Overclocking FSB question
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Original Message
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Name: vvume
Date: July 31, 2003 at 14:40:34 Pacific
Subject: Overclocking FSB questionOS: windows xpCPU/Ram: 1.2GHz *2 / 1GB ECC Regis |
Comment: I tried overclocking my dual AMD MP 1.2GHz by altering the FSB from 133MHz -> 150MHz (and nothing else). Quite a bit of jump, but the cpus were humming along fine at 1.35GHz each. I put the machine through rigourous tests including the SiSandra burn-in wizards with no problems for hours. However when I let the system idle over 5-7 hours it crashes randomly when under no heavy load. Never happens when I use the machine. CPU temperatures were under 52C. Is the machine scared to crash in my presence??? Any explanations?
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Response Number 1
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Name: Robet
Date: July 31, 2003 at 14:52:31 Pacific
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Reply: (edit)I have a athlon XP 1500+ over clocked to 1580 and when I use the pc it runns gr8 never over 52 c always 49 to 51 even under bigest load but when it idles it crashes after about 8 hours too but reboots on its won. My fsb is 159? Ihope they can help me tooo.... K7N2 mother board here.
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Response Number 3
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Name: vvume
Date: August 1, 2003 at 05:44:25 Pacific
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Reply: (edit)shucks! my MB does not allow core voltage changes... but does that explain the delayed crash? maybe sensitive drivers??
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Response Number 4
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Name: Steam
Date: August 1, 2003 at 06:03:37 Pacific
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Reply: (edit)Might be a capasitator or some other "small" bit on the motherboard heating up really slow. As heating up also wasting more power and not having enough output to feed the CPU/NB. Would explain the waiting and the booting... (really its just an odds-against-it guess) :) Had the same problem and it seemed to be the hard drive. After moving it next to a air-intake fan. No problems. Anyway im still looking into the matter as the hard drive temp doesn't seem the viable option. My system is a single P4 based... Steam
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Response Number 5
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Name: vvume
Date: August 2, 2003 at 10:40:43 Pacific
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Reply: (edit)could be.. as far as I could tell, the cpus did not gradually gain heat (in fact the temp went down when idle as should be expected). Obviously some other capacitor on the board. Can the AGP handle such a big jump in FSB (133->150)? I use ECC Registered Ram DDR 266, so I assume it can take a 266->300 overclocking? Or am I assuming too much? Another quick question: Generally speaking, %-wise, is it easier to overclock faster chips over slower ones? I could bump a 1.2GHz to 1.35Ghz, so would I be able to proportionally bump up a 2.13GHz Barton MP to say 2.4GHz with equal ease?? :) or just the same amount random crashes...
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