45v
NB @ 2600Mhz 1.155v
DRAM @ stock 1.500v
CPU PLL @ stock 2.500v
NB/PCIE/PLL @ stock 1.800v

Ran Prime95 for 1 hour when I was watching CPU-Z and Core Temp I noticed my CPU voltage going to 1.488v and a temp of 51C-52C, then 1.504v and a temp of 54C to 55C, but never going over the limit of 55C.

So I then though maybe I should lower my CPU voltage (for better temps), raise my NB to 2800Mhz and bump other voltages.

Second try at 3.8Ghz

CPU @ 3.8Ghz 1.35v
NB @ 2800Mhz 1.190v
DRAM @ 1.525v
CPU PLL @ stock 2.500v
NB/PCIE/PLL @ stock 1.800v

After running Prime95 for an hour I noticed the CPU voltage never went over 1.4v and was usually around 1.344v to 1.388v and the temp never went over 46C so I let Prime95 run over night for a full 10 hours. After the 10 hours the max temp never went over 46C and the OC passed with no errors, woot

So do you think I should leave it as is or try going for the 4Ghz ? If I do should I bump the voltages again within the NB and DRAM and maybe start the CPU at 1.4v ?
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