did you reset the bios first. ? (id pull the coin cell)
you did all that backwards , the steps are.
1: read the HP service guide see all processors supported.
its a short list. its not like changing light bulbs.
2: the BIOS must support that precessor too.
3: the upgrade if possible , SEE?
d530 SFF, is a small form factor desktop.
it came with
Intel Pentium 4 2.8 GHz
my guess is you want the 3.3mHz version. ( a wasted effort and cash in my opinion the ,it is only fractionally faster, (go for 2 or 4 cores and win)
these old PC are mostly NOW scrapped, gone, nobody wants them.
for good reasons. (no support and no parts, and slow as slug)
worse is it runs XP the dead, now, virus magnet.
support at HP says.
HP COmpaq EVO Business D530
circa 2003, 14 years young?
some sold with Windows 2000. ! ouch and Mandrake 9.1 Linux - Light and OS/2...
specs. that matter
Intel 865G Chipset
800-MHz, 533-MHz or 400-MHz FSB (front side bus limits)
and the memory must match it. speed wise.
the parts surfer (HP ) shows it cam with 17 processor options.
sold newer, the full p/n in the service tag tells this.. not told by you.
some Celeron and other P4s.
the fastest one is, (HP P/N#)
335813-001
Intel Pentium 4 processor - 3.20GHz (Northwood with Hyper-Threading, 800MHz front side bus, 512KB L2 cache, FCPGA2, Socket 478)
the problem with that is the BIOS, many times the newer faster
the hp support page is active.
the last BIOS update is for just this, processors
eg: BIOS 109
Updates Intel Pentium 4 Processor microcode for F41, F34, F29 and F49 steppings. (cupid app shows this)
getting the BIOS correct first is hard.. due to variances, in mobo
https://support.hp.com/us-en/drivers/selfservice/hp-compaq-d530-small-form-factor-desktop-pc/316713
lession1:
when PC boots, the BIOS scans many thing but CPU is #1
it scans it to see if it recognizes, it.
if it can not do that, (not in its old 2003 list) then it defaults to slowest CPU support, what else can it do?
the it sets up clock rates properly, this is super basics in PCs.
Then it scans the memory sticks to see if they can run at this clock rate, if not it goes to slow speeds. (what else can it do ?)
it will go to the slowest ram stick inserted. speeds.
or to slowest processors you have actual.
that is all.
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