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grmnasasin0227
Advanced Member
USA
2587 Posts |
 Posted - 10/25/2009 : 10:38:27 PM
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| lol. It's impossible that your memory handles that "fine", that would be to die for--there is simply some sort of instability at that speed, especially with timings that tight. You can't manually type in what you want your RAM to run at unless you have an NF200 chip, which you obviously don't. For the rest of us, memory runs on dividers. Put it in 1:1, which is the 400MHz one, your speed should then be double whatever your FSB is. We put RAM into 1:1 to be absolutely sure it is not the bottleneck, and it gives us the freedom to tweak and be sure that any errors are based on the CPU and nothing else. |
http://nerdrayge.blogspot.com/ |
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TacoBandito
Omega Member
USA
350 Posts |
Posted - 10/25/2009 : 10:58:18 PM
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Well, I've adjusted my FSB to the 400Mhz one at the 3.33 multiplier, i checked my bios for any sort of "dual channel" setting, didn't see anything there, I checked to make sure the ram was in the right slot and thats fine. The CPU is @ 363 with an x8 multiplier, so 2.9Ghz. This setup runs solid, I've been at it with Prime95 for about 10 minutes, and no errors so far. I tested at 3.0ghz - one core runs fine after 10 minutes, the other fails prime 95 testing within 30 seconds or less. Odd, right?
EDIT: I know I've said this before, but I really appreciate your help troubleshooting this with me. |
You can't trick me with all your computer lingo, young man! Tell me, how many Jiggawatts does this thing have? |
Edited by - TacoBandito on 10/25/2009 11:07:45 PM |
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grmnasasin0227
Advanced Member
USA
2587 Posts |
Posted - 10/26/2009 : 6:52:29 PM
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Yes, but is your RAM actually in 1:1? It will be double the speed of whatever FSB you selected if you did it right, this step is CRITICAL. Dual channel has nothing to do with it, anything made in the last 2 years on the DDR2 process is dual channel and sided.
Just for the sake of us being on the same page, we need to go over some terms:
FSB: Front Side Bus (speed), it overall determines the speed of your CPU and RAM.
Dividers: These are ratios set for common FSB values that determine what speed to make your RAM. For instance, 333/667, 333/800, 333/1066, 400/667, 400/800, 400/1066. You need the 400/800 one, so if you were at 400FSB, your RAM would be at 800MHz...see how it works? That specific divider is used for 1:1 with memory.
When you're talking about CPU speed, just type it in the format "FSBxmultiplier," everyone will know what you're talking about and it's much faster.
So all that said, give me:
Your mobo brand and chipset. It'll help me figure out what sort of BIOS you're looking at, and the tendencies of the board.
FSB
CPU multiplier
vcore
VTT
MCH
VDIMM
timings
We'll go from there. |
http://nerdrayge.blogspot.com/ |
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TacoBandito
Omega Member
USA
350 Posts |
Posted - 10/26/2009 : 8:33:20 PM
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mobo - Gigabyte GA-EP45-UD3P
Chipset - Intel P45 + ICH10R Chipset
FSB - 363 for cpu, 400 for ram.
CPU multiplier - x8
vcore 1.3v
VTT 1.2v
MCH 1.1v
DRAM voltage 2.1v
DRAM Termination 1.0v
timings 5-5-5-15
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You can't trick me with all your computer lingo, young man! Tell me, how many Jiggawatts does this thing have? |
Edited by - TacoBandito on 10/26/2009 8:38:40 PM |
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grmnasasin0227
Advanced Member
USA
2587 Posts |
Posted - 10/27/2009 : 12:14:18 AM
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The UD3P is the best mobo I have ever owned, period.
Enable the ratio option so that there's a gigantic list of ratios with letters A-D after them. Toy around till you get the one that makes your RAM run at 726MHz...I know it sucks, just bear with me.
Crank the vcore to 1.5V. We might even push it a little more later. Make the VTT 1.3V, and if your DIMMs are full do 1.36V on the MCH, if not do 1.32V.
You should at the very least be able to get 3.2GHz out of that thing 24/7 stable, so do 400FSB with those settings and report back. |
http://nerdrayge.blogspot.com/ |
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TacoBandito
Omega Member
USA
350 Posts |
Posted - 10/27/2009 : 1:06:22 PM
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I actually bought this motherboard because you had such a high opinion of it, that thread is old though, bought this back in march. I have to start heading to work, but when i get back i'll post (hopefully) my new clocks.
And this motherboard is, in my opinion, fan-fucking-tastic. |
You can't trick me with all your computer lingo, young man! Tell me, how many Jiggawatts does this thing have? |
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TacoBandito
Omega Member
USA
350 Posts |
Posted - 10/28/2009 : 11:46:52 PM
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HOLY CRAP! who would have thought that UNDERCLOCKING the ram solves the problem? YOU"RE THE MAN GRMN!
400x8 3.2ghz
ddr2-1066 running at ddr2-800 5-5-5-12
vcore 1.35v
vtt 1.3v
mch 1.32v
load so far is 58C, thats after a good 30 minutes in Prime95. I'm going to bring it up to 3.4 and see how that goes...will post back with results.
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You can't trick me with all your computer lingo, young man! Tell me, how many Jiggawatts does this thing have? |
Edited by - TacoBandito on 10/29/2009 12:10:42 AM |
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TacoBandito
Omega Member
USA
350 Posts |
Posted - 10/29/2009 : 01:22:34 AM
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I'm excited. I was able to get this stable at 3.4. The only issue is that it's load is 69C-70C, but after about 30 minutes I didn't see it hit 71C.
Even still, I think i'm going to back off a bit to 3.3-3.35 and see where that lands me for temps. I think that a 65C-ish load is acceptable, because a hot day can easily accomadate an additional few degrees.
EDIT:
Ok, 3.3 lands me at 66C load. Going to stop there. Thanks so much for the help grmn, i learned a lot about overclocking! |
You can't trick me with all your computer lingo, young man! Tell me, how many Jiggawatts does this thing have? |
Edited by - TacoBandito on 10/29/2009 01:42:15 AM |
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grmnasasin0227
Advanced Member
USA
2587 Posts |
Posted - 10/29/2009 : 06:18:05 AM
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You're welcome, and good job. The rule of thumb for OC'ing that I just taught you is to always get limiting factors out of the way; you ALWAYS want to start with your RAM in 1:1 so that it will never be an issue, and any instabilities come from the CPU itself--then you can go back and tinker with the RAM later. Enjoy the OC!
EDIT: Now that you know you're stable, pull back on the vcore to get rid of unnecessary heat. You'll have to test for stability each time you lower the vcore, but the savings in power and heat will be worth it. |
http://nerdrayge.blogspot.com/ |
Edited by - grmnasasin0227 on 10/29/2009 07:16:23 AM |
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TacoBandito
Omega Member
USA
350 Posts |
Posted - 10/29/2009 : 1:53:59 PM
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| I'm going to. So far 1.40v seems to be stable, but i'll drop it a bit more and see if i can go with that. |
You can't trick me with all your computer lingo, young man! Tell me, how many Jiggawatts does this thing have? |
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CPU Cooling (HS)
