OCing with a 3xHT

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schuy1

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Nov 25, 2004
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Hello all, I am trying to oc my nforce4 sli chipset with a 300064 using the 3x ht multiplier, I currently have it at 4x ht with a 235fsb=2.12ghz the mem lock on 333
however when I tried to (with what I thought made sense) a 3x ht with a 360 fsb, it wont go past the post screen. I reduced the mem lock to 100 and still nothing, any ideas?

heres my specs
a64 300
gigabyte k8nxp-sli
2x 512 pqi ddr 400 cas 2.5-4-4-7
x2 80gb hitachi sata raid 0
msi 6600gt
all volts at normal
 
I dont know, I mean in theory, 3xht by a 300mhzfsb = 900mhz for the HT, less than that of the original 200fsbxa 5xHT =1000mhz. So on paper it should work, or perhaps I have my parties muddled up here and Im not seeing something.
 
on paper 360x3=1080 which is past the theoretical 1000 limit of 5x200. But my mobo has done quite a bit more than 1000HTT.

what multiplier, voltage, all the goodies needed to determine whether it's ram or cpu.



<b>"These are my thoughts, your mileage may vary."
 
All volts are stock
I did up the vcore by .025, and ram and HT by .1v
The funny thing is using a 4xht its no problem, even a 2x on the ht it works, just no 3x. I am begining to belive this may be a bios glitch?

So as of now its
Vcore-1.400v
HT-Normal
Vdimm-Normal
"Core Voltage" (whatever that is)-normal
300mhz fsb
4XHT multiplier
and a CPU multi of 6x =1.8ghz
Mem lock @ 100 = 200x2 =400mhz ddr
pcie lock @ 100mhz
 
could be right, maybe look at bios updates.

I'm still pretty raw on dividers and such. your trying 360 at 3:5 correct?

So your basically trying to run your ram at 216, what latency and all that jazz are you trying at 216?

I've tried different multipliers on my board with 3HTT, hardly likes anything but 1:1. At least I havn't been able to figure out anything other than 280 at 1:1 that helps me any.

I assume you were using a 8 multi with the dividers? Did you try something other than a 360 at 3HTT?

pick something 1:1 at 3HTT and see if it's the 3HTT setting messing up, or if not, then lower from 360 until it works at 3HTT.

process of elimination would be my route.

<b>"These are my thoughts, your mileage may vary."
 
A 3HTT with stock is the only thing it works with, and as far as performance I noticed (and by proof of benches) an improvment @ a 240 fsb with a 4ht and a 9x multi on the proc

The 3HT doesnt seem to like anything besides stock or a little be over (like 210) And the setting on my ram is at cas2.5, ive tried it at 3 , still a no-go with the 3HT. Oh well, it works with a 4HT and the increased bus. And sadly since this is a newer board there are no more current BIOS available, I have the F6, wich for now and hopefully not much longer the only option besides going backwards, Wich I have tried to no avail. Thanks for the Ideas, Im gonna fiddle with it a little bit more. Let yall know how it goes either way.
 
Well, I am simply going to give up, either the board is faulty, or its the BIOS, but going backwards through the revisions did nothing for me, it will post and run win with a 200 fsb and a 3xht, on the other side heres what im at now
a64300
4xht
9xmulti
fsb@267
giving me a 2.4ghz, on air, no problems
all with stock V's
So now its time to mail gigabyte, and see if they know about this prob, if it is being fixed or if I need to pack it up and send it off. I'll be ticked, spent alot of cash (for me) on it
 
I tried my board at 3HTT 166 (5:4) and can only go as high as 330fsb with that divider.

even using a divider, I think your just trying to push the fsb on the board too high.

my fsb does not go past 330 without a no post screenie, no matter what divider I use. I'm guessing it's just the limit of the bridge. Maybe with better cooling on the N/S bridge maybe I could go higher. I'll play around a bit with it and see what I can max out at.

would speculate that 1:1 memory at 265fsb would result in a faster system than dividing anyways.

<b>"These are my thoughts, your mileage may vary."<P ID="edit"><FONT SIZE=-1><EM>Edited by funkdog on 03/02/05 01:05 AM.</EM></FONT></P>
 
Thing is, the highest it will go period on the 3x dvider is about 210, then it wont go past post. Any other divider and the frequency Ive hit about the same as you 330-350 (depending on multiplier on the proc) it just seems very picky with the 3xht
 
I set up my "old" nf3 ultra board, clocked it @ 300fsb, a 3xht, and a 3x cpu, and it works flawlessly. It must be the board or the bios, anyways Im gonna mail the board merchant, and see if when I find out from giga-byte that it is the board thats faulty, if I can send it back. But in the mean time I have the peace of mind knowing that its narrowed down to one of those two things.
 
That Gigabyte is aweful for overclocking. Anand just tested the 4 current SLI mobos, and look at the max FSB reached on each. The <A HREF="http://www.anandtech.com/mb/showdoc.aspx?i=2358&p=15" target="_new">Gigabyte was 230MHz fsb</A> (HTT) while the DFI did 318 and the MSI did 312. If you beat 230, count yourself luckier than Anandtech.





<A HREF="http://service.futuremark.com/compare?2k3=3400555" target="_new"> My</A> <A HREF="http://service.futuremark.com/compare?2k1=8268935" target="_new">Gamer</A>
 
Hmm.. sorry if i'm digressing... but i would like to know weather a RAID 0 SATA HDD arrangement is really fast or if its insignificant? Are you pleased with it?
 
I belive so, using HDTACH, my system runs about 115mb/s as opposed to my friends similar system that is in a non raid setup and benches near the 90-93mb/s. I personally am pleased, Im one who hates to wait, especially when it comes to my computer, and loading games. I think its worth it, Ive only had a few failures, and they were most likley my fault to begin with. But yea im pleased with the performance.
 
By that I mean blue screens. Never a actual HD hardware failure, just me messing with drivers, and ocing, and tweaking, or at least attepmting to. So I imagine if I (could) just leave things the way they are, I would have never seen the blue screen(s) at all.
 
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