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Hey guys i'm wondering how I should go about doing this.
I have a ABIT IC7-MAX3 motherboard with a p4 2.6 processor. Im trying to set my fsb @ 250 with a 5:4 ratio to keep a nice even 200mzh speed. These are my current settings:
N/B Strap : PSB800
1.6 CPU Vcore
2.8 DDRv
my ram (kingston corsair dual channel 2x 256)timings are relaxed @ 3-4-4-8
agp/pci is locked at 66/33 and the agp volt is at 2.6
I currently have my FSB set @ 245 and is decently stable. However when I set this to 250 with the same settings as described as above windows fails to boot. Now I increased the cpu vcore to 1.7 just temporarily to see if I just needed better cooling but it still didn't boot. I doubt its the ram but maybe? I have a stock fan and when the fsb is at 245 it idles at around 39.
I know this is a super long question, just trying to throw all the info in there. Any reply would be fab. Thanks!
"I currently have my FSB set @ 245 and is decently stable."
i wouldn't settle for anything but rock solid stability....
you did not state what speed your memory is
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You have nothing to worry about. Your system will be ROCK solid. Any P4 from 2A on could be overclocked 25% rock solid. ANT P4 northwood. And, you don't need to be lucky. I don't read and report. I use / own and state the facts. I am sick of people HERE read and QUOTED.
I OWNED /TESTED P4's and XP AMD. I don't quote. ANY P4 2.6C with less than 1.6 Volt will run 245 FSB, otherwise it is your memory problem.
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Hey, I just bought a huge fan also and Im still having stability problems @ 245-249.
I'm beginning to think its my ram, i've got 2x256 pc3200 kingston corsair dual channel.
The timings are at 3-4-4-8, any ideas?
Sorry if im forgetting critical information, just let me know and ill post it ASAP.
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Kingston corsair dual channel? You mean you are using one kingston and one corsair to have dual channel? IC7-MAX3 have a known issue with 5:4 when FSB is above 270, but at 250 you should be ok. I think it's your RAM.
Hey, real_cool, how did you get 540 RAM speed when you running FSB270 at 5:4? Could it because your IC7 5:4 is not working properly?
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Sorry,
I have 2x256 corsair pc 3200 in slots 1 and 3. scratch kingston, don't know what I was thinking...
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I got lucky with a pair of Apacer PC3200. I was able to run 1:1 dual channel, HT enabled, PAT at auto, up to 267FSB stable. At 270FSB, I have some problem.
At 275, I could run 5:4, but V-core @1.725 which I don't like.
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Shawn, I have two IC7, unless they both are not running properly to give me over 5600 to 6100 mb/s. And, the 3rd system IS7 also screwed up.
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Well, I just don't understand why are you getting 540 RAM speed if your FSB is 270 at 5:4 ratio. Memory bandwidth is not relevant here. Acoording to Abit's forum, the Max3 has 5:4 ratio problem, but I don't know if IC7, IC7-G have the same problem. Well, I need to do a little research because I'm thinking to get a IC7-G for another rig.
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Hey I realized that frys gave me some crappy corsair value select ram and not the corsair twinx I asked for. im almost positive that this was the problem, that value select ram is not meant for overclocking.
I dont think its the 5:4 bug cause that only becomes relevant at fsb speeds of 270 and higher.
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Hey, I changed the timings to 3:2 and noticed windows would not start untill I relaxed the timings as much as possible. (3-8-4-4) In 5:4 (at same fsb) timings work under spd setting. Does this indicate ram?
I don't understand why it could be a cpu problem because when the fsb is at 245 max load temp is only around 50. When I bumb it to 250 it locks up instantly.
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 Desktop Pentium M Petitio...
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overclocking 2200+thor on...
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