Speeds change after Bios update

When I first built this computer and finally adjusted my overclock settings, I had the following numbers in memtest:
L1 = 21641 mb/s
L2 = 5377
memory = 2344

I updated the bios and reset my settings and now I am getting the following:
L1 = 21641 mb/s
L2 = 1517
memory = 1495

I rechecked everthing and all if fine. Why would the bandwidth change?
Are these numbers good on this type system?

model number: ADA4800DAA6CD
core description: 4800+ Athlon Processor
5-letter code: CCBWE
week-code: 0523
4-letter code: VPMW
13-letter code: 1268446G50362
CPU frequency: highest with current heatsink 220 x 12 = 2640 @ 1.4125 v
CPU voltage: 1.4125 V
temperature (system idle/load, CPU idle/load): system 40/44 C, CPU 45/66 C
cooling: Zalman CNPS7700-CU with Artic Silver 5
motherboard: Asus A8N-SLI Premium
memory: Corsair 2X1G PC3200 2048MB
memory bus frequency: 400
memory timing: 2.5-3-3-6 1T
memory voltage: 2.75 V
HT frequency:
power supply: Antec TP2-550
case: Antec P180

Here are the other memory options and my settings:
TRC 9
TRFC 11
TRWT 2
TRW 3

most probably the default is 333mhz. Go to BIOS and check it. You may have to manually set the Ram timing (according to spec if not OCing).

I have it set to 400mhz

Does anyone know if the bandwidth readings above is normal for the system I have?

oldsouth said:

I have it set to 400mhz

Click to expand...

it should be around 2100 in memtest86 for DDR400
maybe are not in dual channel. Have you checked CPUZ and Everest?
Also make sure not set @ 2T in bios (auto).
Clear CMOS and see if that helps

L2 and memory speed looks unnormal, but don't know what's the problem, try see 3Dmarks running, is it still lower than b4?

may be just flash back to the old bios version if not really need the new version.

I ran Sisoftware Sandra and these are the readings I am getting.

oldsouth said:

I ran Sisoftware Sandra and these are the readings I am getting.

Click to expand...

That looks about right. Apparantly the memtest86 is showing it incorrectly.
It is possible that there is a delay in the new bios and the floppy is loaded before mem getting a chance to load correctly. Just a guess, and maybe bios is corrupted. I suggest to roll back (flash) to former bios. and bring this problem to the attention of mobo manufac.