intel 805 D 3.6ghz +pc3200 ram possible?

[javimars]

is it possible to use pc3200 ram and the intel 805 D at 3.6ghz?

 

[RichPLS]

DDR2?

 

[javimars]

sorry yeah dd2

 

[javimars]

errr i meant DDR2

 

[WhatUsername]

in short no.


no you can't.

 

[plewis00_uk]

Not true.

There are boards out there based on the Intel 865 chipsets which support socket 775 processors. As a result of using this chipset, you get PCI, AGP and DDR1 support (i.e. PC3200 will work). Make sure the board you are getting does support dual-core processors though, specifically the 805D as you may need a late revision or BIOS update before it will work. But it can definitely be done. There may be other chipsets which it will work with too but the 865 is one of the best known, performs well and is cheap now.

 

[WhatUsername]

You are ignorant. Don't get his hopes up, what preformance increase is he gonna see from ddr2 400???

 

[jamos]

heres a mobo that will satisfy your needs

mobo for 805d and ddr2

 

[plewis00_uk]

The only person around here being ignorant around here is you. No-one mentioned anything about performance increases, he simply asked if it was possible, which it is. If he can find DDR2-400 RAM then there is no real reason why it won't work.

 

[SidVicious]

The only person around here being ignorant around here is you. No-one mentioned anything about performance increases, he simply asked if it was possible, which it is. If he can find DDR2-400 RAM then there is no real reason why it won't work.

See the title, "intel 805 D 3.6ghz +pc3200 ram possible?"

While he meant for PC2-3200 instead of PC-3200, the important part is 3.6GHz, which implies an intention to overclock up to that frequency.

DDR2 is quad pumped (well, double pumped like DDR but the controller access two banks at a time, just like dual channel DDR IIRC & AFAIK), regardless, the "real" FSB on which PC2-3200 is meant to run at is 100MHz.

In order to achieve 3.6GHz on a 805 (20 x multiplier ), you would have to reach a FSB of at least 180MHz, that won't be possible unless some high end PC2-5200 or standard PC2-6400 is used.

Running the memory at a ratio is possible but doing that would severly starve the CPU of memory bandwidth, pretty much nullifying any performance gains from the overclock.

 

[plewis00_uk]

No one mentioned anything about performance - he asked 'is it possible'. The answer being yes. An almost 1Ghz overclock is NOT going to be 'nullified' by PC3200 speed RAM. Sure, reduced memory bandwidth is going to take it's toll.

So yes, I did read the title and I'm saying, it is possible. And yes, I am also well aware of how DDR2 works and that he'd need to run a divider to use it at that kind of speed.

 

[javimars]

thank you all of your replies. i have 2gigs of pc3200 and wanted to do the intel 805 oc to 3.6ghz or better, but i guess i cant. i also thought that my ram runs at max 200 fsb. anyways thank you all

 

[plewis00_uk]

What brand, type and model number is the RAM? It might help put this issue to rest. Are you sure it is DDR2, because even with an 805D and everything at stock, it wouldn't run (the RAM would be running at DDR2-533 speed) without dividers.

 

[SidVicious]

No one mentioned anything about performance - he asked 'is it possible'. The answer being yes. An almost 1Ghz overclock is NOT going to be 'nullified' by PC3200 speed RAM. Sure, reduced memory bandwidth is going to take it's toll.

So yes, I did read the title and I'm saying, it is possible. And yes, I am also well aware of how DDR2 works and that he'd need to run a divider to use it at that kind of speed.

You do realise that this implies a 2:1 ratio between the CPU and mem ? The number of cycles between data transfers to and from the memory would only happen once each 36 CPU cycles, that's 3 cycles longer than the CPU pipeline is and that's just for one core...

There is no way in hell the prefetch and front end can manage to keep the pipelines on both cores full, guess what happen when a CPU is waiting on data...

Ever saw a goldfish out of water ?

thank you all of your replies. i have 2gigs of pc3200 and wanted to do the intel 805 oc to 3.6ghz or better, but i guess i cant. i also thought that my ram runs at max 200 fsb. anyways thank you all

What I said holds true for PC2-3200 (DDR2), PC-3200 (DDR) is a different technology.

My advice to you would be to OC a downbinned Venice core like a 3000+ or 3200+, Socket 939 still is a viable platform, meaning that you can go for a Dual Core CPU down the road. The on-die memory controller on A64s does'nt mind dividers in case your memory does'nt have any headroom over stock.

Then again, the ODMC does'nt like having more than 4 DIMMs, unless you have two 1GB modules, you'll have to settle for 1GB of memory (2x 512MB).

 

[plewis00_uk]

Yes, I am aware that DDR2 runs at 4 times the underlying FSB so yes, that it means a 2:1 ratio, so yes I noticed these things.

What I also said above is that DDR2-400 isn't designed for that CPU anyway, so he's probably running it at a reduced rate anyway now if at all. Therefore overclocking it definitely isn't going to reduce performance but it might well increase it a fair bit. So the processor is waiting around for data, it also has it's own cache which may well get some hits. I know it's worse on long-pipeline processors (Netburst-based) but overclocking it certainly won't slow it down, though I would be interested to see what benefits he gets from an overclock.

 

[SidVicious]

Keep in mind that this is only 3.2GB/s for TWO cores, that's less bandwidth per core than I fed my 1.3GHz (OC'ed) Duron with almost 5 years ago ! Chances are this 3.6GHz 805D will spend most of it time doing absolutely nothing...

 

[javimars]

this is what sissoftware sandra lite tells me:
SiSoftware Sandra

Mainboard
Manufacturer : ASUSTeK Computer INC.
MP Support : No
Model : A7V600
Version : REV 1.xx
Serial Number : xxxxxxxxxxx
System BIOS : 11/12/2003-VT8377/VT8237-A7V600

System Memory Controller
Location : Mainboard
Error Correction Capability : None
Number of Memory Slots : 3
Maximum Installable Memory : 3GB
Bank 1 - DDR 1 : DIMM Synchronous DRAM 1GB/64
Bank 2 - DDR 2 : Empty
Bank 3 - DDR 3 : DIMM Synchronous DRAM 1GB/64

Chipset 1
Model : ASUSTeK Computer Inc VT8377 Apollo KT400/A/600 CPU to PCI Bridge
Bus(es) : AGP PCI IMB USB i2c/SMBus
Front Side Bus Speed : 2x 167MHz (334MHz data rate)
Maximum FSB Speed / Max Memory Speed : 2x 200MHz / 2x 200MHz
Width : 64-bit
IO Queue Depth : 4 request(s)

Chipset 1 Hub Interface
Type : V-Link
In/Out Width : 4-bit / 4-bit
Multiplier : 2/1x
Speed : 8x 66MHz (528MHz data rate)
IO Queue Depth : 9 request(s)

Logical/Chipset 1 Memory Banks
Bank 0 : 512MB DDR-SDRAM 3.0-3-3-6 2CMD
Bank 1 : 512MB DDR-SDRAM 3.0-3-3-6 2CMD
Bank 4 : 512MB DDR-SDRAM 3.0-3-3-6 2CMD
Bank 5 : 512MB DDR-SDRAM 3.0-3-3-6 2CMD
Bank Interleave : 4-way
Speed : 2x 200MHz (400MHz data rate)
Multiplier : 6/5x
Width : 64-bit
Power Save Mode : No
Fixed Hole Present : No

APIC 1
Version : 0.03
Speed : 16MHz
Multiplier : 1/2x
Maximum Interrupts : 24
IRQ Handler Engaged : Yes
Enhanced Support : Yes

Memory Module 1
Type : 1GB DDR-SDRAM
Technology : 16x(64Mx8)
Speed : PC3200U 3.0-4-4-8
Date of Manufacture : Saturday, December 25, 1999
Set Timing @ 200MHz : 3.0-4-4-8

Memory Module 2
Type : 1GB DDR-SDRAM
Technology : 16x(64Mx8)
Speed : PC3200U 3.0-4-4-8
Date of Manufacture : Saturday, December 25, 1999
Set Timing @ 200MHz : 3.0-4-4-8

Memory Module 3
Type : 1GB DDR-SDRAM
Technology : 16x(64Mx8)
Speed : PC3200U 3.0-4-4-8
Date of Manufacture : Saturday, December 25, 1999
Set Timing @ 200MHz : 3.0-4-4-8

Memory Module 4
Type : 1GB DDR-SDRAM
Technology : 16x(64Mx8)
Speed : PC3200U 3.0-4-4-8
Date of Manufacture : Saturday, December 25, 1999
Set Timing @ 200MHz : 3.0-4-4-8

Memory Module 5
Type : 1GB DDR-SDRAM
Technology : 16x(64Mx8)
Speed : PC3200U 3.0-4-4-8
Date of Manufacture : Saturday, December 25, 1999
Set Timing @ 200MHz : 3.0-4-4-8

Memory Module 6
Type : 1GB DDR-SDRAM
Technology : 16x(64Mx8)
Speed : PC3200U 3.0-4-4-8
Date of Manufacture : Saturday, December 25, 1999
Set Timing @ 200MHz : 3.0-4-4-8

Memory Module 7
Type : 1GB DDR-SDRAM
Technology : 16x(64Mx8)
Speed : PC3200U 3.0-4-4-8
Date of Manufacture : Saturday, December 25, 1999
Set Timing @ 200MHz : 3.0-4-4-8

Memory Module 8
Type : 1GB DDR-SDRAM
Technology : 16x(64Mx8)
Speed : PC3200U 3.0-4-4-8
Date of Manufacture : Saturday, December 25, 1999
Set Timing @ 200MHz : 3.0-4-4-8

System Clock Generator
Model : ICS 94228
Software Programmable : Yes
Read-Back Support : Yes
Speed Selected By : Software
Spread Spectrum Modulated : Yes
Number of FSB Speeds : 32
FSB Speed Range : 67 - 233MHz

 

[plewis00_uk]

Ok, so this is a DDR1 board which is what I thought in the first place (when I heard PC3200) despite people insisting it was DDR2. Secondly, it's an AMD board so it won't take an 805D. Now, if the question you are asking was, can I upgrade to a Socket 775 board and use the 805D with my old memory, the answer would be yes (with the right board, see the post above from jamos, and there are plenty more which will work) but as has been forced down my throat quite clearly, you will be bandwidth starving the chip (but by how much, I don't know, you'd have to test it). The fact is, it will work but possibly not as fast as you might hope. I imagine it will still be a lot nippier than your old Athlon XP.

In response to SidVicious, this setup will have 6.4Gb/s of bandwidth, it is a dual-channel setup (as with almost all Pentium 4 machines). As it is also DDR1 the memory will run synchronized with the processor at 533FSB stock (DDR266) or whatever he overclocks it to.

 

[javimars]

dude plewis00_uk your awsome. thank you soo much for clearing the info for me.now one last question.is it worth it going to the 805d chip and mb? or just upgrade this pos to a mb 939 with 4800+?

 

[plewis00_uk]

You could go to socket 939 and get an X2 3800+ to overclock (forget the 4800+, it's a waste of money), keeping your RAM in the process (because 2Gb is worth it). Also consider the Opteron 165 (I think? Might be the 175) which is almost the same as the 3800+ (1.8Ghz x 2) but with 1Mb cache per core. The slower RAM on an AMD platform is less of an issue as the processor isn't so bandwidth hungry as Intel chips. Socket 939 seems like a bit of a waste given the release of AM2 now and that the CPUs are the same price (though you, personally, would need to buy more RAM).

If you are getting DDR2 RAM then make sure you get a mainboard which supports Conroe as well as that will be the obvious upgrade when it's released. In the meantime an 805D will tie you over (and it's about half the price of the cheapest X2, though also not as fast). If you are going the DDR2 route, I'd avoid AMD as they seem to have nothing competitive out now or in the near future.

 

[SidVicious]

That Sandra dump is a bit strange but it would seems like you got two 1GB modules, a simple visual inspection will confirm that.

Depending on your budget, either go for a low binned Venice (single core) or a Manchester (dual core), both are great overclockers even on stock cooling, it's just a matter of getting the motherboard that suits your needs and budget.

AM2 is no panacea and Socket 939 won't be EOL'ed for quite some time, given a decent overclock, especially on a dual core CPU, you won't have to worry about being CPU limited for quite some time.

I would like to see the specs on your current rig, it would be possible to migrate some of your hardware to your new build, especially if you got a decent GPU.

 

[javimars]

i got this from 3dmark03. i returned the 7800gs and about to order either the 7950 x2 or ati x1900x.also i have 1x wd 130gig and 2x wd 80gig hdds.
System Configuration. i dont know if those are good scores or not but with the 7800gs is a lot better than my old gf4 4600ti. i was getting around 40 fps on bf2 at max settings at 1200x1024. also got a 21" monitor.

General Information
Operating System Microsoft Windows XP
DirectX Version 9.0c
Mobo Manufacturer ASUSTeK Computer INC.
Mobo Model A7V600
AGP Rates (Current/Available) 8x / 4x, 8x
CPU AMD Athlon(tm) XP/MP/4 2083 MHz
FSB 166 MHz
Memory 2048 MB

Display Information
Graphics Chipset NVIDIA GeForce 7800 GS
Driver Name NVIDIA GeForce 7800 GS
Driver Version 8.4.2.1
Driver Status WHQL - FM Approved
Video Memory 256 MB
Core Clock 481 MHz
Memory Clock 1404 MHz

Sound Information
Sound Adapter Driver Name SoundMAX Digital Audio
Sound Adapter Driver Version 5.12.1.3620

Benchmark Settings
Program Version 3DMark03 Revision 6 Build 0
Resolution 1024x768@32 bit
Texture Filtering Optimal
Pixel Processing / Antialiasing None
Post Processing false
Vertex Shaders Optimal

Main Test Results
3DMark Score 12389 3DMarks
CPU Score 498 CPUMarks

 

[liquidpaper007]

thank you all of your replies. i have 2gigs of pc3200 and wanted to do the intel 805 oc to 3.6ghz or better, but i guess i cant. i also thought that my ram runs at max 200 fsb. anyways thank you all

sounds like your talking about ddr. right now i have ddr2 533 and my fsb is at 173. I did at one point have my cpu at 180, but its not too stable and my motherboard does not have voltage adjustments. at 3.46 it is prime stable so I just keep it there.