Thinking of switching from AMD to Intel

[sai]

Hi, my new Mach2 should be delivered on monday/tuesday to me, so I thought if my Venice has a sub zero bug and I need to buy a new cpu, I could also sell my mobo and get a Dothan. What do I need for a Dothan, what's the best mobo, which ram do I need, what ocs to expect? :)

[Turok]

Why not just update to A64 X2?
I believe you will get superior peformance

[sai]

Because it's too expensive atm. I'd have to wait for the 3800+ X2, but if my Venice has a problem with phase change I immediately need a new proc.

[Turok]

A64 3700+ (Sab Diego)
$324.90 (zipzoomfly.com)

A64 4000+ (Sab Diego)
$474.90 (zipzoomfly.com)

A64 X2 4200+
$556.00 (zipzoomfly.com)

Vs.

Dothan 735 (1.7 Ghz) $270 + Mobos from $50-$100
$320-$370 (zipzoomfly.com)

Dothan 745 (1.8 Ghz) $310 + Mobos from $50-$100
$360-$410 (zipzoomfly.com)

Dothan 755 (2.0 Ghz) $450 + Mobos from $50-$100
$500-$550 (zipzoomfly.com)

Dothan 765 (2.1 Ghz) $655 + Mobos from $50-$100
$705-$755 (newegg.com)

To beat a A64 3700+ San Diego, you would need something > Dothan 765 wich the CPU only seems to be double the price of a A64 3700+ San Diego.
You can use the same money to update to a A64 X2 if you were thinking about something > a Dothan 765

Since you are in Germany, A64's may be cheaper there (correct me if Im wrong. I say this because of the AMD factory there)

[sai]

Damn, then let's say I can sell my Venice for 150euro. I would need another 150euro again to get a 3700+ :(

[sky]

A64 3700+ (Sab Diego)
$324.90 (zipzoomfly.com)

A64 4000+ (Sab Diego)
$474.90 (zipzoomfly.com)

A64 X2 4200+
$556.00 (zipzoomfly.com)

Vs.

Dothan 735 (1.7 Ghz) $270 + Mobos from $50-$100
$320-$370 (zipzoomfly.com)

Dothan 745 (1.8 Ghz) $310 + Mobos from $50-$100
$360-$410 (zipzoomfly.com)

Dothan 755 (2.0 Ghz) $450 + Mobos from $50-$100
$500-$550 (zipzoomfly.com)

Dothan 765 (2.1 Ghz) $655 + Mobos from $50-$100
$705-$755 (newegg.com)

To beat a A64 3700+ San Diego, you would need something > Dothan 765 wich the CPU only seems to be double the price of a A64 3700+ San Diego.
You can use the same money to update to a A64 X2 if you were thinking about something > a Dothan 765

Since you are in Germany, A64's may be cheaper there (correct me if Im wrong. I way this because of the AMD factory there)

hey, those are some crazy a** prices. also, why did you list only the old
fsb 100 mhz dothans? those usually crap out fsb-wise before they can do
any real damage and live only because of their higher multipliers. anyway,
there's quite few sources over here that sell a 760 for 200€ and a 770
for 230€ - those are untested tray cpus, so no warranty. if you go for
procs that are pretested, you have to put another 100€ down. so with
prices like those, a dothan seems more affordable - sure the regular shop
prices are higher, about the ballpark regions you quote, but you can buy
via sales in forums or off ebay. that's where i got my 760 for 200€ (eb*y)
some months ago.

also, i cannot comment on the a64 prices as i have left the athlons alone
for the last 6 or 7 months, due to dothan fanboyism :)...

sai, you may want to check the hwl-forum for a good 760/770...

regarding a 3700 sd, well... he has a mach2 coming to him, so he does
have a huge potential ahead. if he uses a dothan, he should be able to
get to 2600-2800 mhz on air with the stock cooler (unless he gets a
real bad chip). from there 3.0ghz should be quite possible - maybe not
much more than that, but given the right fsb and ram settings, he can
do very good. just remember that we are able to slap fx's around if we
go for the same core-speed. so 2.6ghz vs 2.6ghz should be in dothans
favour. ok i'm a fanboy, sort of, right now. but look into the 2 major
dothan threads here and see for yourself. especially with the prospect
of probably using pci-e boards to go with the dothan and the ct-479
adaptor (another thing i don't see up there in your calculations ;) )

summing up that is (in realworld prices :D):

a 760 or 770 - 200-230€ (see above)
ct479 adapt. - 40€
asus p4 board - 45-130€ (130€ is a p4c800e-dlx rev.2 NEW)

280-400€ max (1€ is $1.19 - that's max $476 for a 770)

p4p800-se (like i'm using start at around 45€ up to ~70€. a p4gd1 or
p4-gpl are around 70€new (that's the pci-e boards), if you can find
them in a shop, that is.

[Turok]

Note that the prices I posted above are US $, so It may be different in Euros

You would of done a big mistake if you bought a Intel chip :nono: :D

Your Venice 3200+ is about $190 here (OEM). You could update to a Venice 3500+ ($260 here), but that wouldnt be a huge improvement since you will still have the same cold bug and it will be the same thing but a few Mhz extra. San Diego's are nice cores, so your best bet is to get a 3700+ San Diego.

http://www.xtremesystems.org/forums/showthread.php?t=66624&highlight=dfi+vmod
I was reading in this thread and aparently the Cold bug is due because the startup voltage being 1.35v. Something like that :p:
This is what the "Central Brain Idntifier" shows on my PC. Initial Voltage is 1.40v
http://img162.imageshack.us/img162/4295/startupv0qw.gif
The thread is about a alternate vdimm mod without using the 5v jumper on DFI nF4's
Dont know if it will be the same on your board, but you can try it out

[sai]

Damnit sky I've been trying to ring you up in ICQ for the last 5 days if you got any phase change you're selling. Well finally I found a Mach2...
If you see any cheap 3700+ around, PM me. tbh I don't really wanna to go trough all this trouble -> buying new mobo, new cpu, build a custom kit for Mach. :(

Edit: Why would I need a vdimm mod ? :confused:

[sai]

I was reading in this thread and aparently the Cold bug is due because the startup voltage being 1.35v. Something like that :p:
This is what the "Central Brain Idntifier" shows on my PC. Initial Voltage is 1.40v


Hm you're confusing me right now. So you're saying this is a possible solution for the cold bug issue ? And what do you mean with startup voltage ? Venice has 1.35v and SD 1.4v or w00t ?

[Turok]

Hm you're confusing me right now. So you're saying this is a possible solution for the cold bug issue ? And what do you mean with startup voltage ? Venice has 1.35v and SD 1.4v or w00t ?

My CPU is a FX-55

Yes, its a possible Cold bug solution. Try finding help there if you want to try it

Im guessing someoen could sell you a San Diego as cheap as they sell Dothans, because a lot of testings have been done in these forums since the release of the new San Diego cores. You just have to search.

[Turok]

BTW, since you are gettings a Mach2, you might think about the vdimm mod first, since this could let you get some xtreme results out of your Venice.

Im guessing the cause of the Cold bug because of low voltage is because the core isnt getting enough voltage to run the transistors so at sub zero temps, it just stops.

[sai]

I'm pretty sure it's not voltage dependant more like temp dependant. Hm I got 3.2v in BIOS that's more than enough for TCCD. :p:

[Turok]

I'm pretty sure it's not voltage dependant more like temp dependant. Hm I got 3.2v in BIOS that's more than enough for TCCD. :p:

Aparently it is a voltage problem. Looks like the BIOS causes it to drop when booting up. Doing the vdimm mod gives you control of the voltage

I dont know exactly why the CPU stops because of low voltage, that would be something you can ask in that thread

I would also send a PM to timpanogos, because in his signature he has the following:
"AMD Athlon FX-55
DIY 1.25 gal external dual core W/C system
LanParty UT nF4 Ultra-D Bios N4D623-2
1024k OCZ EL DDR PC4000 Dual Channel Gold VX (Yellow slots)
j17 3.3, but one pin jumper trick, bios 3.3v actual 3.38v 250@2.2.2.5
no cold boot issues with this config..."

[sai]

I don't get your whole point here. So the A64 cold boot bug is a Vdimm related problem ?! OR WHAT ?!! :confused: :confused:

[Turok]

I don't get your whole point here. So the A64 cold boot bug is a Vdimm related problem ?! OR WHAT ?!! :confused: :confused:

Yes, its a vdimm problem

[sai]

Who proved this ?

Edit: I read through it now..hm I bet my ass this ain't public knowledge here on the board..time to spread it ?! :slap:

[Turok]

I dont know exactly, but aparently there could be more tricks since I saw this:

------------------------------------------------------------------------
http://img146.imageshack.us/img146/2760/vdim4yx.gif
------------------------------------------------------------------------
http://img146.imageshack.us/img146/6914/tim6ok.gif
------------------------------------------------------------------------

[sai]

Well but there's an oddity, lots of ppl experienced freezes in Windows when a certain temperature is reached. :(

Edit: LoL I think I'm talking about something different the whole time. Sub zero bug ?!

[railer]

Posted by Turok
You would of done a big mistake if you bought a Intel chip
Sounds like AMD fanboy to me :stick:
Well about the prices Turok and cpu's you posted it just shows that you are not realy well informed. I have my setup for $325 total shipped to my door
$205new 730-pm,
$47 CT-479 and
$60 P4P800SE v 2.2 used or $70 new from ebay.
This @2.8 will do beter then 3700+ @ 3.2 And with phasechange you should see 3g probably. Lets not go into dead platform and stuff. As i understand this guy here is truing to save some money. Dothan sys makes realy nice low end gaming rig. Do you belive that i play Doom3 1280/1024 4xAA 8xAF @ 100+ fps with my setup :fact:

[DaWaN]

I bought a 740 for only €150 second hand :D P4P800SE for 47€ :D
That beats the :banana::banana::banana::banana: out of AMD price/performance :p:

[QuikSilver]

AFAIK the cold boot and cold bug are 2 different things. Cold boot is due to the vdimm voltages/types of ram when the system wont boot and the cold bug is when the CPU reaches certain temps windows locks up or if it is too cold wont boot at all.

[Turok]

One thing is getting it from a retailer and another is getting it nice and cheap from another user.
Aparently the nice deals you guys have had are because someone sold it to you, so you are comparing Retail vs used. Im compareing Retail vs Retail

[Astral7]

P4P800 SE (http://www.newegg.com/OldVersion/app/ViewProductDesc.asp?description=13-131-484R&depa=0) $57.00

730-750 (http://www.ewiz.com/query.php?categry=5)$210.00-300.00

CT-479 (http://www.xpcgear.com/asusct479.html)$50.00

Total = $320.00-410.00 :stick:

[sai]

P4P800 SE - 50€
Pentium M 730-750 - 195€-288€
CT479 - 33€