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Need help overclocking my 3500+ venice

post #1 of 12
Thread Starter 
Hi, I'm new here, I'm 13 years old I'm pretty good with computers, but I've been having some trouble overclocking my rig.

First off, my specs:
DFI lanparty nF4 SLI-DR
Athlon 64 3500+ venice (sorry, dont have stepping)
2 X 512 Mb OCZ gold VX DDR500
BFG 7800GT
Seagte barracuda 7200.7 160 Gb
Antec Neopower 480 (non HE)
Stock HSF

Now heres my problem: I cant overclock nearly as high as I think I should. I need 1.6 V to get it 3d stable at 2.55 Ghz. I know I have a stock cooler, but my temps are (generely) ok. Mt stock is idle is:
CPU 32*
PWMIC 36*
Chipset 40*

Stock burn:
CPU 40*
PWMIC 45*
Chipset 45*

Overclocked idle: (CPU: 1.6 V, Chipset 1.6 V, LDT 1.3 V)
CPU 37*
PWMIC 45*
Chipset 45*

Overclocked burn (a little worrying here)
CPU 50*
PWMIC 50*
Chipset 55*

Aside from running @ 1.6 V, my tmps are fine, and even 50* isnt THAT bad (or is it). I dont know why it isnt stable. Even with everything else as low as posible, my CPU always clocks really bad.

But there are other issues. My RAM. I already had to RMA a set because they wouldnt run at recomended timings. They seem to be burning up. I've been running @ 3.3 V max. They wont pass memtest 86+ (even one pass) higher then 255 2-2-2-5. Higher volts dont help. They could run higehr when I first got them, but now they dont. But I was running stock speeds the whole time inbetween. So something seems wrong there.

And my video card. it wont go past like 480/1100. Otherwise it crashes. I've tried both coolbits and rivatuner and ATi tool beta.

Everythign seems to be doing worse then it should. I think it migth be the PSU. Her are my volts from smartgaurdian:
+12V -11.77V
+5.0V -4.97V
+3.3 V -3.26
VBAT 3.0V -3.04V

The +12V is really worrying. But in the BIOS it is around 11.88.

So I really need help here. Maybe I just got a dud in every sinle component but I hope not. If there is any other info needed please ask. Sorry I dont have a multimeter. Oh, and I am running 704-TBA BIOS. Should I flash to teh new DFI BIOS?

I've also heard that 3500+ always clock bad, but someone on anotehr forum has his @ 2.93 Ghz.
post #2 of 12
Hello there and welcome to the forms. first off please fill out our system specs.
quick links->user control->system specs
3.3v is alot of volts unless that memory is UTT BH-5. and those are some tight timings for it at that speed.
BlackMesa
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BlackMesa
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post #3 of 12
First off, let me say that's a great rig for a 13 year old. I'm assuming you didn't pay for it all yourself (that's gotta be a $1000 PC), your parents are nice.

now, onto your OC...

With your CPU, You'll probably need a new cooling solution before you can push it much farther. I'd reccomend the Thermaltake Big Typhoon, it's $55 at newegg. What I need to know is:
HTT (FSB) speed
HTT multiplier
CPU multiplier
FSB:RAM Divider
RAM timings
post #4 of 12
http://www.dfi-street.com/forum/showthread.php?t=20823

Try looking here, there are some good tips if you keep reading about how to find your memory max and your cpu max etc.

You have to remember with the DFI and a64 boards about HTT. This is calculated using the LDT/FSB ratio x your FSB

For a 3500 (which I have) the HTT should be within the range 1600 -2000. The link above explains this in detail. I would try first off dropping your ldt/fsb ratio to 4x, reboot and see how it compares. what this will be doing is 4 x fsb (say 225) = 900 x 2 =1800 within range.

Also drop the Dram speed, I am flying along at 133 even though my ram is 200, by manipulating the maths I'm still getting close to 200 out of it but becauise the ratio is lower it is more stable.
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post #5 of 12
Thread Starter 
Quote:
3.3v is alot of volts unless that memory is UTT BH-5. and those are some tight timings for it at that speed.
I do have UTT http://www.ocztechnology.com/product...c_4000_gold_vx

Quote:
HTT (FSB) speed
HTT multiplier
CPU multiplier
FSB:RAM Divider
RAM timings
My last stable overclock was 2.55 Ghz,
HT speed 255
HTT multi 4X
CPU multi 10X
Divider 1/1
RAM DDR510 2-2-2-5 3.3V (higher volts dont help)

Quote:
Try looking here, there are some good tips if you keep reading about how to find your memory max and your cpu max etc.
I already did that, like I said I found all the variables seperatly.

Quote:
For a 3500 (which I have) the HTT should be within the range 1600 -2000. The link above explains this in detail. I would try first off dropping your ldt/fsb ratio to 4x, reboot and see how it compares. what this will be doing is 4 x fsb (say 225) = 900 x 2 =1800 within range.

Also drop the Dram speed, I am flying along at 133 even though my ram is 200, by manipulating the maths I'm still getting close to 200 out of it but becauise the ratio is lower it is more stable.
Already done all that... I've pretty much tried everything.

Basicly what I'm wondering is why I need so many volts to get to that speed.
post #6 of 12
on that website, it says the memory can do 2-2-2-8 at 250mhz at 3.3v.
2-2-2-5 @255 may just be too much for them. try the recomended settings and run memtest. and see if that helps your stability abit
EDIT: it says also on that site that you can run the memory up to 3.5 volts without invalidating their OCZ Lifetime Warranty. thats pretty nice
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BlackMesa
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post #7 of 12
Ya I'm thinking its your RAM to, I would recommend using clockgen and a small multiplier to make sure its not your memory though.

Run the prime blend test and bump up your frequency, you can also use A64 tweeker. Once you think you have something stable, then go into your BIOS and try it.
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CPUMotherboardGraphicsRAM
Opteron 165 CCBWE 0602 DFILANPartyUTnF4Ultra-D eVGA 7800gt G.Skill 2x1 gig 
Hard DriveOSMonitorKeyboard
74Raptor+120seagate WinXP SP2 17" CRT Gateway Cheapie 
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post #8 of 12
also try dropping your HTT multiple to 3x b/c 4x255=1020 and even just that little bit over 1000 can cause stability issues
BlackMesa
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BlackMesa
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post #9 of 12
you could also try bumping down your vdimm, my memory is at 255 3-4-4-8-2T, i know its different but my vdimm is only at 2.6 and i can closk my memory at 275 just fine
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Hard DriveOptical DriveOSMonitor
wd 250gb asus dvd dl +_rw windows vista 32 ultimate dell 17" lcd 
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post #10 of 12
Yeah, loosen up your timings to get your RAM to push them farther, those timings are insane for that speed.
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