Solved Quicky about Sempron 3000+

Dell / Dell system inspiron 7720
December 31, 2013 at 21:47:25
Specs: Windows 8, 2.401 GHz Intel i7-3630QM/ 8052 MB DDR3 1600Mhz
Real quick question:

Finally got to OC my Sempron 3000+ with ClockGen. IK, IK, it's a software overclocker, but I really didn't have much choice.

This is my question: How far do you think I can safely push this thing up with ClockGen until it dies? I've currently got it to 2.2 Ghz,but I'm hoping for 2.4+.

So far, at 2.2Ghz, and the massive cooler the thing has on it, my temps have peaked at 129F.

EDIT: Became unstable at 2.2 under moderate usage. (figures :-\) Backed it down to about 2.05, and it seems to be OK for now.
My kingdom for an unlocked BIOS!

~oldie
Not everyone can decipher Klingon script...
chay' ta' SoH tlhe' vam Doch Daq

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#1
January 1, 2014 at 00:31:33
That's the limit for overclocking any CPU - when the system becomes unstable.
So you already answered your own question.

If it becomes unstable at 2.2, how on earth do you expect to avoid that - you can't.

If you want maximum performance why have you chosen a Sempron? If it's because of your current motherboard, it would make more sense to buy a new motherboard and CPU.

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#2
January 1, 2014 at 06:46:02
✔ Best Answer
How about posting the make/model of your board & telling us which Sempron 3000+ you have? Is it a socket A, 754, 939, or AM2? The socket A Sempron is actually a rebranded AthlonXP, the others are stripped down versions of the Athlon64. And overclocking an AXP is totally different than overclocking an A64.

"How far do you think I can safely push this thing up with ClockGen until it dies?"

The fact that you think you can "kill" a CPU by overclocking it means you have a lot to learn about overclocking. Overclocking does NOT kill CPUs & you can NOT overheat a CPU to death. The only thing that can kill a CPU is too much voltage. (EDIT: older CPUs, prior to the A64 & P4, did not have thermal protection & can be overheated to death).

To overclock "correctly", you need to be able to tweak ALL the buses (CPU, RAM, PCIe, PCI, AGP, etc), the CPU multiplier, voltages, etc. The problem with software overclocking is the lack of control of all the necessary settings so the results will be very limited. Regardless, software overclocking is the safest way to overclock even though the outcome will be poor.

"My kingdom for an unlocked BIOS!"

Did you look for one? There are plenty of BIOS modders out there that create unlocked BIOSes for many popular OEM boards. I used to post in the Rebels Haven forum which was the place to go to find modded BIOSes & BIOS info. With their help, I successfully unlocked several older Gateway/eMachines boards. Unfortunately their site is no more. It seems to have been replaced by BIOS-Mods.

http://www.bios-mods.com/forum/

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#3
January 1, 2014 at 10:35:32
My bad. When I said 'die', I was really referring to just being too unstable to use. Bad choice of words :-\ It is a socket 754.

At any rate, I'm pretty sure I could get it to 2.2 safely with a good regular overclock rather than with ClockGen. I entirely understand that software overclockers are not effective for fully pushing a CPU to it's limits.

Bios mods didn't seem to have anything for my motherboard. I posted a thread there, though.

Update: Running OCCT stress test, the thing now is unstable past about ~1.9Ghz. I attribute this to the mobo/PSU; the Vcore log was doing some weird s--- before it crashed. Maybe I should just admit that this isn't worth it. xD

~oldie
Not everyone can decipher Klingon script...
chay' ta' SoH tlhe' vam Doch Daq


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#4
January 1, 2014 at 12:42:17
Why didn't you post the make/model of the motherboard?

"It is a socket 754"

OK, so that means the default speed is 1.8GHz (9 x 200MHz). It should run at 2.25GHz if you have the appropriate BIOS settings to pull it off. Some things that are very important to know about overclocking your Sempron:

- lower the HT bus multiplier from 4x (800MHz) to 3x (600MHz)
- assuming you have DDR400, lower the RAM speed to DDR333/166MHz (if you have DDR333 RAM, lower the RAM speed to DDR266/133MHz)
- set the AGP bus at 67MHz
- disable ALL Spread Spectrum settings
- set the RAM voltage at 2.5V
- increase the CPU voltage as necessary to stablize the overclock

If you can accomplish the above, the CPU will run at 2.25GHz, the HT bus will run at 750MHz, & the DDR400 RAM will run at 204.5MHz (DDR333 RAM will run at 160.7MHz).

If you don't already have the A64 RAM Frequency Calculator, here's a direct download link: http://www.overclockers.com/forums/...

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#5
January 1, 2014 at 13:17:22
(facepalm) Sorry again about that. My mind is in a bit of a muddle from staying up too late for New Years.

Mobo is K8V-MX/S. (OEM board :-\)

Thanks for the settings Riider. I'll try them if I can get an unlock for my BIOS or find a software overclocer (however remote the chance) that gives me full(er) control.

~oldie
Not everyone can decipher Klingon script...
chay' ta' SoH tlhe' vam Doch Daq

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#6
January 1, 2014 at 17:18:48
I'm guessing this is the board:
http://www.ascendtech.us/asus-k8v-m...

It appears to be a Fujitsu-Seimens OEM board aka D1711:
http://uk.ts.fujitsu.com/rl/service...

It looks like there's a modded BIOS available in the following forum but I have no idea what may have been done to it:

http://www.boerse.bz/boerse/freisch...


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#7
January 1, 2014 at 18:00:35
Riider, I can't use that download link as it is a information trolling site. Wants various info, credit card numbers etc to download the file, but I'm not that stupid.

Any other links?

EDIT: I think I found one here: http://forums.mydigitallife.info/th...

EDIT AGAIN: Dangit! The file got deleted .-.
~oldie
Not everyone can decipher Klingon script...
chay' ta' SoH tlhe' vam Doch Daq

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#8
January 2, 2014 at 21:17:18
I appear to have run into a problem.

In the process of flashing the BIOS with a new ROM in lieu of obtaining a modded BIOS, it broke the WinXP Home that was installed on it.

Time for a thread in the WinXP section,just to stay on topic.

~oldie
Not everyone can decipher Klingon script...
chay' ta' SoH tlhe' vam Doch Daq


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#9
February 12, 2014 at 08:02:30
Aha, success! Using a program called SysTool, I was able to drop my RAM speeds to 166 and the get the FSB up to 234. Now running at 2100 CPU and the RAM is at 190, and so far so good with 9Hrs of overnight infinite OCCT testing.

Unfortunately, because of the nature of a software overclocker, I can't control the AGP bus or HT multiplier, so they just had to stay the same. Oh well, it's working good right now.

~oldie
Not everyone can decipher Klingon script...
chay' ta' SoH tlhe' vam Doch Daq

message edited by OLDISGOOD


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