m-atx c2d overclock

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chemchem

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Jun 23, 2007
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Unfortunately I jumped into buying my computer without doing enough research but I wanted to do small form factor requiring me to get a m-atx board and after seeing overclocking options were limited I just went and bought whichever board had best reviews on newegg. Right now I got a e6600 and this lame mobo, p5b-vm do (should stand for DOH! why did i buy this.) I went with corsair 4-4-4-4-12 ddr800 ram but I don't think the system will run stable at those speeds because the ram is 2.1 voltage and the mobo won't budge from 1.8 (stupid huh). I'm somewhat dissapointed but I suppose I'll stay with the small form factor since I already bought all this and I don't think I can RMA it at this point. Should I RMA for slower but properly voltaged ram to try and overclock the cpu or should I try to underclock this ram and overclock the cpu then? And when I'm underclocking the ram, whats the difference between underclocking its clock speed and its timings?
 
Unfortunately I jumped into buying my computer without doing enough research but I wanted to do small form factor requiring me to get a m-atx board and after seeing overclocking options were limited I just went and bought whichever board had best reviews on newegg. Right now I got a e6600 and this lame mobo, p5b-vm do (should stand for DOH! why did i buy this.) I went with corsair 4-4-4-4-12 ddr800 ram but I don't think the system will run stable at those speeds because the ram is 2.1 voltage and the mobo won't budge from 1.8 (stupid huh). I'm somewhat dissapointed but I suppose I'll stay with the small form factor since I already bought all this and I don't think I can RMA it at this point. Should I RMA for slower but properly voltaged ram to try and overclock the cpu or should I try to underclock this ram and overclock the cpu then? And when I'm underclocking the ram, whats the difference between underclocking its clock speed and its timings?
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Right now I got a e6600 and this lame mobo, p5b-vm do (should stand for DOH! why did i buy this.) I went with corsair 4-4-4-4-12 ddr800 ram but I don't think the system will run stable at those speeds because the ram is 2.1 voltage and the mobo won't budge from 1.8 (stupid huh).
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I've had the P5B-VM DO for quite a while running an e6600, 2 GBs PC6400, 3 hard drives, dual boot windows xp/Vista HP 32, etc. I returned an ASUS PVB-VM to get this board instead. You have the 965g chipset, the board performs fine. As far as the BIOS voltage adjustment you should be fine at 1.8v, the Corsair you have should boot up fine. use 1 DIMM in slot 1 to get to BIOS if you have any problem. I updated the BIOS to the latest version and I had no problems with ANYTHING!
 
are you running 0603 or the beat version of the bios? could u give me a few tips at overclocking on this board or give me a push in the right direction?
 
I'm not at that system right now. 0603 sounds right, the latests non-beta BIOS. I'm trying to post a link to the performance of the 965g compared o the 965p chipsets, but the site is down right now. I'll try and post it later. Do you have the system running currently with the Corsair PC6400?
 
the ram is in there, i got it running 5-5-5-5-12 cause 4-4-4-4-12 crashed a couple times randomly
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I am using ADATA PC6400 1.8v at 5-5-5-12. This RAM will not run at 4 CAS on the board, crashes out. I have some G. skill PC6400 2.0v 4-4-4-12 I want to try, but the machine is a backup to my q6600. The ASUS message boards are all over the P5B-VM not having ANY voltage adjustment in BIOS. This is somewhat typical for a mATX board. The one option the ASUS 965g does not have that their ATX 965 boards have is 8 phase voltage regulators, yours are only 4 phase I believe. Anyway, I'm trying to get the link up to you regarding the performance of your chipset in relation to the ATX 965p. The difference is not as great as you are so disgusted with.
 
If you have to have 4 CAS, try something like 4-8-4-15. Otherwise use 5 CAS with the 4-4-12. I haven't tried it. I'm fine with 5-5-5-12. I had planned on using my G. Skill PC6400 2.0-2.1v at 4-4-4-12 at some time though.
 
thanks alot for the help, it appears i gotta kick down the clock speed of the ram though also, i can push the cpu when its at the 500 speed but i've seen it crash at 600 and 800
 
right now i'm running the ram at 800 5-5-5-5-12, unfortunately i just ordered my video card now after realizing even tho i didn't have the money now i might as well put it on my cc to push my system and get its full worth. whats the difference between the speed of the ram and the timing tho? like which is more important and what effects what?
 
thanks alot for the help, it appears i gotta kick down the clock speed of the ram though also, i can push the cpu when its at the 500 speed but i've seen it crash at 600 and 800
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Your RAM is rated at 800 mhz. 6.4 GB/second transfer rate. If you are setting the RAM clock speed at 500 in BIOS your RAM is Clocking 1000 mhz. before the increae to your CPU via upping your FSB. Of course it will crash. You are booting up at 600 mhz RAM speed setting in BIOS? You RAM is running at 1200 Mhz. Before you even consider you overclock to your FSB. Yeah, set the RAm frequency to 400 if you are going to run the FSB way up there.
 
right now i'm running the ram at 800 5-5-5-5-12, unfortunately i just ordered my video card now after realizing even tho i didn't have the money now i might as well put it on my cc to push my system and get its full worth. whats the difference between the speed of the ram and the timing tho? like which is more important and what effects what?
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Your RAM can be clocked independently from your FSB through the RAM frequency setting in BIOS. However, when you crank up your FSB, every component on your system (your system bus) receives the increase or overclock including the RAM. Be sure and lock your PCI Express frequeny at 100. If your are pushing the FSB to extreme overclock, increase the PCI EF to 110 to 115.
 
hmm interesting, i never actually got all the info down pat on my last athlon xp when i was OCing that. ok so if the rams rated to run 800 you wanna kick it down so when the FSB goes up its below its max. i don't seem to see the PCI EF option anywhere.
 
hmm interesting, i never actually got all the info down pat on my last athlon xp when i was OCing that. ok so if the rams rated to run 800 you wanna kick it down so when the FSB goes up its below its max. i don't seem to see the PCI EF option anywhere.
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Your Corsair (XMS?) is rated at PC6400 800 mhz., but it will likely run over 1000 mhz. near 1066 mhz. So yes, if you set the RAM frequency in BIOS to 500 the RAM immediately runs at double that to 1000 mhz right off the bat on boot up. Then...in addition you are increasing the FSB to get the CPU to run faster and that FSB increase is adding on to the already 1000 mhz. your RAM is running at. Sure the system will crash and not boot set there.
 
oh wow. i don't see a option for 400 tho, also i don't see the pci speed thinger.
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You can set the RAM to AUTO if you have to. Then push the FSB and get the e6600 cranking upward from it's stock 2.4. The RAM will follow, and apparenty all the way to 1000 mhz. Download CPUZ and check the CPU and memory tabs to check where you are at with your overclock. I'll try and get the link up later about your 965g chipset performance.

CPUZ:

http://www.cpuid.com/cpuz.php
 
hey man thankts alot for being helpful, its so often you see something like

HEY WHY DIDNT YOU USE GOOGLE OR THE SEARCH FUNCTION!?

i did try google but didn't see much matx ocing info tho.
 
Right. At default in BIOS. That 400 mhz. is doubled because or DDR (double data rate), so it's running at pC6400 800 mhz. Download CPUZ and check under the memory tab there. So, you were setting the RAM frequency at 500 in BIOS and running at 1000 mhz plus the overclock to your FSB (cpu). The RAM is not going to run much over 1000 mhz.
 
I'm going to an Asian restaurant in a few. I know a great Friday night spot. But, yeah glad I could help. For me, when I use my q6600 I am so happy with it, I am not concerned with overclocking it for my needs. I just enjoy it.
 
It's there, I have the P5B-VM DO. Could be as you say. I'll get that link up later and you will see your 965g ASUS will do all right overclocking. It has the 965 chip same s the ATX 965 boards. It runs almost the same performance wise, only slightly less.
 
upon rebooting the settings i'm setting the ram to are the model settings not the speed, so when i had it set to 800 it was making it 400.
 
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