Overclocking Pentium D820

silverchair · 13th Sep 2007, 10:35 AM

hey guys just need some help and advice:

i have some old stuff and i was trying if i can get overclock to these:

i have pentium D820, Asus p5b-vm DO motherboard and corsair 2GB pc-5400 ddr2.

i tried to overclock the proc. (stock at 2.8ghz) and the limit i can use is 235mhz fsb (from 2.8ghz to 3.2ghz).

my question is, is there any posible way to increase more or the motherboard can only overclock up to 235mhz only.

Chai · 13th Sep 2007, 04:24 PM

You really have to try and tell us the result. Since you already know how to overclock, it's all about trial and error.

Adrian Wong · 13th Sep 2007, 06:04 PM

Yeah, Chai's right. It's really all about trial and error. As for the motherboard capability, well, that's really limited by the motherboard clock generator.

You can't change the range of available clock speeds, unless they are hidden. Then you will need to either flash the motherboard BIOS to the latest version (which hopefully allows you access to the full range), or you have to hack the BIOS (no easy task).

The_YongGrand · 13th Sep 2007, 06:46 PM

Quote:

Originally Posted by silverchair

hey guys just need some help and advice:

i have some old stuff and i was trying if i can get overclock to these:

i have pentium D820, Asus p5b-vm DO motherboard and corsair 2GB pc-5400 ddr2.

i tried to overclock the proc. (stock at 2.8ghz) and the limit i can use is 235mhz fsb (from 2.8ghz to 3.2ghz).

my question is, is there any posible way to increase more or the motherboard can only overclock up to 235mhz only.

Not sure about the bus speeds, but you can check the multipliers (usually locked, but give it a try first) or the memory speeds.

I once did a Celeron D 347 (3.06) to 3.8GHz, and it is 40% faster! But 40% hotter!!

silverchair · 15th Sep 2007, 10:03 AM

well guys i cannot get more higher on 230mhz, cause when i try more than that, my Operating system got a message, that my OS has expired or has a invalid serial key. ist posible when you made too much overclocking?

and one more thing, when trying to make it more higher, should i increase also the vcore? or just leave it to auto?

Adrian Wong · 17th Sep 2007, 01:24 PM

Hmm.. Sounds like memory or data corruption.

Well, if you are hitting a wall, increasing the vcore can help. But make sure your cooler can handle the additional heat.

13th Sep 2007, 10:35 AM	#1 (permalink)
silverchair Just Started Join Date: 21 Mar 2007 Location: Montreal Posts: 38 Reputation: 15 Rep Power: 0	Overclocking Pentium D820 hey guys just need some help and advice: i have some old stuff and i was trying if i can get overclock to these: i have pentium D820, Asus p5b-vm DO motherboard and corsair 2GB pc-5400 ddr2. i tried to overclock the proc. (stock at 2.8ghz) and the limit i can use is 235mhz fsb (from 2.8ghz to 3.2ghz). my question is, is there any posible way to increase more or the motherboard can only overclock up to 235mhz only.

13th Sep 2007, 04:24 PM	#2 (permalink)
Chai Administrator Join Date: 6 Oct 2002 Location: Maranello Posts: 28,128 Reputation: 4649 Rep Power: 82	You really have to try and tell us the result. Since you already know how to overclock, it's all about trial and error. __________________ Chai (Contributor & Forum Admin) http://www.techarp.com/

13th Sep 2007, 06:04 PM	#3 (permalink)
Adrian Wong Da Boss Join Date: 10 Oct 2002 Location: In front of my ASUS F8V notebook! Posts: 33,150 Reputation: 3730 Rep Power: 78	Yeah, Chai's right. It's really all about trial and error. As for the motherboard capability, well, that's really limited by the motherboard clock generator. You can't change the range of available clock speeds, unless they are hidden. Then you will need to either flash the motherboard BIOS to the latest version (which hopefully allows you access to the full range), or you have to hack the BIOS (no easy task). __________________ Dr. Adrian Wong Tech ARP \| Blog @ Tech ARP \| The Free Trade Zone DYKT : The only offshore account I have is at the sand bank? We need PROGRAMMERS and TECHNICAL WRITERS! Contact us if you are a hot shot programmer or technical writer! My items for sale : 50x SD Card \| Memory Stick PRO \| Cyclone Energy Saver \| Seiko SS watch \| Tiger/Carlsberg beer jugs \| Travel Speakers \| Motorola V600 \| Nokia N90 SOLD! \| New Lowepro Mini Trekker AW Other items for sale @ the FTZ : Zalman CNPS9500 LED @ $20 \| Zalman CNPS7700 Cu @ $20 \| Zalman CNPS7000 Cu @ $20 \| Swarovski bracelet watches \| Dell 17" LCD \| Hi-Fi speakers \| English DIVX movies \| HP LaserJet toners! \| Office chairs

17th Sep 2007, 01:24 PM	#6 (permalink)
Adrian Wong Da Boss Join Date: 10 Oct 2002 Location: In front of my ASUS F8V notebook! Posts: 33,150 Reputation: 3730 Rep Power: 78	Hmm.. Sounds like memory or data corruption. Well, if you are hitting a wall, increasing the vcore can help. But make sure your cooler can handle the additional heat. __________________ Dr. Adrian Wong Tech ARP \| Blog @ Tech ARP \| The Free Trade Zone DYKT : The only offshore account I have is at the sand bank? We need PROGRAMMERS and TECHNICAL WRITERS! Contact us if you are a hot shot programmer or technical writer! My items for sale : 50x SD Card \| Memory Stick PRO \| Cyclone Energy Saver \| Seiko SS watch \| Tiger/Carlsberg beer jugs \| Travel Speakers \| Motorola V600 \| Nokia N90 SOLD! \| New Lowepro Mini Trekker AW Other items for sale @ the FTZ : Zalman CNPS9500 LED @ $20 \| Zalman CNPS7700 Cu @ $20 \| Zalman CNPS7000 Cu @ $20 \| Swarovski bracelet watches \| Dell 17" LCD \| Hi-Fi speakers \| English DIVX movies \| HP LaserJet toners! \| Office chairs

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15th Sep 2007, 10:03 AM	#5 (permalink)
silverchair Just Started Join Date: 21 Mar 2007 Location: Montreal Posts: 38 Reputation: 15 Rep Power: 0	well guys i cannot get more higher on 230mhz, cause when i try more than that, my Operating system got a message, that my OS has expired or has a invalid serial key. ist posible when you made too much overclocking? and one more thing, when trying to make it more higher, should i increase also the vcore? or just leave it to auto?