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ASRock 939 Dual SATA II BIOS OC options help - Page 6

post #51 of 118
I forgot that my memory is Dual Channel. So does that mean that the memory speed is HHT/mem divider*2 (for double date rate)*2 (dual channel)? if that's the case there's no way i can get it down to 200mhz.
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post #52 of 118
Quote:
Originally Posted by ketiko
Ok, I'm sorry. I should have read up before posting. That just made me look dumb. So here is how I had my settings when it blue screens:

HTT=267
Mem=133
Timings=2.5-3-3-10-2T
NB=600x16bit
SB=600x16bit

The math says that should work. 267 x .66 = 176 which is under 200mhz that my DDR400 will run. Is it just that's too slow for the memory? I am going to try pumping up the HTT to 303 which gives ms 2.7 (303 x 9) and puts the memory at 200Mhz (303 x .66 = 200).

Question:

Will a HTT of 303 cause problems? That's huge isn't it.
This doesn't affect my video card if I have it locked at 100mhz right?
Is doing this even right at all? I am assuming that the memory needs to run closer to 200 and that's why it's not working at 176.

Thanks
First ketiko, you need to rework your memory math a bit. Remember what I said earlier in this thread - dividers are set off the CPU's multi. Take your reference divider (133/200) - you get 0.665. However, you need to divide your CPU's multi by the integer that will get you closest, but not over, that amount, which in this case is 14, giving you 9/14, or ~.643. So multiply your FSB (267) by your divider (9/14), and your mem speed is actually 171.6, not 176. This is the easiest way to work it out, and doing .5 multis this way comes very naturally - however, you won't be working with .5 multis on that board anyway.

By all accounts, it would appear that you have those settings set properly - unfortunately, without a vcore setting, and the revision of your memory controller (use CPU-Z for that), I couldn't tell you much. Get those three things, and I might be able to get you moving. I'm assuming you have vdimm set to "high" already, so that's 2.7V. If you're trying to run your proc at 2.4GHz, you'll need vcore as high as you can set it (you shouldn't need to do that vcore mod for that). I'm assuming for the moment that you have a rev E6 Venice - and from what I can see on forums, they haven't been the best overclockers, so that might be your limit if your vcore is already on 1.45. If it is, I'd say back it down just a bit, and see where she takes you. If you have to go down to 250 or below, remember to pull your LDT multi back up a notch.
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post #53 of 118
Quote:
Originally Posted by Taishan
By all accounts, it would appear that you have those settings set properly - unfortunately, without a vcore setting, and the revision of your memory controller (use CPU-Z for that), I couldn't tell you much. Get those three things, and I might be able to get you moving. I'm assuming you have vdimm set to "high" already, so that's 2.7V. If you're trying to run your proc at 2.4GHz, you'll need vcore as high as you can set it (you shouldn't need to do that vcore mod for that). I'm assuming for the moment that you have a rev E6 Venice - and from what I can see on forums, they haven't been the best overclockers, so that might be your limit if your vcore is already on 1.45. If it is, I'd say back it down just a bit, and see where she takes you. If you have to go down to 250 or below, remember to pull your LDT multi back up a notch.
Hey thanks for clearing that up for me. I didn't realize that's how it runs. Well here are my cpu-z screen shots. My vcore in the bios only goes to 1.45, so you are right that I have maxed that out. And I do have the vdimm on HIGH.


I have ran mem86 for 12+ hours several times and get no errors. Everything had been working fine since my last post. I think it's been a couple monthes. I looked through the Window's system logs but couldn't find the exact error for the random restarts. My cpu temp is stable at 36*C unloaded and 43*C loaded.



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post #54 of 118
Quote:
Originally Posted by ketiko
Hey thanks for clearing that up for me. I didn't realize that's how it runs. Well here are my cpu-z screen shots. My vcore in the bios only goes to 1.45, so you are right that I have maxed that out. And I do have the vdimm on HIGH.


I have ran mem86 for 12+ hours several times and get no errors. Everything had been working fine since my last post. I think it's been a couple monthes. I looked through the Window's system logs but couldn't find the exact error for the random restarts. My cpu temp is stable at 36*C unloaded and 43*C loaded.
I retract my previous assumption that you had an E6 - you actually have an E3 Venice, notorious for being probably the best overclockers in the Venice series. Glad you posted your CPU-Z stuff so I know what proc you've got. First, I'd like to blame your power supply - it seems incredibly weak, for starters. Get yourself something with more amps on the 12V rail, probably something with dual 12V rails to get there (an Antec TPII, in the range of at least 400W, should do just fine). Second, I see you have 2GB of ram - are they across 2 dimms or 4?
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post #55 of 118
The dimms are spread over 2, 1gb each. Why do you blame the power supply? I know it's just a crappy stock one. If I get a new supply my bios still limits the vcore to 1.50 or so, I guess I'm a little lost on the reason for that? Hey, thanks a million for helping me!!
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post #56 of 118
While your voltage will still be the same, the amperages on the rails will be vastly different. If your PSU doesn't have enough amperage to run all your hardware, you will have all kinds of crazy malfunctions - sudden, random restarts are one symptom. It could be that your ram is pissed off, but I highly doubt it, since it's already running under stock speeds, and it's passing Memtest every time.

I'm going to rule out that it's a software issue, since by returning everything to stock speeds, it solves your problem - that's my first clue that it's something about your hardware. However, when you overclock your machine, you're going to be pulling more current off that PSU - which might be going over it's limit. If you have a friend with a larger PSU that's willing to help out, I'd say give it a shot. I am continually amazed at the weird crap that happens when you have a weak PSU - I've seen them literally dozens of times - probably why I'm so careful about what PSUs that I use.

The PSU is the one piece of hardware that's a glaring warning sign to me from what you have listed in your profile. Go into the bios, go to the health monitor, and write down your voltage readings from the +3.3V, +5V, and +ATX12V rails, and post them. If possible, try a new PSU (like I said, the Antec TP2 400W or up should do the trick).
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post #57 of 118
That makes sense to me. It has to be hardware, because I've run memtest and prime95 for 12+ hrs each and no problems. And I have the same random reboots in linux. So it's not windows. This makes sense to me. I'll post my volts tonight. What do I need to look for in a psu, 400W and Dual 12V you said, but is there any other real requirements? I say this one at newegg http://www.newegg.com/Product/Produc...82E16817148027
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post #58 of 118
Oh, I also wanted to ask you about that vcore mod. It seems pretty safe and everyone says they can crank it up to 300HTT. Would you suggest that? I'ld have to put thermal paste on and get a better heatsink. But it would be amazing to get up to 2.6. I'm so suprised at the different in fps in games just between stock 1.8 and 2.4 oc.
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post #59 of 118
That power supply that you linked to, although the 3.3V and 5V rails looked a little low to me to be rated a 500W PSU (my 480 Antec has much better amperages than that, and it's rated 20W lower...), but it looks like it'll have fairly good 12V amperage.

About the vcore mod, first things first - let's fix the problem you're having. Doing the vcore mod when your machine is crapping is only going to exacerbate the issue.

As for how to do it, four different variants are very, very well documented on OCW (pictures are included for the ignorant, like me ). It's heinously easy - I did variant one, which changes 1.075, 1.100, 1.125, and 1.150 to 1.475, 1.500, 1.525, and 1.550, respectively. Just a word of caution that the 1.075 setting the machine will not post the first boot, and then you'll see your voltage setting back on auto - the bios will kill this setting, since it's under minimum vcore rating for the chip. So your new usable settings would be 1.100 (1.500 actual), 1.125 (1.525 actual), and 1.150 (1.550 actual).
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post #60 of 118
Hey so here's my volts in the bios

1.467
3.338
5.053
11.856

So if it's not the power supply do you have any other ideas?
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