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post #1 of 5 (permalink) Old 05-11-2004, 05:38 AM - Thread Starter
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Hi all...New here as well as to overclocking. I guess I'll start with what I just built and see what if you all have any suggestions.

Xaser III Aluminum LanFire Case
Abit IC-7
Intel Pentium 4 2.8 Prescott 800MHz FSB 1MB Cache
SimpleTech Nitro Matched Pair 256MB Dual Channel DDR 433 (512 Total)
Chaintech GeForce 5700 Ultra 128MB
37GB Raptor 10,000 RPM SATA Hard Drive
120 GB 7200 RPM PATA Hard Drive
52X CDRW
16X DVD ROM

I have tried to use the softmenu to overclock the chip to 3GHZ and step up the ram but if I do anything the SATA Hard Drive (Boot Drive) disappears and I get Fail to load OS message. If I go back and change everything back it resets and boots fine. I haven't stepped up the voltages though and I have a feeling that is maybe the problem.

Any help would be appreciated. I have the original Intel HS/Fan so I don't want to go to high just yet Any input on a HS/FAN combo under...say 60.00 would be appreciated also.

Thanks!!
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post #2 of 5 (permalink) Old 05-11-2004, 12:14 PM
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Ya you need to up the voltage. Bring it up to 1.6 or 1.65V. Don't go higher than 1.65V with stock cooling. That should solve you're problem with hdd's missing. I had the same problem but with a DFI board. Go figure, the same engineers that moved over from ABIT to DFI brought over the same problems. hehe...

You have $60 to spend? Get a Thermalright SP-94 HSF with a vantec stealth or panoflow fan if you don't like loud noise. Vantec tornado or Delta fan if you can stand the noise and have a fan controller to turn it down when not in heavy use.

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P4 3.0C @ 3.6 Stable
Idle 27C/Load 38C
Themralright SP-94 (Cooling CPU)
Swiftech MCX159-P (Cooling NB)
1 gig OCZ EL Gold PC4000
DFI Lanparty Pro875B rev. B1
ATI Radeon 9800XT @ 440/762
2 x WD Raptors (Stripe 0) 36 Gigs
Plextor 708A CD/DVD burner
Coolermaster Aerogate I
Coolermaster Cooldrive 4
Coolermaster Musketeer I
Matrix Orbital MX222 LCD
Mitsumi 6 in 1 Memory Card Reader/ Floppy
Soundblaster Audigy 2 Platinum EX
X-Superalien Case
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post #3 of 5 (permalink) Old 05-11-2004, 06:06 PM
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What are the numbers that you have in the BIOS, like the fsb speed.

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post #4 of 5 (permalink) Old 05-11-2004, 07:49 PM - Thread Starter
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Well CPU FSB is at 800MHz, DDR says it defaults to 200/200 (400MHz?) I changed the voltage and it didn't make any difference. Still came up and told me OS Failed to Load...that is because when OC the cpu and change the ram timing (2.5, 7, 4, 4) the Raptor disappears. I dunno...??? There is a whole lot of voltage options for the CPU and the RAM...not to mention the AGP blah...blah...blah. Any other ideas?
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post #5 of 5 (permalink) Old 05-13-2004, 10:48 AM
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No the FSB is only 200Mhz. P4's are quad pump (Quad data rate) therefore 4 x 200 = 800. DDR400 is double pump (Double data rate) therefore
2 x 200Mhz = 400Mhz. At 1:1 ratio or CPU FSB = Memory Bus, 200Mhz:200Mhz. You will not be able to overclock your CPU at 1:1 ratio very much because the rated speed of your memory is 200mhz FSB. You can increase the vdimm (Memory voltage) to try and oveclock your memory to get more FSB but still you won't be able to push your cpu much. What you need to do is change your CPU to Memory ratio to 5:4 ratio or DDR320.

Best thing to do is reset all your settings back and then change the ratio to 5:4, then put your Vcore at 1.65V and your Vdimm at 2.8. Then slowly bring up your FSB. Don't forget to make sure your AGP/PCI is locked to 66/33.

If your drives still disappear after overclocking this way, try updating your bios/raid drivers.

xBuddhax biggrin.gif

P4 3.0C @ 3.6 Stable
Idle 27C/Load 38C
Themralright SP-94 (Cooling CPU)
Swiftech MCX159-P (Cooling NB)
1 gig OCZ EL Gold PC4000
DFI Lanparty Pro875B rev. B1
ATI Radeon 9800XT @ 440/762
2 x WD Raptors (Stripe 0) 36 Gigs
Plextor 708A CD/DVD burner
Coolermaster Aerogate I
Coolermaster Cooldrive 4
Coolermaster Musketeer I
Matrix Orbital MX222 LCD
Mitsumi 6 in 1 Memory Card Reader/ Floppy
Soundblaster Audigy 2 Platinum EX
X-Superalien Case
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