Pentium D 830 problems

[Prune]

I've a Pentium D 830 on a P5LD2 Deluxe motherboard, and I'm having a lot of problems with it. First, at full load on both cores (SETI), the temperature would reach 70*C, before overclocking, with the original heatsink. After watercooling it, overclocked 20% to 3.6 GHz, it again reaches 70*C at full load. WTF??
Still, it is stable at that temperature, at least for now.

A bigger problem came up when I got OCZ2P10002GEEK RAM (DDR2-1000, stock 4-5-4-15), as with the locked 15x multiplier I can't get the RAM near optimal settings. At the current 240 MHz FSB, the highest RAM speed I can select in the BIOS is DDR-800 (3/5); higher FSB would make the CPU totally overheat, considering what I wrote in the first paragraph. I turned on "CPU Lock Free" in the BIOS, but I still don't see a lower multiplier. Is there no way to lower the multiplier at all? In another thread it was implied that Pentium D's can get somewhat lower multipliers, but didn't say how.

 

[orion456]

I've a Pentium D 830 on a P5LD2 Deluxe motherboard, and I'm having a lot of problems with it. First, at full load on both cores (SETI), the temperature would reach 70*C, before overclocking, with the original heatsink. After watercooling it, overclocked 20% to 3.6 GHz, it again reaches 70*C at full load. WTF??
Still, it is stable at that temperature, at least for now.

A bigger problem came up when I got OCZ2P10002GEEK RAM (DDR2-1000, stock 4-5-4-15), as with the locked 15x multiplier I can't get the RAM near optimal settings. At the current 240 MHz FSB, the highest RAM speed I can select in the BIOS is DDR-800 (3/5); higher FSB would make the CPU totally overheat, considering what I wrote in the first paragraph. I turned on "CPU Lock Free" in the BIOS, but I still don't see a lower multiplier. Is there no way to lower the multiplier at all? In another thread it was implied that Pentium D's can get somewhat lower multipliers, but didn't say how.

What's your voltage?

 

[Prune]

Voltage on the CPU is auto. On the RAM I tried Auto, 2.1, and 2.2.

But now a big problem came up. I decided to test with Memtest86+ after Windows crashed and on a couple of occasions I had BIOS errors...
Lots of problems regardless of timings. I then tried each of the two modules (I actually have 2x GEE instead of the dual channel GEEK) one at a time (I bought them separately, one from PCX Computers Canada, the other one from New Egg). One works fine and the other one gives errors at any timings... well, they are the same model, so I guess I have a bad module... now what? After so much trouble and time finding to buy a second module, it doesn't work

 

[orion456]

Voltage on the CPU is auto. On the RAM I tried Auto, 2.1, and 2.2.

Set the voltage at 1.2v and see what OC you can get. At 1.2v your temperatures should be down substantially. Never OC on auto because the voltage is not always the same each time you boot.

 

[Prune]

OK, I'll do that, thanks.
I've noticed on a number of forums people managed to get a 14x multiplier instead of the 15x on the 830. How can that be done? I can't figure it out.

[Edit:] The lowest selectable setting for VCORE in the BIOS is 1.25. I tried setting it to that, and the CPU won't boot. But note I'm running it 20% overclocked. If I run the AI Booster utility, it shows it between 1.26 and 1.28. I'll post my BIOS settings here, maybe someone can see something wrong.

 

[Prune]

FSB.............................240 (This makes the CPU run at 3.6 GHz)
DRAM............................DDR2-800 MHz (Highest I can choose with the above FSB setting)
Performance Mode................Turbo
PCI Express Frequency...........Auto
PCI CLock Synchronization Mode..Auto
Memory Voltage..................2.20 V
CPU Core Voltage................Auto (Allows 1.25-1.70 V)
FSB Termination Voltage.........Auto
MCH Chipset Voltage.............Auto
ICH Chipset Voltage.............Auto
AI CPU Lock Free................Enabled (Doesn't make a difference; the multiplier stays at 15x)
Microcode Updation..............Enabled
Max CPUID Value Limit...........Disabled
Execute Disable Function........Disabled
Enhanced C1 Control.............Auto
CPU Internal Thermal Control....Auto
Intel(R) SpeedStep(tm) Tech.....Auto
Configure DRAM Timing by SPD....Disabled
CAS# Latency..................3 Clocks
RAS# Precharge................3 Clocks
RAS# to CAS# Delay............3 Clocks
RAS# Activate to Precharge....11 Clocks
Write Recovery Time...........3 Clocks (I have no idea what to set this to, I just guessed)
HyperPath 3.....................Enabled
DRAM Throttling Threshold.......Auto
Boot Graphic Adapter Priority...PCI Express/PCI
PEG Buffer Length...............Auto
Link Latency....................Auto
PEG Root Control................Auto
PEG Link Mode...................Fast (I tried Faster but it's not stable with the other settings)
Slot Power......................Auto
High Priority Port Select.......Disabled (Settings available are PCI Express port 5 or port 6)
2nd PCI-E Slot Mode.............Auto (Settings available are x2 and x4)
ACPI 2.0 Support................Yes
ACPI APIC Support...............Enabled

 

[batboy]

Performance Mode........................Turbo
PCI Express Frequency.................Auto
PCI CLock Synchronization Mode..Auto

On these three settings, what are the available options? I would disable turbo, lock PCI-E to 100 MHz, and lock PCI to 33 MHz.

 

[Uqdroma]

I totally concur with turning turbo off. This is an auto OC feature that should always conflict with manual tweaking.

 

[Prune]

Actually I guess it doesn't affect me, since I just noticed in the BIOS it says that manual settings override it. Guess I'm still trying to figure out how some people managed to get a 14x multiplier instead of a 15x on the 830. Posted in several threads at various forums and no one's replying.

 

[batboy]

You might need to update to a newer BIOS before that option is available. I've never used that model motherboard, so I can't help you much.