Cannot OC chaintech vnf4 ultra

[poncherelli2]

I just put together a new rig: Seasonic S12 430W, VNF4U, 250gb sataII HDD, 3000+ venice, 2x1gb corsair vs, with zalman 7700alcu. Temps have not been a problem, nor has inadeqaute power. I flashed the bios to v4.0 which people says is the best right now.

I have the HTT mult set to 3x in the bios. I have memory set at 1:2 (100mhz). The pci/pcie are locked at 33/100mhz each.

I open clockgen in windows and set the cpu multiplier to 5x slowly notch up the HTT. It usually craps out around 220, sometimes up to 230+ but then craps out really quick. This is all without even running prime95 or anything.

The only thing I can think of is either the sata isnt locked (ive tried in ports 1-4), or something is wrong with the memory:

I ram memtest86+ twice on boot and once it found an error as follows:
test: 7
Pass: 0
Failing Address: 00011865790 - 280.3MB
Good: df09ad18
Bad: df09ad18
Err-Bits: 40000000
Count Chan: 1

The second time through no error came up. I don't know if this is a big deal or not.

 

[BTA]

memory timings? voltages?

 

[Spineshank]

NF4 has all the SATA ports locked. It was NF3 that had 1 and 2 unlocked.

 

[spinejam]

My A64 3000+ Venice Stepping:

A643000+ Venice @ 2700MHZ
LBBLE 0521 CPMW
300X9
DDR 2.5 3 3 6 1T @400MHZ
VCore 1.6
VDimm 2.8
Chaintech VNF4 Ultra w/ 05/18/05 Bios

 

[n7]

Use the bios for OCing.

 

[designit]

Originally posted by: poncherelli2
I just put together a new rig: Seasonic S12 430W, VNF4U, 250gb sataII HDD, 3000+ venice, 2x1gb corsair vs, with zalman 7700alcu. Temps have not been a problem, nor has inadeqaute power. I flashed the bios to v4.0 which people says is the best right now.

I have the HTT mult set to 3x in the bios. I have memory set at 1:2 (100mhz). The pci/pcie are locked at 33/100mhz each.

I open clockgen in windows and set the cpu multiplier to 5x slowly notch up the HTT. It usually craps out around 220, sometimes up to 230+ but then craps out really quick. This is all without even running prime95 or anything.

The only thing I can think of is either the sata isnt locked (ive tried in ports 1-4), or something is wrong with the memory:

I ram memtest86+ twice on boot and once it found an error as follows:
test: 7
Pass: 0
Failing Address: 00011865790 - 280.3MB
Good: df09ad18
Bad: df09ad18
Err-Bits: 40000000
Count Chan: 1

The second time through no error came up. I don't know if this is a big deal or not.

First of all)you should always download the latest BIO as chaintech recommends.
2)Flash Bio in DOS not window- Go to this Link shows you how
3) after flashing new BIOS you should clear CMOS before rebooting. follow above link for instruction.

4)After you have succecfully installed new BIOS , then put your overclocking items to"auto" in bios-if you are tweeking in winodws instead of bios way.
But best is to oc in bios. Follow this instruction in how to overclock.