I don't understand it. While I haven't been wholly unsuccessful overclocking as my Athlon XP 2100 running at 2.2Ghz proves I've had, upping the voltage has done nothing to improve stability when trying to overclock higher. I have a watercooled rig so heat is not the issue. I've experienced similar issue with the northbridge. My Epox 8RD3A+ can reach approximately 220mhz and still be stable enough to not crash when running prime95. Upping the voltage for my nortbridge from 1.6 to 1.8 did nothing to help. Has anyone else had a similar experience where upping the voltage has had no positive effect?
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Little success in o'c gains when upping voltage
- Thread starter mikapc
- Start date
- Joined
- Feb 18, 2002
I'm guessing it's a Thoroughbred B, you should be able to get 2.3 GHz out of it with increased V core voltage like to 1.8 or 1.9 volts.
Some poeple needed 2 volts to get to 2.3 GHz which is what all 2100+ Bs ever made can do with adequate cooling and setups.
Over 2.3 GHz has been done many times but not all Thoroughbred Bs can go above 2.3 GHz except for famous DLT3C B's (not A's).
Some poeple needed 2 volts to get to 2.3 GHz which is what all 2100+ Bs ever made can do with adequate cooling and setups.
Over 2.3 GHz has been done many times but not all Thoroughbred Bs can go above 2.3 GHz except for famous DLT3C B's (not A's).
- Joined
- Nov 12, 2002
- Location
- Rootstown, OH
If voltage has no effect whatsoever, then its quite possible that a different component could be limiting you.
What did you change the voltage from/to?
What did you change the voltage from/to?
- Thread Starter
- #6
I generally experimented with voltages up to around 1.75volts. At that temp even my watercooling rig was having trouble keeping the temp within reason. I don't know why but if my cpu or system temp goes to around 48 it will just shut off and no it's not a bios auto shut off configuration issue, as I have mine set to shut off only after reaching 56c. Also I'm rather disappointed with corsair ram that I have considering what I payed for it. I can only get a o/c a few mhz above 200mhz before the ram will fail in memtest. I'm thinking of just selling my 512megs of corsair twinx 3200 ram and buying instead a gig of generic 3700 ram and moving my fsb to 220 mhz which is the highest my northbridge can handle I think.
- Joined
- May 20, 2004
- Location
- Wheaton, IL
Honestly, I think it's better to buy generic high-speed RAM than it is to buy high-end low-speed RAM and PRAY TO GOD that it overclocks. I got high-end HIGH SPEED RAM (OCZ PC4000EL Gold) and it didn't even get to its rated speed. So I sold it at a huge loss to a friend and got some cheaper PC4000. Right now it's on its way so I'm using the RAM from the person I sold my stuff to.
As for voltages, it just happens where more voltage does nothing. Often it's just the motherboard/chipset not being able to handle the speeds. Also, from what I know, sometimes lower FSB will allow you to reach higher CPU speeds with lower voltages. It's happened to me now that I have this slow RAM but now it's much easier to run at 2.6ghz.
As for voltages, it just happens where more voltage does nothing. Often it's just the motherboard/chipset not being able to handle the speeds. Also, from what I know, sometimes lower FSB will allow you to reach higher CPU speeds with lower voltages. It's happened to me now that I have this slow RAM but now it's much easier to run at 2.6ghz.
- Thread Starter
- #8
yeah, I made the mistake of assuming that with corsair I was paying for ram that would o/c well but that was not the case. While the ram works at the speed it's supposed to with rather good timings I don't see how it's better then other ram that can handle up to 400mhz. Ram either works or it doesn't right at a certain frequency?
- Joined
- Jan 18, 2003
Voltage to ram is also important I run 3.3 thru my ram 24\7 and on my nf7-s ran up to 3.45 @ one time. You should be able to do a vddim mod to your board and get higher fsb with better timing's if you up your ram voltage. Here's a place to find you vddim mod http://www.motherboardfaqs.com/content.php?content.35
- Joined
- Nov 12, 2002
- Location
- Rootstown, OH
- Joined
- Jan 18, 2003
mikapc said:
I hope not Ive been running 3.3 thru my mushkin 2x256 pc3200LVL2 bh-5 and pc3200 hyperx2x256 bh-5 for some time now with no problem's yet just make sure you have really good air flow in your case. Xtreme overclocker's use up to around 4.0 volts' on there ram so IMO .5 less should be ok
- Thread Starter
- #14
Hehe... I would say, My compuser is enclosed within a cabinet, the case is open and I have a real fan ( for humans, 3 speed) blowing on the exposed case. It kind of compensates for the computer being entirely enclosed within this large wooden cabinet.
- Joined
- Sep 27, 2003
Why don't you run MBM5 and check your voltage rails and whatnot. When you set your NB voltage up it could still be fluctuating. I have a 400watt Sparkle as well (FSP-GN I think) and my 12V rail is at 11.55V. That is why I cannot get higher than 223fsb =( I am L12 modded and all. Check your voltages and fluctuations before beating yourself down mang.
- Joined
- Jan 18, 2003
OCP=over current protection
http://www.xtremesystems.org/forums/showthread.php?postid=335962#post335962
http://www.xtremesystems.org/forums/showthread.php?postid=335962#post335962
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