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Q9550 Overclock Problem
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Member
2 product reviews
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12. July 2009 @ 21:01 |
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I have a Q9550 thats A stepping and E0 Revision, For some reason I cant get it past 3GHZ.... I have a Gigabytye UD3P so it shouldnt be a problem. Could it be that I have only 1 stick of RAM thats 1066MHz? cause one stick was bad. I cant think of any reason. I didnt change anything but the FSB and moved the voltage up one bump but thats it. What settings should I try/test out.
One more thing, How dangerous is this cause everytime it boots with a bad overclock I get loud repeated beeping and then it restarts.
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AfterDawn Addict
1 product review
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13. July 2009 @ 02:29 |
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Not all CPU's overclock equally...it may just be that the chip you have is not a good overclocker.
What kind of cooling do you have? If it is lacking, then overclocking will be harder.
Typicaly the beeping non-boot is not dangerous, but it may disrupt files on your hard drive causing you to have to re-install your OS.
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AfterDawn Addict
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13. July 2009 @ 06:40 |
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That's not a bad overclock, that's faulty memory I believe.
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Member
2 product reviews
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13. July 2009 @ 08:34 |
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I hope so cause 1 stick of the g-data 1066mhz was already bad so I only have one stick in. I have a noctua 120mm tower cooler with a extra scythe fan in a haf 932 so collings not an issue
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AfterDawn Addict
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13. July 2009 @ 08:35 |
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By the laws of batches, if one stick fails, it's quite likely the other will as well, especially if you bought them as a matched set (you certainly whould have)
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AfterDawn Addict
1 product review
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13. July 2009 @ 10:47 |
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I can't believe I forgot to ask the ram's brand.
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Member
2 product reviews
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13. July 2009 @ 15:57 |
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Yeah, and the RAM is G-Skill.. not G-data (which isnt real)
So basically bad ram leaves to 0% overcloking possibility?
If so what RAM should I get cause im out of warranty.
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Docsworld
Newbie
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13. July 2009 @ 16:14 |
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David levell
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13. July 2009 @ 16:36 |
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Yea I think I will. The G-Skill had the best ratings but I know from experience that corsair is a quality brand.
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AfterDawn Addict
4 product reviews
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13. July 2009 @ 17:03 |
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G-Skill is also a good brand, you just got unlucky.
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Member
2 product reviews
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13. July 2009 @ 17:24 |
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I thought so, I knew g-skill was good. So im guessing that I will NEED new RAM for any kind of overclock huh?... I just hope I can get a solid maybe... 3.5Ghz without having to change anything but voltage. All this 1:1 Ratio and RAM Timings are alittle confusing.
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AfterDawn Addict
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13. July 2009 @ 17:25 |
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Well, as long as you set the memory multiplier correctly.
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Member
2 product reviews
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13. July 2009 @ 18:10 |
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???wats that.. lol.. but seriously wat setting would that be in BIOS so I can do alittle googling.
thanks
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AfterDawn Addict
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13. July 2009 @ 18:11 |
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Then I'm not surprised your overclocks are failing. Memory multiplier needs to be adjusted correctly so the memory doesn't run too fast.
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Member
2 product reviews
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13. July 2009 @ 18:28 |
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I just got it to 3Ghz (wow.. i know) and checked cpu-z and saw that my ram timings are 7-7-7-20 and its supposed to be 5-5-5-15 and the Mhz speed is 564 istead of the rated 1066.. this pretty much sums up the bad ram right?
And I saw a BIOS setting called memory multiplier, I just dont know what to change in it.
heres a screen, or close to it
http://benchmarkreviews.com/index.php?op...=1&limitstart=6
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AfterDawn Addict
4 product reviews
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13. July 2009 @ 19:26 |
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Basically, Memory multiplier x FSB = memory speed
2.0x memory and 333FSB = 667mhz
2.66x memory and 333FSB = 888mhz
etc. etc.
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Member
2 product reviews
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13. July 2009 @ 19:51 |
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So I should multiply the memory so it doubles my processors FSB
For example a cpu with a 400Mhz FSB would need a 2.0x multiplier to get a 1:1 ratio right?
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Member
2 product reviews
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13. July 2009 @ 23:26 |
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just got 3.4 by changing the memory multiplier to 2x which is 400x2 and 400 x 8.5 is 3.4Ghz so its at a 1:1 ratio. I just dont understand what the letters by the multipliers mean. for instance it says 2.00A 2.40A 2.00B 2.60B 2.60C 2.00C ECT. I says each letter stands for a different number FSB, I think a is 266 b is 333 c is 400 and d is 466 but If my fsb is say 450... which would I chose? 2.00 always gives me the 1:1 ratio regardless of the letter.
I was looking around and found this forum with the same question about ram multiplier letters
http://www.tomshardware.com/forum/251226...e8400-ep45-ud3p
This message has been edited since posting. Last time this message was edited on 14. July 2009 @ 00:14
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AfterDawn Addict
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14. July 2009 @ 04:34 |
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If you have 800mhz memory that's correct. it's generally recommended to use 2.00D for all high overclocks. The 2.00 obviously means the memory speed will be reasonably low with the high FSB (but with 800mhz RAM you're still limited to a max of 3.4Ghz until you begin overclocking RAM, which is difficult).
The D signifies you are using an FSB of 400 or above.
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Member
2 product reviews
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14. July 2009 @ 08:43 |
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oh ok. Im using 1066MHZ RAM so D would still be the best choice right?. And would using a 1066Mhz of the RAM make it unstable? I know going over the rated 1066 leads to a RAM overclock which makes it very unstable, but Ive heard lower memory clocks lead to better stability.
Thanks again
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AfterDawn Addict
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14. July 2009 @ 11:33 |
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1066 RAM is better for overclocking, but beyond 400FSB (i.e. 3.4Ghz for a Q9550), 2.00D is still the only multiplier you should use.
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Member
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14. July 2009 @ 15:37 |
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Ok... the last (probably) question I have is when will using say 2.20D or 2.40D ever be effective vs 2.00D or 1:1 ratio?
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AfterDawn Addict
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14. July 2009 @ 15:46 |
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There is no 2.20D or 2.40D... :S
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Member
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14. July 2009 @ 16:48 |
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so true... =/ There is a 2.33D and a 2.66D. When will you ever need those?
and I just got 3.6Ghz partially stable (been running prime95 for like an hour so far) I just needed to push my voltage from like 1.25 to around 1.28
Edit: just crashed a 3.6 after about 2 hours with 1.28v. im now trying with 1.3v
This message has been edited since posting. Last time this message was edited on 14. July 2009 @ 19:07
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AfterDawn Addict
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14. July 2009 @ 19:41 |
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There's no 2.33D either IIRC, just 2.00 or 2.66.
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