pentium 3200 sk478 on 533mhz fsb

rickzor

Distinguished
Feb 11, 2007
506
0
18,990
When "you" place a pentium 4 3200mhz FSB 800mhz socket 478 on a board that only goes up to a fsb of 533mhz, is it surprising that the system won't even post? I was hoping it would at the speed of 2132 mhz (judging by this http://images.tomshardware.com/2005/11/21/the_mother_of_all_cpu_charts_2005/cpu_table_intel_big.gif ), but it didn't.
If you're wondering why did i placed there, well i was only testing it, i don't have a socket 478 board wth 800mhz fsb to "play around", and now i'm wondering if the cpu might be dead, or if it didn't boot just because of such low fsb\internal clock.
The mobo used was a p4vxasd2+.

Thanks in advance.
 

rickzor

Distinguished
Feb 11, 2007
506
0
18,990
Argh, well the cpu was to be applied on this motherboard -> P4VT8
I'll only be able to apply it on the end of the week, and till then i wont be able to know if it will work or not. What's frightning (the money i spend :s) me, it that here http://www.asrock.com/support/CPU_Support/show.asp?Model=P4VT8 says cores till northwood, and doesn't talk about prescott. May this cause the cpu not to work on the damn board? the only difference i see is the cache size..
 

ajfink

Distinguished
Dec 3, 2006
1,150
0
19,280
Argh, well the cpu was to be applied on this motherboard -> P4VT8
I'll only be able to apply it on the end of the week, and till then i wont be able to know if it will work or not. What's frightning (the money i spend :s) me, it that here http://www.asrock.com/support/CPU_Support/show.asp?Model=P4VT8 says cores till northwood, and doesn't talk about prescott. May this cause the cpu not to work on the damn board? the only difference i see is the cache size..

There are actually a bunch of differences between Northwood and Prescott, but Northwoods are often preferred. Prescott was a bungle on Intel's part, most people agree.

That being said, almost every board that I know of that supports 800Mhz FSB Northwoods will also support Prescotts. I believe, anyway. It sounds like you already bought it, so try it and see what happens.
 

rickzor

Distinguished
Feb 11, 2007
506
0
18,990
You need Bios later than 1.40. I see Prescott supported here:

http://www.asrock.com/mb/overview.asp?Model=P4VT8%2b

But that's the p4vt8+ version, but yeah i'll put it the latest bios anyway. And the p4vt8 and p4vt8+ have the same chipset..
But it might be risky or even not possible to apply a p4vt8+ bios on a p4vt8 board
 

rickzor

Distinguished
Feb 11, 2007
506
0
18,990
I was able to try it on that p4vt8 board i mentioned yesterday, it did actually work, but the really odd thing is that it was slower when rendering than the original cpu the board had, a pentium 4 1700mhz, when i turned off the HT suport in the bios, it did worked faster.
With HT on, the windows task manager shows in the performance tab 2 cpus, when HT is off, it only shows 1 cpu, but seems faster..
I'm gonna google what HT is, i remember hearing a lot about it when the first 3ghz intel cpus came out, but i never knew what it was.