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AMD 2800 freeze after 4 hours ran prime95


luffy

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Link to my system spec

AMD 64 2800+ OS XP 32 bit.

Speed: 1.8GHz.

I overclocked it to 2.07GHz see the pictures. I ran prime95 large FFT for 4 hours. Then my computer hang?

Prime95:

[sat Jan 09 13:41:23 2010]

Self-test 1024K passed!

[sat Jan 09 14:00:33 2010]

Self-test 896K passed!

[sat Jan 09 14:18:23 2010]

Self-test 768K passed!

[sat Jan 09 14:35:30 2010]

Self-test 640K passed!

[sat Jan 09 14:53:36 2010]

Self-test 512K passed!

[sat Jan 09 15:11:06 2010]

Self-test 448K passed!

[sat Jan 09 15:27:19 2010]

Self-test 384K passed!

[sat Jan 09 15:43:26 2010]

Self-test 320K passed!

[sat Jan 09 16:01:25 2010]

Self-test 256K passed!

[sat Jan 09 16:19:02 2010]

Self-test 224K passed!

[sat Jan 09 16:36:08 2010]

Self-test 192K passed!

 

The temp while running Prime 95:

CPU: 55

HD: 28

System: 30

GPU: 49

 

As you can see the all the test shows passed. When I touch the mouse and they keyboard. It does not respond. I have to hit the reset button to reboot the computer.

I'm newbie. I would like to hear every comments.

Thank you

Edited by luffy

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It's not stable. Did you just jump straight to 2.07ghz?

 

Edit: It also appears you're running 3dimms of ram. Using three dimms will put added stress on the memory controller. When it comes to overclocking youd be better off running 2x512mb.

 

Also an actual list of your system specs would be much more helpful

Edited by caffeinejunkie

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Hi, can you tell me how to find an actual list of my system specs?

No, I did not jump to 2.07Ghz. I raise the BUS to 220MHz. I ran the Prime95 for a hours. Then I raise to 230. I ran Prime95 for 4 hours. Then my computer hang.

I have another question, how come the Prime95 result did not show failed when the computer hang?

Edited by luffy

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Since you're able to overclock I assumes its not a prebuilt from dell, hp, ect so just ask whomever built it. As for the overclocking procedure I think you should give this a read. It was pretty much my bible back in my A64 days and it's pretty much the best way to get the most out of your system. As for it hanging rather than the test failing its just instability. While overclocking Ive had instability show with program crashes, corrupt files, hangs, artifacts, bsods, ect...

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Hello, can you tell me what is the diff between CPU/FSB Frequency Ratio (CPU Multi) and LDT/FSB Frequency Ratio (HTT Multi)?

I can only find Hammer Fid Control in the BIOS. I don't know if it is CPU Multi or HTT Multi?

The guide says "CPU/FSB Frequency Ratio (CPU Multi) to default."

Edited by luffy

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Hammer Fid would be the cpu multiplier. You'll want to find those HTT settings it should be a multiplier from 5x and down. It's key to keep the HTT at or below 1000mhz otherwise you risk file corruption/instability. Not changing the HTT multi may be what has you stuck at 2.07ghz. 230x5 would be 1150 which is way out of spec.

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If Hammer Fid is the cpu multiplier. How do I find LDT Multi setting?

In the Hammer Fid Control:

lowest is x4

Highest is x9

The guide says "LDT/FSB Frequency Ratio (LDT Multi) to 2.5x or 3x."

Thanks again.

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If Hammer Fid is the cpu multiplier. How do I find LDT Multi setting?

In the Hammer Fid Control:

lowest is x4

Highest is x9

The guide says "LDT/FSB Frequency Ratio (LDT Multi) to 2.5x or 3x."

Thanks again.

 

Good question. Knowing your actual hardware would help answer this. Im sure you could physically look at the motherboard and at least find the manufacturer name if not the model name. On all the boards I used it was straight forward as pictured below. Do you see any settings labeled with HTT or HyperTransport?

post-6425-1263255072_thumb.jpg

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I cannot enable Clock Spread Spectrum.

I took out 1 stick of ram. I ran Prime95 on 2x512mb for 10 hours yesterday. Prime 95 found no error. ( CPU overclock 230MHz, Hammer Fid Control x9, Memclock Auto).

 

I just raise the CPU overclock to 232Mhz, Memclock 100Mhz and lower the Hammer Fid Control to x4. I ran SuperPi found no error. Today.

I don't see manufacturer name anywhere on the motherboard. MB Model : nForce3.

Power supply: Orion XP400 Intel 12v.

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Hmm I dont see an option to change it but after relooking at your cpuz link I think your motherboard may do it automatically. I believe the rated fsb would be the HTT speed for A64s and at that speed itd be exactly 4x your fsb so it may do it on it's own. Id say just keep going as you are but I would probably look into getting a new psu. A quick google of that psu shows nothing but bad things and it will probably hinder your overclocking potential.

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Thanks for the PSU warning. I will find a replacement.

I have a question for CPU Vcore.

Link to my CPU specs.

It said my CPU Vcore min/max is 1.5/1.55.

In the guide says "For 130nm cores (i.e. Clawhammer, newcastles) you can go a little higher to 1.7v-1.75v".

My core temp while running Prime95 is 55C.

What CPU Vcore do you think is safe?

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