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Sempron 754 vs Athlon XP Mobile Combo
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I'd like to add that PCIe skt754 is now a reality, so that should put the argument about it having no more future than sktA to rest for good 🙂 The skt754 platform i.e. Sempr0n with SSE2/3&C&Q, boards that overclock well and have 64bit CPU support, and now PCIe makes it just too good a price/performer/upgrade path for sktA to warrant serious consideration anymore. As I stated before, outside of taking advantage of SoundStorm, sktA, the long reinging budget king, is dead! Long live the new king! 🙂
Actually what is SoundStorm and how's socket A better with it?
Is there any skt 754 board with PCIE available for a good price? Would it be cheaper for me to get a PCIE card then an AGP vid?
If the Epox is better then I don't have to rush my order of the Chaintech and wait a bit to see what to get. Thanks.
Is there any skt 754 board with PCIE available for a good price? Would it be cheaper for me to get a PCIE card then an AGP vid?
If the Epox is better then I don't have to rush my order of the Chaintech and wait a bit to see what to get. Thanks.
SoundStorm is the nvidia audio processing unit that can hardware encode dolby digital 5.1 in real time. It has very low CPU usage and makes the basis of a great HTPC setup.
There are some very affordable skt754 PCIe 16x boards, the MSI is a good deal and for some cards PCIe is less expensive than the AGP version e.g. x800xl or 6600GT. I don't think there is a IGP version though, just brought it up for the upgrade path debate going on between the 2 platforms in question 🙂
There are some very affordable skt754 PCIe 16x boards, the MSI is a good deal and for some cards PCIe is less expensive than the AGP version e.g. x800xl or 6600GT. I don't think there is a IGP version though, just brought it up for the upgrade path debate going on between the 2 platforms in question 🙂
DrMrLordX
Lifer
The highest I could push my VNF3-250 was 320 HTT before WinXP bluescreened during the boot process. Whether this was related to memory speeds or what, I do not know. However, I don't think it's terribly reliable past 300 HTT, so being able to boot at higher speeds doesn't seem to mean much.
Yes definitely! All boards I heard of that overclock well contain only AGP slot. Would certainly like to know if any board with PCIE slot will overclock well. Also is there any video integrated board that would overclock well too. Please chip in if you know any.
DrMrLordX, so for your Chaintech VNF3-250 board, at what FSB do you have it set now so Windows is staple? Just want to know if it's worth for me to jump in at $59 or I should get the Epox board for $65. Thanks!
DrMrLordX
Lifer
My current speed is HTT(Athlon64 lingo for FSB) of 290. CPU-Z reports it as 290.4. The VNF3-250 does overclock/overvolt automatically by a wee bit. Naughty Chaintech!
Anyway, 290.4 HTT x 8 = around 2323 mhz, at least according to CPU-Z.
This is at stock vcore, which hovers around 1.42v on the Chaintech.
300 HTT x 8 = 2400 mhz was stable at 1.52v vcore(1.475 in BIOS, reported as 1.52v by Digidoc utility).
I have not gotten an OC stable higher than that.
300 HTT sounds good to me. If I were to get the Sempron skt 754, that will give me 2.4ghz! Now I just wonder if it's necessary for me to get the 2800+ with extra cache and it probably won't make a difference anyway.
Also just wonder what's the HTT multiplier you set for the chaintech? At 300 HTT if you set to 3 then does it mean it runs at 1800mhz Hyper Transport. If so that's blazing fast! Maybe I should really buy this board instead of the epox board, what do you guys think?
Also just wonder what's the HTT multiplier you set for the chaintech? At 300 HTT if you set to 3 then does it mean it runs at 1800mhz Hyper Transport. If so that's blazing fast! Maybe I should really buy this board instead of the epox board, what do you guys think?
DrMrLordX
Lifer
Yes, I use the 3x LDT/HT mutliplier, for an actual Hypertransport speed of 900 mhz(1800 mhz effective, but we usually list the actual speed). However, keep in mind that it's not really "blazingly fast" to have one's HT speed that high. As long as it's over 600 mhz actual speed, it's fine. I use the 3x multiplier 'cuz it won't boot past 265 HTT using any other multiplier. It's a quirk of the board.
Either the Epox or the Chaintech board should work fine for you. You might want to look into the memory dividers on the Epox board to see if there are more options there, as I have been somewhat underwhelmed by the memory dividers on the VNF3-250. Also, there are those PCIe 754 boards to consider . . .
edit: a cursory glance of the boards on Newegg seems to indicate that the socket 754 PCIe boards are gonna cost you $72 or higher(at least on the Egg). There is also very little information available on any of these boards, and their availability is pretty low.
If I were you, I'd stick to AGP boards for socket 754.
Either the Epox or the Chaintech board should work fine for you. You might want to look into the memory dividers on the Epox board to see if there are more options there, as I have been somewhat underwhelmed by the memory dividers on the VNF3-250. Also, there are those PCIe 754 boards to consider . . .
edit: a cursory glance of the boards on Newegg seems to indicate that the socket 754 PCIe boards are gonna cost you $72 or higher(at least on the Egg). There is also very little information available on any of these boards, and their availability is pretty low.
If I were you, I'd stick to AGP boards for socket 754.
Thanks drMrLordX! I don't know if the Epox board would have more option for the Memory divider. It should all depends on the Bios right?
Just wonder with your Chaintech VNF3-250 board does it have a good divider for PC3200 memory. I would like to know what memory divider you are using? Since most likely I will get a PC3200 value/budget ram, it will have it set at 200mhz and if hopefully I can OC the CPU to 300mhz then it would be nice to have a 3/2 divider.
Again thanks for all the help and I mostly will stick with an AGP board as it seems to work pretty well with all people here in the forum. Thanks!
Just wonder with your Chaintech VNF3-250 board does it have a good divider for PC3200 memory. I would like to know what memory divider you are using? Since most likely I will get a PC3200 value/budget ram, it will have it set at 200mhz and if hopefully I can OC the CPU to 300mhz then it would be nice to have a 3/2 divider.
Again thanks for all the help and I mostly will stick with an AGP board as it seems to work pretty well with all people here in the forum. Thanks!
Just saw this today: Socket 754 will be Sempron only soon - no more A64s for 754!
http://forums.anandtech.com/messageview...atid=28&threadid=1580944&enterthread=y
Irene, this doesn't need to affect your decision as long as you're sure you won't want to upgrade to an A64 CPU in the future.
http://forums.anandtech.com/messageview...atid=28&threadid=1580944&enterthread=y
Irene, this doesn't need to affect your decision as long as you're sure you won't want to upgrade to an A64 CPU in the future.
Just a quick note, I am using a matx msi k8n (nforce 3 -250) with a mobile xp3000 (essentially a 1.6ghz sempron with 256kb cache) I have it currently running at 260mhz fsb for 2.1ghz. I cannot get any higher as the board locks despite the fact the chip could easily do it. (I have lower multipliers and it still locks out at the fsb regardless of ht speed/mem ratio).
For those saying the s754 is dead at least the turions will be available to use
For those saying the s754 is dead at least the turions will be available to use
It is a mobile Sempron: http://www.thedigerati.us/info/amdcpuchart.html#sempm
That must be total cache since L2 should be 128K.
That must be total cache since L2 should be 128K.
You will definatly need to lower the HTT Multipler when overclocking a Sempron... Just drop it down to 3X.... as you will be going well over 250HTT bus....
I was able to get my Chaintech VNF3-250 Super-Pi Stable around 320 HTT bus... only "Mods" were AS5 on the Chipset HS, and some small ramsinks on the power mosfets.
As for 2600+ vs. 2800+, the 2800's extra cache has proven to be little help.... SHould be callewd a 2650+ instead of a 2800+ if you ask me.... Very little difference in CPU Scores... Sandra MM or Arith tests....
I was able to get my Chaintech VNF3-250 Super-Pi Stable around 320 HTT bus... only "Mods" were AS5 on the Chipset HS, and some small ramsinks on the power mosfets.
As for 2600+ vs. 2800+, the 2800's extra cache has proven to be little help.... SHould be callewd a 2650+ instead of a 2800+ if you ask me.... Very little difference in CPU Scores... Sandra MM or Arith tests....
DrMrLordX
Lifer
It should only depend on the BIOS, yes, but some boards are just more tweakable than others for reasons largely unknown to me.
The VNF3-250 supports the following memory settings:
Default, 166, 133, and 100
Default runs your memory at the HTT speed
166 runs your memory at approximately 4/5 the speed of your HTT(a wee bit higher).
133 runs your memory at approximately 2/3 the speed of your HTT.
100 runs your memory at 1/2 the speed of your HTT.
I use the 133 setting. According to CPU-Z, I have my PC3200 clocked at 193.6 mhz with a HTT of 290.4
Sounds like a good plan. Oh yeah, out of curiosity, what RAM are you going to be putting in this system? Athlon64s and Semprons handle memory a little differently than SocketA platforms do. How many DIMMs you install, and whether or not they are single-sided or double-sided can affect things sometimes. One double-sided DIMM works all the time, though, unless you've got some kind of arcane motherboard/memory brand conflict. Which . . . isn't likely.
after doing more research I found that for $50 more, I can get a refurb A64 skt 939 3000+ with the MSI Neo 2 board. Though it's not a Venice but it seems the Venice only offers the max a 5% performance increase. So for $50, it seems attractive to get the 939 instead. What do you guys think?
Also since the MSI board support dual channel, will it work with 2 doubled sided memory or it will only work with 2 single sided memory for dual channel? Thanks for all the help!
Lastly just wonder what's the difference between the MSI K8N Neo2 board from the ones with SLI. What special function does the SLI board offer? Thanks!
Also since the MSI board support dual channel, will it work with 2 doubled sided memory or it will only work with 2 single sided memory for dual channel? Thanks for all the help!
Lastly just wonder what's the difference between the MSI K8N Neo2 board from the ones with SLI. What special function does the SLI board offer? Thanks!
It isn't easy is it, Irene! I think Socket 939 makes more sense for the future than Socket A or 754 but does cost more.
A refurbished CPU can be good (is this Newegg?) but someone had trouble with it and returned it. That could be (and probably is) due to incompetence but could be because the CPU disappointed them (maybe they didn't think it was a good overclocker, who knows). As long as you can return it if some bozo damaged it, then it should work out well - but just like anything used, "you takes yer chances"!
The MSI shouldn't have problems with double sided memory in dual channel mode (as long as there are only 16 chips on a module).
SLI boards are more expensive and don't have AGP slots. So if you plan to reuse an AGP card you'd have to get a PCI Express video card or use an old PCI video card. SLI is faster but not necessary for what you've said you'd be using the system for.
(BTW, if the AGP card is four or five years old it probably won't fit into a modern 4x/8x AGP slot anyway. Doesn't matter if the new AGP motherboard is Socket A, 754 or 939.)
A refurbished CPU can be good (is this Newegg?) but someone had trouble with it and returned it. That could be (and probably is) due to incompetence but could be because the CPU disappointed them (maybe they didn't think it was a good overclocker, who knows). As long as you can return it if some bozo damaged it, then it should work out well - but just like anything used, "you takes yer chances"!
The MSI shouldn't have problems with double sided memory in dual channel mode (as long as there are only 16 chips on a module).
SLI boards are more expensive and don't have AGP slots. So if you plan to reuse an AGP card you'd have to get a PCI Express video card or use an old PCI video card. SLI is faster but not necessary for what you've said you'd be using the system for.
(BTW, if the AGP card is four or five years old it probably won't fit into a modern 4x/8x AGP slot anyway. Doesn't matter if the new AGP motherboard is Socket A, 754 or 939.)
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